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Mexico 14 Day Long Range Forecast

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

Missouri, United States Of America

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

The forecast for Mexico in the coming two weeks is predicting the average daytime maximum temperature will be around 26°C, with a high for the two weeks of 30°C expected on the afternoon of Tuesday 21st. The average minimum temperature will be 16°C, dipping to its lowest on the morning of Thursday 23rd at 10°C. The fortnight ahead will have some days seeing a little precipitation and some days with rain. Predictions are Sunday 26th will have the most precipitation with an accumulation of around 13.0mm. On the whole winds are likely to be moderate.

DayLocal TimeDirSpeed/
Gust		Temp/
Feels Like		HumidityPressureCloud AmountPrecip AmountWeather
Fri 17
May		00:00

W
W

 4 / 9 mph 61 / 61°F 92% 1009 mb
Low level cloud: 0%
Mid level cloud: 16%
High level cloud: 22%
Most Significant Cloud Type: medium
16%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

SSW
SSW

 5 / 11 mph 59 / 59°F 95% 1008 mb
Low level cloud: 7%
Mid level cloud: 15%
High level cloud: 17%
Most Significant Cloud Type: low
14%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

WSW
WSW

 2 / 4 mph 63 / 60°F 94% 1009 mb
Low level cloud: 18%
Mid level cloud: 12%
High level cloud: 2%
Most Significant Cloud Type: low
22%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

ESE
ESE

 3 / 4 mph 74 / 76°F 77% 1009 mb
Low level cloud: 4%
Mid level cloud: 8%
High level cloud: 0%
Most Significant Cloud Type: low
7%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

SE
SE

 5 / 6 mph 79 / 78°F 64% 1008 mb
Low level cloud: 69%
Mid level cloud: 6%
High level cloud: 0%
Most Significant Cloud Type: low
70%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

S
S

 1 / 2 mph 81 / 79°F 62% 1007 mb
Low level cloud: 54%
Mid level cloud: 12%
High level cloud: 5%
Most Significant Cloud Type: low
58%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
18:00

ENE
ENE

 2 / 2 mph 78 / 78°F 75% 1007 mb
Low level cloud: 1%
Mid level cloud: 6%
High level cloud: 0%
Most Significant Cloud Type: medium
7%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

SE
SE

 6 / 12 mph 64 / 64°F 88% 1008 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: medium
4%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sat 18
May		15:00

WSW
WSW

 6 / 7 mph 84 / 83°F 58% 1010 mb
Low level cloud: 19%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: low
20%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

W
W

 4 / 6 mph 81 / 82°F 74% 1011 mb
Low level cloud: 4%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: low
4%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

SW
SW

 2 / 5 mph 72 / 76°F 84% 1012 mb
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 0%
Most Significant Cloud Type: medium
2%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sun 19
May		00:00

S
S

 4 / 9 mph 68 / 68°F 85% 1013 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: medium
4%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

SSW
SSW

 4 / 9 mph 65 / 65°F 91% 1014 mb
Low level cloud: 0%
Mid level cloud: 7%
High level cloud: 0%
Most Significant Cloud Type: medium
7%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

SSW
SSW

 2 / 4 mph 69 / 66°F 90% 1015 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 72%
Most Significant Cloud Type: medium
6%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

SSE
SSE

 6 / 8 mph 78 / 78°F 75% 1014 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 9%
Most Significant Cloud Type: medium
3%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

SSE
SSE

 9 / 10 mph 83 / 84°F 62% 1013 mb
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 5%
Most Significant Cloud Type: medium
1%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

SW
SW

 9 / 11 mph 85 / 86°F 59% 1012 mb
Low level cloud: 0%
Mid level cloud: 7%
High level cloud: 3%
Most Significant Cloud Type: medium
7%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

SE
SE

 4 / 6 mph 83 / 84°F 73% 1010 mb
Low level cloud: 0%
Mid level cloud: 15%
High level cloud: 1%
Most Significant Cloud Type: medium
14%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

SE
SE

 11 / 23 mph 70 / 70°F 87% 1010 mb
Low level cloud: 0%
Mid level cloud: 16%
High level cloud: 0%
Most Significant Cloud Type: medium
15%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Mon 20
May		00:00

S
S

 15 / 27 mph 70 / 70°F 82% 1010 mb
Low level cloud: 0%
Mid level cloud: 44%
High level cloud: 33%
Most Significant Cloud Type: medium
45%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

SSE
SSE

 8 / 16 mph 66 / 66°F 92% 1009 mb
Low level cloud: 0%
Mid level cloud: 20%
High level cloud: 15%
Most Significant Cloud Type: medium
21%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

S
S

 12 / 23 mph 67 / 66°F 90% 1010 mb
Low level cloud: 0%
Mid level cloud: 17%
High level cloud: 28%
Most Significant Cloud Type: medium
18%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

