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Knocks 14 Day Long Range Forecast

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

Laois, Ireland

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

The next 14 day outlook for Knocks shows the average daytime maximum temperature will be around 9°C, with a high for the two weeks of 12°C expected on the evening of Sunday 24th. The average minimum temperature will be 4°C, dipping to its lowest on the morning of Saturday 30th at -1°C. The coming 14 days will have some days seeing a little precipitation and some days with rain. The indicators are that Thursday 21st will have the most precipitation with an accumulation of around 24.0mm. On the whole winds are likely to be moderate.

DayLocal TimeDirSpeed/
Gust
Temp/
Feels Like
HumidityPressureCloud AmountPrecip AmountWeather
Wed 20
Nov
15:00

SSE
SSE

10 / 14 mph 48 / 43°F 95% 999 mb
Low level cloud: 92%
Mid level cloud: 55%
High level cloud: 16%
Most Significant Cloud Type: low
100%
Expect 0.15 In of precipitation over the past 3 hours.
0.15 In
18:00

SE
SE

21 / 26 mph 47 / 39°F 90% 998 mb
Low level cloud: 97%
Mid level cloud: 56%
High level cloud: 16%
Most Significant Cloud Type: low
100%
Expect 0.15 In of precipitation over the past 3 hours.
0.15 In
21:00

SE
SE

19 / 22 mph 46 / 38°F 87% 998 mb
Low level cloud: 99%
Mid level cloud: 44%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
Thu 21
Nov
00:00

ESE
ESE

18 / 30 mph 43 / 35°F 91% 998 mb
Low level cloud: 88%
Mid level cloud: 92%
High level cloud: 95%
Most Significant Cloud Type: low
100%
Expect 0.04 In of precipitation over the past 3 hours.
0.04 In
03:00

SE
SE

14 / 28 mph 42 / 35°F 95% 997 mb
Low level cloud: 97%
Mid level cloud: 100%
High level cloud: 87%
Most Significant Cloud Type: low
100%
Expect 0.09 In of precipitation over the past 3 hours.
0.09 In
06:00

SE
SE

10 / 20 mph 42 / 36°F 96% 997 mb
Low level cloud: 78%
Mid level cloud: 99%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.09 In of precipitation over the past 3 hours.
0.09 In
09:00

ESE
ESE

10 / 18 mph 44 / 38°F 96% 998 mb
Low level cloud: 91%
Mid level cloud: 85%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.08 In of precipitation over the past 3 hours.
0.08 In
12:00

ESE
ESE

13 / 16 mph 45 / 39°F 94% 997 mb
Low level cloud: 96%
Mid level cloud: 94%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.14 In of precipitation over the past 3 hours.
0.14 In
15:00

E
E

11 / 12 mph 46 / 41°F 96% 996 mb
Low level cloud: 99%
Mid level cloud: 100%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.16 In of precipitation over the past 3 hours.
0.16 In
18:00

E
E

9 / 12 mph 45 / 40°F 96% 995 mb
Low level cloud: 99%
Mid level cloud: 100%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.29 In of precipitation over the past 3 hours.
0.29 In
21:00

ENE
ENE

6 / 9 mph 44 / 41°F 97% 994 mb
Low level cloud: 85%
Mid level cloud: 100%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.05 In of precipitation over the past 3 hours.
0.05 In
Fri 22
Nov
00:00

E
E

4 / 7 mph 42 / 40°F 98% 993 mb
Low level cloud: 57%
Mid level cloud: 100%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.01 In of precipitation over the past 3 hours.
0.01 In
03:00

ENE
ENE

4 / 7 mph 42 / 40°F 97% 992 mb
Low level cloud: 48%
Mid level cloud: 100%
High level cloud: 100%
Most Significant Cloud Type: low
94%
Expect 0.02 In of precipitation over the past 3 hours.
0.02 In
06:00

NE
NE

6 / 10 mph 43 / 39°F 96% 991 mb
Low level cloud: 95%
Mid level cloud: 100%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.01 In of precipitation over the past 3 hours.
0.01 In
09:00

NE
NE

6 / 9 mph 43 / 39°F 97% 991 mb
Low level cloud: 62%
Mid level cloud: 100%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.06 In of precipitation over the past 3 hours.
0.06 In
12:00

