Local Weather

Chiang Mai 14 Day Long Range Forecast

14 Day weather providing an extended long range forecast outlook for Chiang Mai

Thailand

Long range weather outlook for Chiang Mai includes 14 day forecast summary:

Taking a look at Chiang Mai over the coming two weeks and the average daytime maximum temperature will be around 32°C, with a high for the two weeks of 34°C expected on the afternoon of Sunday 15th. The average minimum temperature will be 22°C, dipping to its lowest on the morning of Sunday 15th at 21°C. Expect the following 14 days ahead to have some days seeing a little precipitation and some days with rain. It looks like Sunday 22nd will have the most precipitation with an accumulation of around 30.0mm. On the whole winds are likely to be light.

DayLocal TimeDirSpeed/
Gust
Temp/
Feels Like
HumidityPressureCloud AmountPrecip AmountWeather
Sun 15
Sep
19:00

WNW
WNW

4 / 8 km/h 24 / 27°C 91% 1003 mb
Low level cloud: 0%
Mid level cloud: 18%
High level cloud: 3%
Most Significant Cloud Type: medium
18%
Expect 1.4 mm of precipitation over the past 3 hours.
1.4 mm
22:00

WNW
WNW

3 / 7 km/h 23 / 25°C 94% 1006 mb
Low level cloud: 4%
Mid level cloud: 21%
High level cloud: 0%
Most Significant Cloud Type: medium
31%
Expect 0.0 mm of precipitation over the past 3 hours.
0.0 mm
Mon 16
Sep
01:00

WNW
WNW

3 / 6 km/h 22 / 25°C 95% 1005 mb
Low level cloud: 15%
Mid level cloud: 19%
High level cloud: 36%
Most Significant Cloud Type: low
25%
Expect 0.0 mm of precipitation over the past 3 hours.
0.0 mm
04:00

WNW
WNW

2 / 4 km/h 22 / 22°C 95% 1005 mb
Low level cloud: 26%
Mid level cloud: 22%
High level cloud: 9%
Most Significant Cloud Type: low
35%
Expect 0.0 mm of precipitation over the past 3 hours.
0.0 mm
07:00

WNW
WNW

1 / 2 km/h 24 / 25°C 93% 1007 mb
Low level cloud: 27%
Mid level cloud: 25%
High level cloud: 4%
Most Significant Cloud Type: low
36%
Expect 0.0 mm of precipitation over the past 3 hours.
0.0 mm
10:00

S
S

2 / 3 km/h 32 / 33°C 65% 1008 mb
Low level cloud: 7%
Mid level cloud: 32%
High level cloud: 10%
Most Significant Cloud Type: medium
50%
Expect 0.0 mm of precipitation over the past 3 hours.
0.0 mm
13:00

S
S

6 / 7 km/h 33 / 37°C 59% 1004 mb
Low level cloud: 6%
Mid level cloud: 20%
High level cloud: 3%
Most Significant Cloud Type: medium
36%
Expect 0.1 mm of precipitation over the past 3 hours.
0.1 mm
16:00

WSW
WSW

6 / 9 km/h 33 / 39°C 65% 1002 mb
Low level cloud: 0%
Mid level cloud: 19%
High level cloud: 7%
Most Significant Cloud Type: medium
18%
Expect 1.5 mm of precipitation over the past 3 hours.
1.5 mm
19:00

WNW
WNW

3 / 6 km/h 25 / 27°C 84% 1004 mb
Low level cloud: 0%
Mid level cloud: 20%
High level cloud: 81%
Most Significant Cloud Type: medium
22%
Expect 1.1 mm of precipitation over the past 3 hours.
1.1 mm
22:00

WNW
WNW

3 / 6 km/h 24 / 26°C 89% 1006 mb
Low level cloud: 0%
Mid level cloud: 27%
High level cloud: 19%
Most Significant Cloud Type: medium
27%
Expect 0.1 mm of precipitation over the past 3 hours.
0.1 mm
Tue 17
Sep
01:00

WNW
WNW

3 / 6 km/h 23 / 25°C 91% 1006 mb
Low level cloud: 7%
Mid level cloud: 23%
High level cloud: 32%
Most Significant Cloud Type: medium
44%
Expect 0.0 mm of precipitation over the past 3 hours.
0.0 mm
04:00