SSW
SSW

 13 / 17 mph 75 / 77°F 76% 1011 mb
Low level cloud: 8%
Mid level cloud: 11%
High level cloud: 41%
Most Significant Cloud Type: low
16%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

SSW
SSW

 9 / 11 mph 82 / 82°F 62% 1010 mb
Low level cloud: 0%
Mid level cloud: 9%
High level cloud: 14%
Most Significant Cloud Type: medium
9%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

SSW
SSW

 9 / 11 mph 85 / 85°F 59% 1009 mb
Low level cloud: 9%
Mid level cloud: 12%
High level cloud: 4%
Most Significant Cloud Type: low
14%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

SSW
SSW

 6 / 12 mph 81 / 82°F 77% 1008 mb
Low level cloud: 0%
Mid level cloud: 28%
High level cloud: 0%
Most Significant Cloud Type: medium
27%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

SSE
SSE

 9 / 19 mph 72 / 76°F 83% 1008 mb
Low level cloud: 0%
Mid level cloud: 38%
High level cloud: 0%
Most Significant Cloud Type: medium
37%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Tue 21
May		00:00

SSE
SSE

 12 / 21 mph 72 / 71°F 85% 1007 mb
Low level cloud: 0%
Mid level cloud: 21%
High level cloud: 0%
Most Significant Cloud Type: medium
21%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

S
S

 11 / 22 mph 69 / 69°F 85% 1006 mb
Low level cloud: 0%
Mid level cloud: 6%
High level cloud: 6%
Most Significant Cloud Type: medium
5%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

SSE
SSE

 14 / 26 mph 70 / 69°F 87% 1006 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

S
S

 19 / 24 mph 79 / 82°F 75% 1004 mb
Low level cloud: 0%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: medium
4%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

SSW
SSW

 21 / 26 mph 85 / 90°F 67% 1003 mb
Low level cloud: 0%
Mid level cloud: 15%
High level cloud: 0%
Most Significant Cloud Type: medium
14%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

SSW
SSW

 22 / 32 mph 85 / 89°F 63% 1001 mb
Low level cloud: 0%
Mid level cloud: 19%
High level cloud: 40%
Most Significant Cloud Type: medium
20%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

SSW
SSW

 14 / 27 mph 77 / 78°F 83% 1001 mb
Low level cloud: 5%
Mid level cloud: 46%
High level cloud: 0%
Most Significant Cloud Type: medium
59%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
21:00

S
S

 14 / 28 mph 66 / 66°F 95% 1003 mb
Low level cloud: 42%
Mid level cloud: 11%
High level cloud: 10%
Most Significant Cloud Type: low
47%
Expect 0.3 In of precipitation over the past 3 hours.
0.3 In
Wed 22
May		00:00

WSW
WSW

 4 / 7 mph 67 / 67°F 98% 1005 mb
Low level cloud: 86%
Mid level cloud: 12%
High level cloud: 10%
Most Significant Cloud Type: low
91%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

N
N

 2 / 4 mph 66 / 65°F 97% 1004 mb
Low level cloud: 76%
Mid level cloud: 7%
High level cloud: 3%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

ESE
ESE

 3 / 5 mph 68 / 66°F 97% 1004 mb
Low level cloud: 84%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

SW
SW

 11 / 15 mph 74 / 77°F 90% 1004 mb
Low level cloud: 98%
Mid level cloud: 2%
High level cloud: 0%
Most Significant Cloud Type: low
99%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

SW
SW

 17 / 25 mph 80 / 83°F 82% 1003 mb
Low level cloud: 67%
Mid level cloud: 26%
High level cloud: 0%
Most Significant Cloud Type: low
76%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
15:00

NW
NW

 14 / 20 mph 63 / 63°F 91% 1006 mb
Low level cloud: 78%
Mid level cloud: 44%
High level cloud: 0%
Most Significant Cloud Type: low
93%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
18:00

WNW
WNW

 13 / 19 mph 65 / 63°F 80% 1008 mb
Low level cloud: 64%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: low
65%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

NW
NW

 11 / 17 mph 59 / 59°F 88% 1012 mb
Low level cloud: 8%
Mid level cloud: 29%
High level cloud: 0%
Most Significant Cloud Type: medium
49%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Thu 23
May		00:00

WNW
WNW

 10 / 17 mph 54 / 51°F 96% 1014 mb
Low level cloud: 34%
Mid level cloud: 32%
High level cloud: 0%
Most Significant Cloud Type: low
45%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

WNW
WNW

 8 / 14 mph 51 / 48°F 98% 1015 mb
Low level cloud: 69%
Mid level cloud: 11%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

NNW
NNW

 8 / 12 mph 53 / 49°F 95% 1016 mb
Low level cloud: 39%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: low
40%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

NNW
NNW

 9 / 10 mph 64 / 61°F 74% 1018 mb
Low level cloud: 38%
Mid level cloud: 2%
High level cloud: 0%
Most Significant Cloud Type: low
38%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