ENE
ENE

4 / 6 mph 47 / 46°F 87% 991 mb
Low level cloud: 0%
Mid level cloud: 100%
High level cloud: 100%
Most Significant Cloud Type: medium
100%
Expect 0.04 In of precipitation over the past 3 hours.
0.04 In
15:00

S
S

5 / 7 mph 46 / 44°F 91% 991 mb
Low level cloud: 4%
Mid level cloud: 28%
High level cloud: 0%
Most Significant Cloud Type: medium
39%
Expect 0.03 In of precipitation over the past 3 hours.
0.03 In
18:00

SSE
SSE

4 / 7 mph 39 / 37°F 95% 993 mb
Low level cloud: 24%
Mid level cloud: 3%
High level cloud: 6%
Most Significant Cloud Type: low
25%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
21:00

ESE
ESE

1 / 3 mph 38 / 38°F 95% 995 mb
Low level cloud: 13%
Mid level cloud: 100%
High level cloud: 99%
Most Significant Cloud Type: medium
100%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
Sat 23
Nov
00:00

ENE
ENE

5 / 8 mph 40 / 37°F 93% 996 mb
Low level cloud: 58%
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
03:00

NNE
NNE

9 / 13 mph 41 / 36°F 96% 997 mb
Low level cloud: 89%
Mid level cloud: 100%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.13 In of precipitation over the past 3 hours.
0.13 In
06:00

N
N

7 / 12 mph 42 / 37°F 98% 999 mb
Low level cloud: 89%
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
09:00

NNE
NNE

10 / 17 mph 44 / 38°F 96% 1001 mb
Low level cloud: 46%
Mid level cloud: 100%
High level cloud: 100%
Most Significant Cloud Type: low
93%
Expect 0.01 In of precipitation over the past 3 hours.
0.01 In
12:00

NNE
NNE

13 / 18 mph 47 / 42°F 90% 1002 mb
Low level cloud: 70%
Mid level cloud: 44%
High level cloud: 20%
Most Significant Cloud Type: low
87%
Expect 0.01 In of precipitation over the past 3 hours.
0.01 In
15:00

NNE
NNE

9 / 13 mph 46 / 41°F 96% 1002 mb
Low level cloud: 98%
Mid level cloud: 73%
High level cloud: 3%
Most Significant Cloud Type: low
100%
Expect 0.03 In of precipitation over the past 3 hours.
0.03 In
18:00

NNE
NNE

8 / 12 mph 45 / 41°F 97% 1004 mb
Low level cloud: 97%
Mid level cloud: 44%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.04 In of precipitation over the past 3 hours.
0.04 In
21:00

N
N

6 / 9 mph 44 / 40°F 97% 1004 mb
Low level cloud: 86%
Mid level cloud: 47%
High level cloud: 5%
Most Significant Cloud Type: low
100%
Expect 0.01 In of precipitation over the past 3 hours.
0.01 In
Sun 24
Nov
00:00

N
N

3 / 6 mph 43 / 41°F 99% 1004 mb
Low level cloud: 88%
Mid level cloud: 44%
High level cloud: 32%
Most Significant Cloud Type: low
100%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
03:00

WSW
WSW

1 / 2 mph 40 / 40°F 99% 1003 mb
Low level cloud: 88%
Mid level cloud: 31%
High level cloud: 32%
Most Significant Cloud Type: low
100%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
06:00

SSE
SSE

4 / 7 mph 42 / 40°F 98% 1003 mb
Low level cloud: 84%
Mid level cloud: 45%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
09:00

SSE
SSE

6 / 11 mph 41 / 37°F 98% 1002 mb
Low level cloud: 61%
Mid level cloud: 63%
High level cloud: 71%
Most Significant Cloud Type: low
100%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
12:00

SSE
SSE

14 / 21 mph 45 / 39°F 94% 999 mb
Low level cloud: 65%
Mid level cloud: 87%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.07 In of precipitation over the past 3 hours.
0.07 In
15:00

SSE
SSE

19 / 29 mph 48 / 41°F 94% 995 mb
Low level cloud: 92%
Mid level cloud: 44%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.07 In of precipitation over the past 3 hours.
0.07 In
18:00

