Local Weather

Cornwall 14 Day Long Range Forecast

14 Day weather providing an extended long range forecast outlook for Cornwall

Ontario, Canada

Long range weather outlook for Cornwall includes 14 day forecast summary:

The forecast for Cornwall in the coming two weeks is predicting the average daytime maximum temperature will be around -4°C, with a high for the two weeks of 5°C expected on the afternoon of Tuesday 7th. The average minimum temperature will be -15°C, dipping to its lowest on the morning of Saturday 4th at -35°C. Expect the following 14 days ahead to have some days seeing a little precipitation and some days with rain, sleet or snow. The indicators are that Friday 10th will have the most precipitation with an accumulation of around 14.0mm. On the whole winds are likely to be moderate.

DayLocal TimeDirSpeed/
Gust
Temp/
Feels Like
HumidityPressureCloud AmountPrecip AmountWeather
Thu 02
Feb
14:00

SSW
SSW

18 / 24 mph 27 / 15°F 83% 1010 mb
Low level cloud: 89%
Mid level cloud: 100%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
17:00

SW
SW

20 / 31 mph 28 / 15°F 75% 1006 mb
Low level cloud: 40%
Mid level cloud: 100%
High level cloud: 35%
Most Significant Cloud Type: low
79%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
20:00

SW
SW

21 / 31 mph 28 / 15°F 92% 1003 mb
Low level cloud: 78%
Mid level cloud: 100%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.02 In of precipitation over the past 3 hours.
0.02 In
23:00

WNW
WNW

19 / 28 mph 13 / -4°F 75% 1008 mb
Low level cloud: 17%
Mid level cloud: 60%
High level cloud: 0%
Most Significant Cloud Type: medium
100%
Expect 0.04 In of precipitation over the past 3 hours.
0.04 In
Fri 03
Feb
02:00

WNW
WNW

13 / 21 mph -2 / -21°F 78% 1014 mb
Low level cloud: 38%
Mid level cloud: 2%
High level cloud: 0%
Most Significant Cloud Type: low
39%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
05:00

WNW
WNW

9 / 17 mph -11 / -28°F 84% 1018 mb
Low level cloud: 53%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: low
54%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
08:00

WNW
WNW

13 / 20 mph -15 / -36°F 79% 1021 mb
Low level cloud: 25%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: low
25%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
11:00

WNW
WNW

12 / 16 mph -14 / -36°F 86% 1024 mb
Low level cloud: 95%
Mid level cloud: 2%
High level cloud: 0%
Most Significant Cloud Type: low
95%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
14:00

W
W

14 / 17 mph -13 / -36°F 75% 1024 mb
Low level cloud: 100%
Mid level cloud: 7%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
17:00

W
W

13 / 19 mph -13 / -35°F 81% 1025 mb
Low level cloud: 100%
Mid level cloud: 47%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
20:00

WNW
WNW

12 / 19 mph -15 / -36°F 82% 1027 mb
Low level cloud: 100%
Mid level cloud: 45%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
23:00

WNW
WNW

11 / 19 mph -18 / -40°F 79% 1029 mb
Low level cloud: 100%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
Sat 04
Feb
02:00

W
W

9 / 16 mph -22 / -42°F 85% 1032 mb
Low level cloud: 62%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
62%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
05:00

SW
SW

8 / 16 mph -26 / -45°F 91% 1035 mb
Low level cloud: 6%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
5%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
08:00

SW
SW

6 / 13 mph -30 / -48°F 95% 1037 mb
Low level cloud: 3%
Mid level cloud: 10%
High level cloud: 14%
Most Significant Cloud Type: medium
18%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
11:00

WSW
WSW

7 / 9 mph -16 / -32°F 82% 1037 mb
Low level cloud: 0%
Mid level cloud: 45%
High level cloud: 32%
Most Significant Cloud Type: medium
45%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
14:00

WSW
WSW

7 / 8 mph -6 / -20°F 73% 1035 mb
Low level cloud: 0%
Mid level cloud: 100%
High level cloud: 37%
Most Significant Cloud Type: medium
100%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
17:00

SW
SW

4 / 6 mph -2 / -11°F 76% 1033 mb
Low level cloud: 1%
Mid level cloud: 100%
High level cloud: 0%
Most Significant Cloud Type: medium
100%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
20:00