NW
NW

3 / 4 km/h 23 / 25°C 94% 1005 mb
Low level cloud: 20%
Mid level cloud: 24%
High level cloud: 16%
Most Significant Cloud Type: low
30%
Expect 0.0 mm of precipitation over the past 3 hours.
0.0 mm
07:00

NW
NW

2 / 3 km/h 25 / 25°C 92% 1007 mb
Low level cloud: 28%
Mid level cloud: 31%
High level cloud: 92%
Most Significant Cloud Type: low
50%
Expect 0.0 mm of precipitation over the past 3 hours.
0.0 mm
10:00

S
S

1 / 1 km/h 25 / 27°C 95% 1009 mb
Low level cloud: 61%
Mid level cloud: 50%
High level cloud: 100%
Most Significant Cloud Type: low
90%
Expect 2.3 mm of precipitation over the past 3 hours.
2.3 mm
13:00

WSW
WSW

3 / 3 km/h 27 / 28°C 95% 1006 mb
Low level cloud: 58%
Mid level cloud: 44%
High level cloud: 11%
Most Significant Cloud Type: low
74%
Expect 2.1 mm of precipitation over the past 3 hours.
2.1 mm
16:00

S
S

5 / 5 km/h 31 / 33°C 72% 1003 mb
Low level cloud: 24%
Mid level cloud: 20%
High level cloud: 4%
Most Significant Cloud Type: low
31%
Expect 0.1 mm of precipitation over the past 3 hours.
0.1 mm
19:00

S
S

4 / 6 km/h 25 / 27°C 93% 1004 mb
Low level cloud: 17%
Mid level cloud: 15%
High level cloud: 8%
Most Significant Cloud Type: low
22%
Expect 0.4 mm of precipitation over the past 3 hours.
0.4 mm
22:00

NNE
NNE

1 / 3 km/h 23 / 26°C 98% 1006 mb
Low level cloud: 47%
Mid level cloud: 23%
High level cloud: 45%
Most Significant Cloud Type: low
60%
Expect 2.8 mm of precipitation over the past 3 hours.
2.8 mm
Wed 18
Sep
01:00

NNW
NNW

3 / 5 km/h 22 / 25°C 99% 1005 mb
Low level cloud: 70%
Mid level cloud: 26%
High level cloud: 17%
Most Significant Cloud Type: low
80%
Expect 2.6 mm of precipitation over the past 3 hours.
2.6 mm
04:00

NNW
NNW

2 / 4 km/h 22 / 25°C 98% 1004 mb
Low level cloud: 67%
Mid level cloud: 43%
High level cloud: 100%
Most Significant Cloud Type: low
94%
Expect 0.5 mm of precipitation over the past 3 hours.
0.5 mm
07:00

N
N

2 / 3 km/h 23 / 25°C 98% 1006 mb
Low level cloud: 69%
Mid level cloud: 75%
High level cloud: 90%
Most Significant Cloud Type: low
100%
Expect 2.0 mm of precipitation over the past 3 hours.
2.0 mm
10:00

SW
SW

3 / 4 km/h 24 / 26°C 98% 1007 mb
Low level cloud: 77%
Mid level cloud: 45%
High level cloud: 21%
Most Significant Cloud Type: low
94%
Expect 1.2 mm of precipitation over the past 3 hours.
1.2 mm
13:00

S
S

6 / 7 km/h 32 / 35°C 69% 1004 mb
Low level cloud: 9%
Mid level cloud: 31%
High level cloud: 32%
Most Significant Cloud Type: medium
59%
Expect 0.3 mm of precipitation over the past 3 hours.
0.3 mm
16:00

SSE
SSE

5 / 6 km/h 31 / 35°C 81% 1002 mb
Low level cloud: 3%
Mid level cloud: 47%
High level cloud: 99%
Most Significant Cloud Type: medium
59%
Expect 1.0 mm of precipitation over the past 3 hours.
1.0 mm
19:00