SSE
SSE

17 / 26 mph 52 / 47°F 96% 992 mb
Low level cloud: 99%
Mid level cloud: 99%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.18 In of precipitation over the past 3 hours.
0.18 In
21:00

S
S

12 / 19 mph 53 / 49°F 96% 992 mb
Low level cloud: 68%
Mid level cloud: 28%
High level cloud: 0%
Most Significant Cloud Type: low
77%
Expect 0.17 In of precipitation over the past 3 hours.
0.17 In
Mon 25
Nov
00:00

SSW
SSW

11 / 18 mph 48 / 44°F 95% 992 mb
Low level cloud: 50%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: low
51%
Expect 0.01 In of precipitation over the past 3 hours.
0.01 In
03:00

SSW
SSW

13 / 22 mph 47 / 41°F 92% 992 mb
Low level cloud: 21%
Mid level cloud: 32%
High level cloud: 0%
Most Significant Cloud Type: low
31%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
06:00

SSW
SSW

14 / 23 mph 45 / 38°F 92% 993 mb
Low level cloud: 52%
Mid level cloud: 30%
High level cloud: 0%
Most Significant Cloud Type: low
61%
Expect 0.01 In of precipitation over the past 3 hours.
0.01 In
09:00

SSW
SSW

15 / 25 mph 45 / 38°F 89% 994 mb
Low level cloud: 84%
Mid level cloud: 56%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
12:00

SW
SW

16 / 25 mph 49 / 44°F 89% 995 mb
Low level cloud: 91%
Mid level cloud: 77%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.01 In of precipitation over the past 3 hours.
0.01 In
15:00

WSW
WSW

17 / 25 mph 50 / 44°F 86% 998 mb
Low level cloud: 68%
Mid level cloud: 46%
High level cloud: 1%
Most Significant Cloud Type: low
83%
Expect 0.01 In of precipitation over the past 3 hours.
0.01 In
18:00

WSW
WSW

14 / 21 mph 48 / 43°F 89% 1000 mb
Low level cloud: 86%
Mid level cloud: 12%
High level cloud: 1%
Most Significant Cloud Type: low
90%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
21:00

SW
SW

13 / 19 mph 47 / 42°F 91% 1003 mb
Low level cloud: 87%
Mid level cloud: 6%
High level cloud: 10%
Most Significant Cloud Type: low
90%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
Tue 26
Nov
00:00

SW
SW

12 / 18 mph 47 / 42°F 89% 1004 mb
Low level cloud: 66%
Mid level cloud: 13%
High level cloud: 94%
Most Significant Cloud Type: low
81%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
03:00

SSW
SSW

8 / 15 mph 42 / 37°F 92% 1003 mb
Low level cloud: 14%
Mid level cloud: 75%
High level cloud: 100%
Most Significant Cloud Type: medium
100%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
06:00

S
S

10 / 16 mph 45 / 41°F 95% 1001 mb
Low level cloud: 73%
Mid level cloud: 70%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
09:00

SSE
SSE

9 / 16 mph 49 / 44°F 95% 999 mb
Low level cloud: 37%
Mid level cloud: 55%
High level cloud: 100%
Most Significant Cloud Type: low
68%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
12:00

S
S

15 / 21 mph 52 / 48°F 86% 997 mb
Low level cloud: 54%
Mid level cloud: 85%
High level cloud: 100%
Most Significant Cloud Type: low
95%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
15:00

SSE
SSE

13 / 20 mph 51 / 47°F 95% 994 mb
Low level cloud: 95%
Mid level cloud: 100%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.08 In of precipitation over the past 3 hours.
0.08 In
18:00

SSE
SSE

14 / 20 mph 52 / 47°F 95% 991 mb
Low level cloud: 98%
Mid level cloud: 20%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.06 In of precipitation over the past 3 hours.
0.06 In
21:00

SSW
SSW

11 / 17 mph 48 / 44°F 95% 991 mb
Low level cloud: 55%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
54%
Expect 0.01 In of precipitation over the past 3 hours.
0.01 In
DayLocal TimeDirSpeed/
Gust
Temp/
Feels Like
HumidityPressureCloud AmountPrecip AmountWeather
Wed 27
Nov
00:00