ENE
ENE

5 / 8 mph -4 / -14°F 91% 1031 mb
Low level cloud: 87%
Mid level cloud: 100%
High level cloud: 6%
Most Significant Cloud Type: low
100%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
23:00

ENE
ENE

6 / 12 mph -4 / -16°F 98% 1028 mb
Low level cloud: 84%
Mid level cloud: 95%
High level cloud: 33%
Most Significant Cloud Type: low
100%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
Sun 05
Feb
02:00

ENE
ENE

5 / 11 mph 6 / -5°F 97% 1024 mb
Low level cloud: 66%
Mid level cloud: 100%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.02 In of precipitation over the past 3 hours.
0.02 In
05:00

ENE
ENE

3 / 7 mph 14 / 8°F 95% 1020 mb
Low level cloud: 60%
Mid level cloud: 70%
High level cloud: 100%
Most Significant Cloud Type: low
95%
Expect 0.02 In of precipitation over the past 3 hours.
0.02 In
08:00

ENE
ENE

4 / 8 mph 17 / 11°F 95% 1018 mb
Low level cloud: 67%
Mid level cloud: 100%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.02 In of precipitation over the past 3 hours.
0.02 In
11:00

SSW
SSW

4 / 6 mph 29 / 24°F 84% 1015 mb
Low level cloud: 85%
Mid level cloud: 77%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
14:00

SSW
SSW

12 / 19 mph 35 / 26°F 84% 1011 mb
Low level cloud: 32%
Mid level cloud: 96%
High level cloud: 100%
Most Significant Cloud Type: medium
100%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
17:00

SW
SW

15 / 25 mph 37 / 28°F 85% 1010 mb
Low level cloud: 79%
Mid level cloud: 100%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
20:00

SW
SW

15 / 24 mph 35 / 25°F 99% 1010 mb
Low level cloud: 100%
Mid level cloud: 46%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.02 In of precipitation over the past 3 hours.
0.02 In
23:00

SW
SW

13 / 21 mph 35 / 26°F 100% 1010 mb
Low level cloud: 99%
Mid level cloud: 51%
High level cloud: 99%
Most Significant Cloud Type: low
100%
Expect 0.01 In of precipitation over the past 3 hours.
0.01 In
Mon 06
Feb
02:00

SW
SW

10 / 17 mph 34 / 26°F 100% 1011 mb
Low level cloud: 93%
Mid level cloud: 95%
High level cloud: 34%
Most Significant Cloud Type: low
100%
Expect 0.05 In of precipitation over the past 3 hours.
0.05 In
05:00

SW
SW

8 / 13 mph 33 / 26°F 100% 1013 mb
Low level cloud: 95%
Mid level cloud: 48%
High level cloud: 2%
Most Significant Cloud Type: low
100%
Expect 0.06 In of precipitation over the past 3 hours.
0.06 In
08:00

W
W

8 / 12 mph 33 / 27°F 99% 1015 mb
Low level cloud: 95%
Mid level cloud: 47%
High level cloud: 18%
Most Significant Cloud Type: low
100%
Expect 0.01 In of precipitation over the past 3 hours.
0.01 In
11:00

WNW
WNW

6 / 8 mph 33 / 28°F 99% 1018 mb
Low level cloud: 98%
Mid level cloud: 22%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.01 In of precipitation over the past 3 hours.
0.01 In
14:00

NW
NW

5 / 7 mph 33 / 27°F 98% 1021 mb
Low level cloud: 32%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: low
33%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
17:00

WNW
WNW

4 / 6 mph 32 / 28°F 90% 1023 mb
Low level cloud: 85%
Mid level cloud: 4%
High level cloud: 9%
Most Significant Cloud Type: low
87%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
20:00

W
W

4 / 9 mph 21 / 15°F 95% 1025 mb
Low level cloud: 64%
Mid level cloud: 0%
High level cloud: 3%
Most Significant Cloud Type: low
64%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
23:00

WSW
WSW

3 / 6 mph 15 / 11°F 98% 1025 mb
Low level cloud: 77%
Mid level cloud: 0%
High level cloud: 69%
Most Significant Cloud Type: low
85%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
Tue 07
Feb
02:00

W
W

1 / 2 mph 25 / 25°F 95% 1025 mb
Low level cloud: 88%
Mid level cloud: 0%
High level cloud: 46%
Most Significant Cloud Type: low
93%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
05:00