SE
SE

0 / 0 km/h 25 / 28°C 89% 1003 mb
Low level cloud: 0%
Mid level cloud: 44%
High level cloud: 89%
Most Significant Cloud Type: medium
47%
Expect 2.1 mm of precipitation over the past 3 hours.
2.1 mm
22:00

WNW
WNW

2 / 4 km/h 24 / 26°C 92% 1005 mb
Low level cloud: 7%
Mid level cloud: 79%
High level cloud: 14%
Most Significant Cloud Type: medium
98%
Expect 0.4 mm of precipitation over the past 3 hours.
0.4 mm
Thu 19
Sep
01:00

WNW
WNW

3 / 6 km/h 23 / 26°C 93% 1004 mb
Low level cloud: 23%
Mid level cloud: 83%
High level cloud: 72%
Most Significant Cloud Type: medium
100%
Expect 0.0 mm of precipitation over the past 3 hours.
0.0 mm
04:00

WNW
WNW

3 / 5 km/h 23 / 25°C 98% 1003 mb
Low level cloud: 49%
Mid level cloud: 41%
High level cloud: 13%
Most Significant Cloud Type: low
65%
Expect 1.1 mm of precipitation over the past 3 hours.
1.1 mm
07:00

WNW
WNW

2 / 3 km/h 25 / 25°C 98% 1005 mb
Low level cloud: 55%
Mid level cloud: 43%
High level cloud: 33%
Most Significant Cloud Type: low
74%
Expect 0.9 mm of precipitation over the past 3 hours.
0.9 mm
10:00

S
S

3 / 4 km/h 29 / 33°C 79% 1007 mb
Low level cloud: 76%
Mid level cloud: 46%
High level cloud: 32%
Most Significant Cloud Type: low
95%
Expect 1.0 mm of precipitation over the past 3 hours.
1.0 mm
13:00

S
S

8 / 12 km/h 31 / 35°C 79% 1004 mb
Low level cloud: 44%
Mid level cloud: 32%
High level cloud: 28%
Most Significant Cloud Type: low
57%
Expect 2.4 mm of precipitation over the past 3 hours.
2.4 mm
16:00

S
S

8 / 12 km/h 31 / 34°C 75% 1002 mb
Low level cloud: 25%
Mid level cloud: 27%
High level cloud: 14%
Most Significant Cloud Type: low
36%
Expect 1.9 mm of precipitation over the past 3 hours.
1.9 mm
19:00

WSW
WSW

4 / 7 km/h 25 / 28°C 93% 1004 mb
Low level cloud: 10%
Mid level cloud: 20%
High level cloud: 0%
Most Significant Cloud Type: low
16%
Expect 0.6 mm of precipitation over the past 3 hours.
0.6 mm
22:00

WSW
WSW

1 / 2 km/h 23 / 26°C 96% 1006 mb
Low level cloud: 21%
Mid level cloud: 17%
High level cloud: 0%
Most Significant Cloud Type: low
26%
Expect 0.6 mm of precipitation over the past 3 hours.
0.6 mm
Fri 20
Sep
01:00

W
W

1 / 3 km/h 22 / 25°C 97% 1005 mb
Low level cloud: 46%
Mid level cloud: 15%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.0 mm of precipitation over the past 3 hours.
0.0 mm
04:00

NW
NW

2 / 4 km/h 22 / 22°C 98% 1004 mb
Low level cloud: 63%
Mid level cloud: 12%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.0 mm of precipitation over the past 3 hours.
0.0 mm
07:00

NW
NW

2 / 3 km/h 24 / 25°C 96% 1006 mb
Low level cloud: 67%
Mid level cloud: 10%
High level cloud: 0%
Most Significant Cloud Type: low
70%
Expect 0.0 mm of precipitation over the past 3 hours.
0.0 mm
10:00

SSE
SSE

3 / 3 km/h 30 / 32°C 75% 1006 mb
Low level cloud: 51%
Mid level cloud: 9%
High level cloud: 0%
Most Significant Cloud Type: low
53%
Expect 0.1 mm of precipitation over the past 3 hours.
0.1 mm
13:00

SE
SE

5 / 5 km/h 34 / 38°C 58% 1003 mb
Low level cloud: 0%
Mid level cloud: 9%
High level cloud: 0%
Most Significant Cloud Type: medium
8%
Expect 0.0 mm of precipitation over the past 3 hours.
0.0 mm
16:00