WNW
WNW

8 / 14 mph 46 / 42°F 93% 990 mb
Low level cloud: 79%
Mid level cloud: 45%
High level cloud: 12%
Most Significant Cloud Type: low
96%
0.06 In
06:00

SW
SW

6 / 12 mph 40 / 35°F 96% 1005 mb
Low level cloud: 59%
Mid level cloud: 45%
High level cloud: 4%
Most Significant Cloud Type: low
75%
0.00 In
12:00

W
W

13 / 18 mph 47 / 42°F 82% 997 mb
Low level cloud: 17%
Mid level cloud: 28%
High level cloud: 0%
Most Significant Cloud Type: low
27%
0.04 In
18:00

WSW
WSW

14 / 21 mph 46 / 40°F 91% 990 mb
Low level cloud: 83%
Mid level cloud: 41%
High level cloud: 16%
Most Significant Cloud Type: low
98%
0.01 In
Thu 28
Nov
00:00

WSW
WSW

2 / 3 mph 44 / 44°F 98% 991 mb
Low level cloud: 92%
Mid level cloud: 55%
High level cloud: 32%
Most Significant Cloud Type: low
100%
0.02 In
06:00

S
S

4 / 8 mph 44 / 42°F 98% 998 mb
Low level cloud: 68%
Mid level cloud: 20%
High level cloud: 0%
Most Significant Cloud Type: low
100%
0.00 In
12:00

SW
SW

17 / 23 mph 47 / 41°F 89% 986 mb
Low level cloud: 88%
Mid level cloud: 56%
High level cloud: 33%
Most Significant Cloud Type: low
100%
0.02 In
18:00

NW
NW

9 / 12 mph 47 / 43°F 94% 986 mb
Low level cloud: 52%
Mid level cloud: 29%
High level cloud: 11%
Most Significant Cloud Type: low
63%
0.01 In
Fri 29
Nov
00:00

WNW
WNW

10 / 16 mph 43 / 38°F 95% 993 mb
Low level cloud: 56%
Mid level cloud: 87%
High level cloud: 11%
Most Significant Cloud Type: low
88%
0.07 In
06:00

NW
NW

8 / 14 mph 39 / 34°F 97% 998 mb
Low level cloud: 46%
Mid level cloud: 44%
High level cloud: 3%
Most Significant Cloud Type: low
62%
0.00 In
12:00

WNW
WNW

8 / 12 mph 45 / 40°F 92% 1006 mb
Low level cloud: 84%
Mid level cloud: 43%
High level cloud: 0%
Most Significant Cloud Type: low
99%
0.01 In
18:00

NW
NW

5 / 10 mph 34 / 30°F 91% 1007 mb
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 0%
Most Significant Cloud Type: medium
2%
0.00 In
Sat 30
Nov
00:00

N
N

3 / 5 mph 36 / 34°F 93% 1011 mb
Low level cloud: 3%
Mid level cloud: 0%
High level cloud: 63%
Most Significant Cloud Type: medium
10%
0.00 In
06:00

ENE
ENE

10 / 18 mph 35 / 27°F 83% 1007 mb
Low level cloud: 5%
Mid level cloud: 44%
High level cloud: 100%
Most Significant Cloud Type: medium
60%
0.00 In
12:00

N
N

10 / 14 mph 40 / 34°F 89% 1011 mb
Low level cloud: 97%
Mid level cloud: 8%
High level cloud: 59%
Most Significant Cloud Type: low
100%
0.01 In
18:00

ESE
ESE

17 / 28 mph 45 / 38°F 96% 988 mb
Low level cloud: 82%
Mid level cloud: 96%
High level cloud: 99%
Most Significant Cloud Type: low
100%
0.29 In
Sun 01
Dec
00:00

WNW
WNW

4 / 9 mph 31 / 26°F 93% 1019 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.00 In
06:00

W
W

15 / 22 mph 46 / 39°F 93% 986 mb
Low level cloud: 86%
Mid level cloud: 43%
High level cloud: 0%
Most Significant Cloud Type: low
100%
0.03 In
12:00