E
E

5 / 10 mph 22 / 15°F 97% 1023 mb
Low level cloud: 28%
Mid level cloud: 9%
High level cloud: 16%
Most Significant Cloud Type: low
33%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
08:00

E
E

3 / 7 mph 14 / 8°F 98% 1020 mb
Low level cloud: 1%
Mid level cloud: 70%
High level cloud: 100%
Most Significant Cloud Type: medium
77%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
11:00

SSE
SSE

7 / 14 mph 34 / 28°F 84% 1014 mb
Low level cloud: 0%
Mid level cloud: 100%
High level cloud: 21%
Most Significant Cloud Type: medium
100%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
14:00

SW
SW

17 / 33 mph 40 / 32°F 85% 1009 mb
Low level cloud: 88%
Mid level cloud: 98%
High level cloud: 33%
Most Significant Cloud Type: low
100%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
17:00

SSW
SSW

16 / 30 mph 39 / 31°F 90% 1007 mb
Low level cloud: 88%
Mid level cloud: 56%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.02 In of precipitation over the past 3 hours.
0.02 In
20:00

SSW
SSW

14 / 26 mph 39 / 31°F 97% 1005 mb
Low level cloud: 94%
Mid level cloud: 70%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.05 In of precipitation over the past 3 hours.
0.05 In
23:00

SSW
SSW

13 / 26 mph 40 / 32°F 100% 1002 mb
Low level cloud: 97%
Mid level cloud: 67%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.09 In of precipitation over the past 3 hours.
0.09 In
Wed 08
Feb
02:00

WSW
WSW

19 / 32 mph 37 / 26°F 96% 1002 mb
Low level cloud: 98%
Mid level cloud: 55%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.04 In of precipitation over the past 3 hours.
0.04 In
05:00

WSW
WSW

19 / 29 mph 35 / 24°F 83% 1004 mb
Low level cloud: 100%
Mid level cloud: 46%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.01 In of precipitation over the past 3 hours.
0.01 In
08:00

WSW
WSW

19 / 29 mph 34 / 22°F 82% 1005 mb
Low level cloud: 67%
Mid level cloud: 44%
High level cloud: 0%
Most Significant Cloud Type: low
81%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
11:00

WSW
WSW

17 / 23 mph 32 / 21°F 94% 1007 mb
Low level cloud: 79%
Mid level cloud: 62%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.01 In of precipitation over the past 3 hours.
0.01 In
14:00

W
W

16 / 22 mph 32 / 21°F 93% 1009 mb
Low level cloud: 77%
Mid level cloud: 99%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.04 In of precipitation over the past 3 hours.
0.04 In
17:00

WNW
WNW

19 / 26 mph 28 / 15°F 81% 1013 mb
Low level cloud: 73%
Mid level cloud: 43%
High level cloud: 0%
Most Significant Cloud Type: low
87%
Expect 0.01 In of precipitation over the past 3 hours.
0.01 In
20:00

WNW
WNW

15 / 23 mph 19 / 5°F 81% 1020 mb
Low level cloud: 100%
Mid level cloud: 7%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
23:00

W
W

11 / 17 mph 15 / 2°F 83% 1025 mb
Low level cloud: 84%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
83%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
DayLocal TimeDirSpeed/
Gust
Temp/
Feels Like
HumidityPressureCloud AmountPrecip AmountWeather
Thu 09
Feb
02:00

W
W

11 / 17 mph 11 / -3°F 83% 1026 mb
Low level cloud: 0%
Mid level cloud: 9%
High level cloud: 1%
Most Significant Cloud Type: medium
9%
0.00 In
08:00

W
W

6 / 9 mph 18 / 9°F 92% 1024 mb
Low level cloud: 76%
Mid level cloud: 58%
High level cloud: 0%
Most Significant Cloud Type: low
95%
0.00 In
14:00

W
W

6 / 8 mph 20 / 12°F 73% 1027 mb
Low level cloud: 5%
Mid level cloud: 44%
High level cloud: 8%
Most Significant Cloud Type: medium
56%
0.00 In
20:00

ENE
ENE

2 / 4 mph 18 / 18°F 95% 1023 mb
Low level cloud: 62%
Mid level cloud: 5%
High level cloud: 31%
Most Significant Cloud Type: low
67%
0.00 In
Fri 10
Feb
02:00