S
S

5 / 5 km/h 34 / 38°C 55% 1001 mb
Low level cloud: 0%
Mid level cloud: 9%
High level cloud: 0%
Most Significant Cloud Type: medium
8%
Expect 0.0 mm of precipitation over the past 3 hours.
0.0 mm
19:00

SW
SW

4 / 9 km/h 26 / 29°C 84% 1002 mb
Low level cloud: 0%
Mid level cloud: 15%
High level cloud: 11%
Most Significant Cloud Type: medium
15%
Expect 0.1 mm of precipitation over the past 3 hours.
0.1 mm
22:00

W
W

2 / 5 km/h 25 / 27°C 86% 1005 mb
Low level cloud: 0%
Mid level cloud: 27%
High level cloud: 6%
Most Significant Cloud Type: medium
26%
Expect 0.3 mm of precipitation over the past 3 hours.
0.3 mm
Sat 21
Sep
01:00

N
N

4 / 7 km/h 23 / 26°C 92% 1004 mb
Low level cloud: 11%
Mid level cloud: 43%
High level cloud: 38%
Most Significant Cloud Type: medium
76%
Expect 0.8 mm of precipitation over the past 3 hours.
0.8 mm
04:00

WSW
WSW

2 / 3 km/h 23 / 25°C 98% 1004 mb
Low level cloud: 49%
Mid level cloud: 58%
High level cloud: 21%
Most Significant Cloud Type: low
71%
Expect 2.1 mm of precipitation over the past 3 hours.
2.1 mm
07:00

WNW
WNW

1 / 3 km/h 25 / 25°C 98% 1005 mb
Low level cloud: 49%
Mid level cloud: 56%
High level cloud: 33%
Most Significant Cloud Type: low
72%
Expect 0.3 mm of precipitation over the past 3 hours.
0.3 mm
10:00

SW
SW

3 / 3 km/h 31 / 33°C 75% 1006 mb
Low level cloud: 33%
Mid level cloud: 29%
High level cloud: 25%
Most Significant Cloud Type: low
46%
Expect 0.1 mm of precipitation over the past 3 hours.
0.1 mm
13:00

S
S

6 / 8 km/h 34 / 38°C 60% 1003 mb
Low level cloud: 12%
Mid level cloud: 20%
High level cloud: 17%
Most Significant Cloud Type: low
21%
Expect 0.1 mm of precipitation over the past 3 hours.
0.1 mm
16:00

SW
SW

6 / 9 km/h 34 / 40°C 67% 1001 mb
Low level cloud: 1%
Mid level cloud: 44%
High level cloud: 20%
Most Significant Cloud Type: medium
47%
Expect 1.2 mm of precipitation over the past 3 hours.
1.2 mm
19:00

S
S

3 / 7 km/h 25 / 28°C 89% 1002 mb
Low level cloud: 0%
Mid level cloud: 45%
High level cloud: 33%
Most Significant Cloud Type: medium
46%
Expect 3.5 mm of precipitation over the past 3 hours.
3.5 mm
22:00

SSW
SSW

3 / 5 km/h 24 / 27°C 95% 1005 mb
Low level cloud: 15%
Mid level cloud: 52%
High level cloud: 35%
Most Significant Cloud Type: medium
95%
Expect 1.8 mm of precipitation over the past 3 hours.
1.8 mm
DayLocal TimeDirSpeed/
Gust
Temp/
Feels Like
HumidityPressureCloud AmountPrecip AmountWeather
Sun 22
Sep
01:00

NNW
NNW

2 / 4 km/h 25 / 28°C 97% 1006 mb
Low level cloud: 42%
Mid level cloud: 46%
High level cloud: 33%
Most Significant Cloud Type: low
100%
0.0 mm
07:00

NNE
NNE

1 / 3 km/h 24 / 27°C 96% 1006 mb
Low level cloud: 44%
Mid level cloud: 31%
High level cloud: 0%
Most Significant Cloud Type: low
54%
0.0 mm
13:00