WSW
WSW

9 / 13 mph 42 / 37°F 80% 1024 mb
Low level cloud: 0%
Mid level cloud: 1%
High level cloud: 100%
Most Significant Cloud Type: high
99%
0.00 In
18:00

W
W

14 / 23 mph 40 / 33°F 88% 1000 mb
Low level cloud: 51%
Mid level cloud: 31%
High level cloud: 0%
Most Significant Cloud Type: low
61%
0.09 In
Mon 02
Dec
00:00

SSW
SSW

11 / 20 mph 41 / 35°F 95% 1023 mb
Low level cloud: 41%
Mid level cloud: 46%
High level cloud: 100%
Most Significant Cloud Type: low
69%
0.00 In
06:00

W
W

12 / 24 mph 37 / 29°F 86% 1010 mb
Low level cloud: 9%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: low
10%
0.00 In
12:00

SW
SW

19 / 30 mph 52 / 46°F 94% 1013 mb
Low level cloud: 100%
Mid level cloud: 73%
High level cloud: 81%
Most Significant Cloud Type: low
100%
0.15 In
18:00

W
W

7 / 9 mph 43 / 39°F 88% 1016 mb
Low level cloud: 0%
Mid level cloud: 1%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.01 In
Tue 03
Dec
00:00

WSW
WSW

16 / 26 mph 56 / 53°F 91% 1014 mb
Low level cloud: 88%
Mid level cloud: 19%
High level cloud: 77%
Most Significant Cloud Type: low
100%
0.01 In
06:00

WSW
WSW

6 / 10 mph 38 / 33°F 94% 1010 mb
Low level cloud: 22%
Mid level cloud: 2%
High level cloud: 0%
Most Significant Cloud Type: low
22%
0.13 In
12:00

WSW
WSW

13 / 20 mph 57 / 54°F 90% 1017 mb
Low level cloud: 88%
Mid level cloud: 7%
High level cloud: 95%
Most Significant Cloud Type: low
100%
0.00 In
18:00

NNE
NNE

5 / 10 mph 35 / 31°F 94% 1015 mb
Low level cloud: 10%
Mid level cloud: 0%
High level cloud: 100%
Most Significant Cloud Type: medium
31%
0.00 In
Wed 04
Dec
00:00

SSW
SSW

12 / 19 mph 50 / 45°F 89% 1016 mb
Low level cloud: 55%
Mid level cloud: 10%
High level cloud: 0%
Most Significant Cloud Type: low
58%
0.00 In
06:00

NE
NE

5 / 11 mph 34 / 29°F 95% 1013 mb
Low level cloud: 9%
Mid level cloud: 4%
High level cloud: 100%
Most Significant Cloud Type: medium
32%
0.00 In
12:00

SSW
SSW

13 / 23 mph 54 / 50°F 87% 1016 mb
Low level cloud: 45%
Mid level cloud: 0%
High level cloud: 18%
Most Significant Cloud Type: low
47%
0.01 In
18:00

NE
NE

13 / 18 mph 39 / 31°F 89% 1003 mb
Low level cloud: 22%
Mid level cloud: 77%
High level cloud: 100%
Most Significant Cloud Type: medium
100%
0.03 In
Thu 05
Dec
00:00

SSW
SSW

16 / 31 mph 50 / 45°F 89% 1013 mb
Low level cloud: 69%
Mid level cloud: 0%
High level cloud: 100%
Most Significant Cloud Type: low
81%
0.00 In
06:00

NE
NE

20 / 42 mph 34 / 23°F 97% 991 mb
Low level cloud: 99%
Mid level cloud: 100%
High level cloud: 100%
Most Significant Cloud Type: low
100%
0.57 In
12:00

SSW
SSW

12 / 19 mph 54 / 51°F 87% 1010 mb
Low level cloud: 50%
Mid level cloud: 91%
High level cloud: 91%
Most Significant Cloud Type: low
92%
0.00 In
18:00

NNE
NNE

22 / 25 mph 40 / 29°F 91% 995 mb
Low level cloud: 69%
Mid level cloud: 46%
High level cloud: 0%
Most Significant Cloud Type: low
84%
0.10 In

Other Locations Near to Knocks

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.
(More Info)

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