ENE
ENE

6 / 12 mph 12 / 3°F 94% 1024 mb
Low level cloud: 2%
Mid level cloud: 6%
High level cloud: 100%
Most Significant Cloud Type: medium
16%
0.00 In
08:00

NE
NE

7 / 12 mph 12 / 2°F 94% 1022 mb
Low level cloud: 20%
Mid level cloud: 100%
High level cloud: 97%
Most Significant Cloud Type: medium
100%
0.00 In
14:00

NE
NE

13 / 16 mph 21 / 9°F 93% 1009 mb
Low level cloud: 74%
Mid level cloud: 47%
High level cloud: 10%
Most Significant Cloud Type: low
91%
0.00 In
20:00

WSW
WSW

11 / 18 mph 37 / 29°F 98% 998 mb
Low level cloud: 97%
Mid level cloud: 57%
High level cloud: 0%
Most Significant Cloud Type: low
100%
0.00 In
Sat 11
Feb
02:00

N
N

5 / 8 mph 17 / 10°F 95% 1016 mb
Low level cloud: 82%
Mid level cloud: 100%
High level cloud: 100%
Most Significant Cloud Type: low
100%
0.03 In
08:00

WNW
WNW

11 / 16 mph 19 / 6°F 94% 1004 mb
Low level cloud: 75%
Mid level cloud: 100%
High level cloud: 5%
Most Significant Cloud Type: low
100%
0.20 In
14:00

NNW
NNW

3 / 4 mph 19 / 15°F 73% 1017 mb
Low level cloud: 13%
Mid level cloud: 100%
High level cloud: 8%
Most Significant Cloud Type: medium
100%
0.00 In
20:00

WNW
WNW

8 / 12 mph 10 / -2°F 86% 1017 mb
Low level cloud: 89%
Mid level cloud: 100%
High level cloud: 0%
Most Significant Cloud Type: low
100%
0.03 In
Sun 12
Feb
02:00

WNW
WNW

4 / 9 mph 2 / -7°F 95% 1021 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: medium
3%
0.00 In
08:00

WNW
WNW

4 / 6 mph -6 / -16°F 91% 1028 mb
Low level cloud: 7%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
7%
0.00 In
14:00

W
W

5 / 6 mph 14 / 6°F 74% 1027 mb
Low level cloud: 77%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: low
78%
0.00 In
20:00

ESE
ESE

3 / 6 mph 4 / -4°F 92% 1032 mb
Low level cloud: 1%
Mid level cloud: 13%
High level cloud: 14%
Most Significant Cloud Type: medium
16%
0.00 In
Mon 13
Feb
02:00

NE
NE

4 / 9 mph 3 / -7°F 97% 1028 mb
Low level cloud: 2%
Mid level cloud: 2%
High level cloud: 8%
Most Significant Cloud Type: low
3%
0.00 In
08:00

SE
SE

4 / 8 mph 19 / 13°F 83% 1025 mb
Low level cloud: 0%
Mid level cloud: 80%
High level cloud: 9%
Most Significant Cloud Type: medium
80%
0.00 In
14:00

ENE
ENE

9 / 12 mph 19 / 8°F 85% 1023 mb
Low level cloud: 3%
Mid level cloud: 84%
High level cloud: 0%
Most Significant Cloud Type: medium
92%
0.00 In
20:00

SW
SW

11 / 20 mph 32 / 24°F 73% 1021 mb
Low level cloud: 37%
Mid level cloud: 8%
High level cloud: 0%
Most Significant Cloud Type: low
39%
0.00 In
Tue 14
Feb
02:00

NE
NE

4 / 8 mph 18 / 12°F 98% 1019 mb
Low level cloud: 84%
Mid level cloud: 99%
High level cloud: 69%
Most Significant Cloud Type: low
100%
0.01 In
08:00

SW
SW

12 / 22 mph 33 / 24°F 80% 1021 mb
Low level cloud: 22%
Mid level cloud: 64%
High level cloud: 2%
Most Significant Cloud Type: medium
100%
0.00 In
14:00

NE
NE

7 / 9 mph 28 / 20°F 88% 1019 mb
Low level cloud: 100%
Mid level cloud: 32%
High level cloud: 100%
Most Significant Cloud Type: low
100%
0.01 In
20:00