ESE
ESE

2 / 4 km/h 37 / 47°C 52% 1003 mb
Low level cloud: 0%
Mid level cloud: 22%
High level cloud: 0%
Most Significant Cloud Type: medium
22%
0.0 mm
19:00

SSW
SSW

3 / 7 km/h 28 / 35°C 93% 1003 mb
Low level cloud: 0%
Mid level cloud: 15%
High level cloud: 4%
Most Significant Cloud Type: medium
14%
0.0 mm
Mon 23
Sep
01:00

NW
NW

3 / 5 km/h 25 / 28°C 96% 1005 mb
Low level cloud: 28%
Mid level cloud: 20%
High level cloud: 0%
Most Significant Cloud Type: low
34%
0.0 mm
07:00

NE
NE

1 / 2 km/h 24 / 27°C 97% 1005 mb
Low level cloud: 60%
Mid level cloud: 33%
High level cloud: 0%
Most Significant Cloud Type: low
100%
0.0 mm
13:00

SSW
SSW

3 / 5 km/h 34 / 46°C 74% 1002 mb
Low level cloud: 12%
Mid level cloud: 19%
High level cloud: 0%
Most Significant Cloud Type: low
19%
0.0 mm
19:00

SSW
SSW

5 / 10 km/h 25 / 28°C 95% 1003 mb
Low level cloud: 0%
Mid level cloud: 46%
High level cloud: 21%
Most Significant Cloud Type: medium
47%
0.0 mm
Tue 24
Sep
01:00

NNW
NNW

1 / 2 km/h 24 / 27°C 98% 1005 mb
Low level cloud: 62%
Mid level cloud: 56%
High level cloud: 19%
Most Significant Cloud Type: low
100%
0.0 mm
07:00

NNW
NNW

1 / 3 km/h 24 / 26°C 98% 1006 mb
Low level cloud: 95%
Mid level cloud: 49%
High level cloud: 0%
Most Significant Cloud Type: low
100%
2.5 mm
13:00

S
S

3 / 6 km/h 28 / 35°C 89% 1004 mb
Low level cloud: 43%
Mid level cloud: 50%
High level cloud: 19%
Most Significant Cloud Type: low
62%
3.5 mm
19:00

SW
SW

3 / 7 km/h 25 / 27°C 92% 1005 mb
Low level cloud: 0%
Mid level cloud: 31%
High level cloud: 3%
Most Significant Cloud Type: medium
30%
8.2 mm
Wed 25
Sep
01:00

NNE
NNE

1 / 1 km/h 24 / 26°C 97% 1006 mb
Low level cloud: 67%
Mid level cloud: 45%
High level cloud: 6%
Most Significant Cloud Type: low
83%
10.2 mm
07:00

NNW
NNW

1 / 2 km/h 23 / 26°C 97% 1009 mb
Low level cloud: 68%
Mid level cloud: 30%
High level cloud: 0%
Most Significant Cloud Type: low
78%
1.8 mm
13:00

S
S

7 / 14 km/h 32 / 38°C 67% 1005 mb
Low level cloud: 61%
Mid level cloud: 27%
High level cloud: 0%
Most Significant Cloud Type: low
70%
1.0 mm
19:00

WSW
WSW

3 / 6 km/h 27 / 33°C 93% 1007 mb
Low level cloud: 0%
Mid level cloud: 12%
High level cloud: 0%
Most Significant Cloud Type: medium
11%
2.9 mm
Thu 26
Sep
01:00

E
E

1 / 3 km/h 24 / 28°C 97% 1007 mb
Low level cloud: 39%
Mid level cloud: 25%
High level cloud: 3%
Most Significant Cloud Type: low
48%
8.8 mm
07:00

NNW
NNW

2 / 4 km/h 23 / 26°C 97% 1010 mb
Low level cloud: 54%
Mid level cloud: 44%
High level cloud: 0%
Most Significant Cloud Type: low
68%
3.1 mm
13:00

SSE
SSE

6 / 13 km/h 32 / 39°C 65% 1006 mb
Low level cloud: 66%
Mid level cloud: 18%
High level cloud: 0%
Most Significant Cloud Type: low
72%
3.5 mm
19:00