WNW
WNW

11 / 14 mph 35 / 27°F 85% 1025 mb
Low level cloud: 8%
Mid level cloud: 2%
High level cloud: 0%
Most Significant Cloud Type: low
8%
0.01 In
Wed 15
Feb
02:00

SW
SW

1 / 2 mph 21 / 21°F 99% 1021 mb
Low level cloud: 100%
Mid level cloud: 24%
High level cloud: 0%
Most Significant Cloud Type: low
100%
0.02 In
08:00

ENE
ENE

8 / 13 mph 11 / 0°F 88% 1034 mb
Low level cloud: 3%
Mid level cloud: 2%
High level cloud: 0%
Most Significant Cloud Type: low
3%
0.00 In
14:00

W
W

7 / 9 mph 28 / 21°F 82% 1021 mb
Low level cloud: 65%
Mid level cloud: 2%
High level cloud: 2%
Most Significant Cloud Type: low
65%
0.00 In
20:00

NE
NE

7 / 12 mph 21 / 13°F 93% 1029 mb
Low level cloud: 32%
Mid level cloud: 100%
High level cloud: 32%
Most Significant Cloud Type: medium
100%
0.00 In
Thu 16
Feb
02:00

SSW
SSW

4 / 9 mph 22 / 17°F 91% 1016 mb
Low level cloud: 0%
Mid level cloud: 74%
High level cloud: 100%
Most Significant Cloud Type: medium
78%
0.00 In
08:00

SE
SE

4 / 9 mph 34 / 31°F 82% 1018 mb
Low level cloud: 0%
Mid level cloud: 62%
High level cloud: 100%
Most Significant Cloud Type: medium
66%
0.00 In
14:00

SW
SW

15 / 25 mph 35 / 26°F 100% 1005 mb
Low level cloud: 99%
Mid level cloud: 86%
High level cloud: 48%
Most Significant Cloud Type: low
100%
0.03 In
20:00

SSW
SSW

11 / 22 mph 44 / 38°F 90% 1010 mb
Low level cloud: 4%
Mid level cloud: 30%
High level cloud: 0%
Most Significant Cloud Type: medium
42%
0.03 In
Fri 17
Feb
02:00

SSE
SSE

3 / 7 mph 31 / 28°F 100% 1004 mb
Low level cloud: 100%
Mid level cloud: 30%
High level cloud: 33%
Most Significant Cloud Type: low
100%
0.04 In
08:00

WSW
WSW

9 / 18 mph 33 / 26°F 90% 1012 mb
Low level cloud: 60%
Mid level cloud: 4%
High level cloud: 2%
Most Significant Cloud Type: low
62%
0.01 In
14:00

SSW
SSW

2 / 2 mph 38 / 37°F 100% 988 mb
Low level cloud: 96%
Mid level cloud: 44%
High level cloud: 6%
Most Significant Cloud Type: low
100%
0.60 In
20:00

NW
NW

3 / 4 mph 37 / 35°F 88% 1022 mb
Low level cloud: 100%
Mid level cloud: 5%
High level cloud: 37%
Most Significant Cloud Type: low
100%
0.00 In

The day label given represents the local day relative to the local time for the location you are looking at.
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Day

This time is corrected for local time zones and where possible for daylight saving times.
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Local Time

The wind direction we use on this page is the direction the wind is coming from, given in a 16 point compass format.
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Dir

This refers to the sustained average wind speed, normally averaged over a period of 10 minutes for up to 3 hrs.
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Speed/
Gust

Temperature from our forecast perspective are fairly well defined, they are what we would expect to measure in a standard meteorological screen (in other words, shaded and well ventilated) at 2 metres above ground level.
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Temp/
Feels Like

The relative humidity is the percent of saturation humidity, generally calculated in relation to saturated vapour density.
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Humidity

The value given is a total predicted for the previous 3 hrs and includes the time of the forecast being looked at.
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Precip Amount

The total amount of cloud as a percentage is derived from looking at cloud cover throughout the atmosphere and estimating how these combine when looked at from the ground.
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Cloud Amount

Here we try to capture the feel of the weather as an image � it will never be perfect but is useful for a quick overview.
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Weather

When we measure for forecast air pressure we are normally doing this relative to a certain height and most commonly relative to Mean Sea Level.
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Pressure