SW
SW

4 / 9 km/h 28 / 33°C 87% 1007 mb
Low level cloud: 0%
Mid level cloud: 7%
High level cloud: 17%
Most Significant Cloud Type: medium
7%
1.0 mm
Fri 27
Sep
01:00

NW
NW

2 / 4 km/h 24 / 26°C 97% 1009 mb
Low level cloud: 30%
Mid level cloud: 15%
High level cloud: 0%
Most Significant Cloud Type: low
35%
5.5 mm
07:00

NNW
NNW

3 / 5 km/h 24 / 26°C 93% 1010 mb
Low level cloud: 40%
Mid level cloud: 9%
High level cloud: 0%
Most Significant Cloud Type: low
43%
0.0 mm
13:00

SSE
SSE

6 / 12 km/h 34 / 43°C 59% 1007 mb
Low level cloud: 0%
Mid level cloud: 13%
High level cloud: 1%
Most Significant Cloud Type: medium
12%
0.1 mm
19:00

SW
SW

3 / 7 km/h 29 / 34°C 80% 1005 mb
Low level cloud: 0%
Mid level cloud: 9%
High level cloud: 33%
Most Significant Cloud Type: medium
9%
0.1 mm
Sat 28
Sep
01:00

NNW
NNW

3 / 7 km/h 25 / 29°C 96% 1009 mb
Low level cloud: 16%
Mid level cloud: 11%
High level cloud: 3%
Most Significant Cloud Type: low
19%
2.1 mm
07:00

NW
NW

3 / 6 km/h 22 / 25°C 87% 1008 mb
Low level cloud: 1%
Mid level cloud: 76%
High level cloud: 12%
Most Significant Cloud Type: medium
79%
0.2 mm
13:00

NE
NE

2 / 4 km/h 29 / 35°C 77% 1008 mb
Low level cloud: 2%
Mid level cloud: 46%
High level cloud: 19%
Most Significant Cloud Type: medium
52%
0.2 mm
19:00

NE
NE

1 / 1 km/h 26 / 28°C 73% 1006 mb
Low level cloud: 0%
Mid level cloud: 45%
High level cloud: 10%
Most Significant Cloud Type: medium
45%
0.0 mm
Sun 29
Sep
01:00

SSW
SSW

4 / 7 km/h 24 / 27°C 98% 1008 mb
Low level cloud: 52%
Mid level cloud: 66%
High level cloud: 32%
Most Significant Cloud Type: low
79%
5.6 mm
07:00

NNW
NNW

2 / 4 km/h 24 / 26°C 80% 1009 mb
Low level cloud: 0%
Mid level cloud: 66%
High level cloud: 3%
Most Significant Cloud Type: medium
65%
0.0 mm
13:00

SSE
SSE

1 / 2 km/h 24 / 26°C 94% 1009 mb
Low level cloud: 74%
Mid level cloud: 85%
High level cloud: 6%
Most Significant Cloud Type: low
100%
10.8 mm
19:00

S
S

4 / 8 km/h 27 / 31°C 80% 1007 mb
Low level cloud: 0%
Mid level cloud: 30%
High level cloud: 6%
Most Significant Cloud Type: medium
29%
0.3 mm
Mon 30
Sep
01:00

NNW
NNW

1 / 3 km/h 23 / 25°C 97% 1010 mb
Low level cloud: 55%
Mid level cloud: 96%
High level cloud: 0%
Most Significant Cloud Type: low
88%
1.2 mm
07:00

NNW
NNW

1 / 3 km/h 24 / 26°C 97% 1011 mb
Low level cloud: 53%
Mid level cloud: 46%
High level cloud: 1%
Most Significant Cloud Type: low
69%
2.4 mm
13:00

SSE
SSE

3 / 6 km/h 29 / 36°C 80% 1008 mb
Low level cloud: 30%
Mid level cloud: 43%
High level cloud: 0%
Most Significant Cloud Type: low
45%
2.2 mm
19:00

S
S

2 / 5 km/h 28 / 34°C 92% 1009 mb
Low level cloud: 0%
Mid level cloud: 20%
High level cloud: 10%
Most Significant Cloud Type: medium
20%
7.2 mm

Other Locations Near to Chiang Mai

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