NW
NW

 8 / 10 mph 69 / 67°F 60% 1018 mb
Low level cloud: 67%
Mid level cloud: 12%
High level cloud: 11%
Most Significant Cloud Type: low
72%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

NNW
NNW

 7 / 9 mph 70 / 68°F 59% 1017 mb
Low level cloud: 34%
Mid level cloud: 18%
High level cloud: 35%
Most Significant Cloud Type: low
44%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

NNW
NNW

 5 / 7 mph 67 / 65°F 73% 1018 mb
Low level cloud: 4%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: low
4%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

NNE
NNE

 2 / 3 mph 60 / 60°F 81% 1020 mb
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 0%
Most Significant Cloud Type: medium
2%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
DayLocal TimeDirSpeed/
Gust		Temp/
Feels Like		HumidityPressureCloud AmountPrecip AmountWeather
Fri 24
May		00:00

SSE
SSE

 9 / 19 mph 63 / 63°F 96% 1016 mb
Low level cloud: 25%
Mid level cloud: 9%
High level cloud: 0%
Most Significant Cloud Type: low
28%
0.0 In
06:00

S
S

 5 / 10 mph 65 / 65°F 99% 1008 mb
Low level cloud: 90%
Mid level cloud: 44%
High level cloud: 97%
Most Significant Cloud Type: low
100%
0.0 In
12:00

S
S

 17 / 35 mph 76 / 80°F 87% 1003 mb
Low level cloud: 55%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: low
56%
0.0 In
18:00

WSW
WSW

 13 / 26 mph 82 / 91°F 89% 1006 mb
Low level cloud: 40%
Mid level cloud: 81%
High level cloud: 0%
Most Significant Cloud Type: low
68%
0.0 In
Sat 25
May		00:00

S
S

 19 / 39 mph 75 / 78°F 72% 1005 mb
Low level cloud: 0%
Mid level cloud: 6%
High level cloud: 0%
Most Significant Cloud Type: medium
6%
0.0 In
06:00

S
S

 14 / 29 mph 68 / 68°F 94% 1006 mb
Low level cloud: 26%
Mid level cloud: 45%
High level cloud: 12%
Most Significant Cloud Type: low
42%
0.0 In
12:00

SSW
SSW

 18 / 38 mph 81 / 85°F 71% 1008 mb
Low level cloud: 0%
Mid level cloud: 8%
High level cloud: 4%
Most Significant Cloud Type: medium
7%
0.0 In
18:00

S
S

 12 / 25 mph 77 / 80°F 79% 1008 mb
Low level cloud: 8%
Mid level cloud: 44%
High level cloud: 33%
Most Significant Cloud Type: medium
67%
0.0 In
Sun 26
May		00:00

W
W

 19 / 40 mph 70 / 70°F 90% 1009 mb
Low level cloud: 15%
Mid level cloud: 21%
High level cloud: 100%
Most Significant Cloud Type: low
34%
0.0 In
06:00

SSW
SSW

 14 / 29 mph 69 / 69°F 93% 1008 mb
Low level cloud: 40%
Mid level cloud: 10%
High level cloud: 5%
Most Significant Cloud Type: low
44%
0.3 In
12:00

SSW
SSW

 14 / 30 mph 81 / 86°F 76% 1008 mb
Low level cloud: 84%
Mid level cloud: 33%
High level cloud: 0%
Most Significant Cloud Type: low
95%
0.3 In
18:00

WSW
WSW

 7 / 14 mph 75 / 79°F 86% 1008 mb
Low level cloud: 5%
Mid level cloud: 14%
High level cloud: 0%
Most Significant Cloud Type: medium
27%
0.1 In
Mon 27
May		00:00

NE
NE

 14 / 29 mph 65 / 65°F 98% 1010 mb
Low level cloud: 22%
Mid level cloud: 45%
High level cloud: 6%
Most Significant Cloud Type: low
38%
0.6 In
06:00

NE
NE

 4 / 9 mph 64 / 64°F 96% 1014 mb
Low level cloud: 59%
Mid level cloud: 12%
High level cloud: 69%
Most Significant Cloud Type: low
71%
0.7 In
12:00

NNE
NNE

 12 / 26 mph 64 / 64°F 95% 1014 mb
Low level cloud: 95%
Mid level cloud: 72%
High level cloud: 0%
Most Significant Cloud Type: low
100%
0.4 In
18:00

NE
NE

 7 / 15 mph 67 / 67°F 84% 1014 mb
Low level cloud: 18%
Mid level cloud: 45%
High level cloud: 0%
Most Significant Cloud Type: low
33%
0.1 In
Tue 28
May		00:00

NNE
NNE

 5 / 11 mph 61 / 61°F 97% 1016 mb
Low level cloud: 94%
Mid level cloud: 44%
High level cloud: 0%
Most Significant Cloud Type: low
100%
0.2 In
06:00

ENE
ENE

 9 / 19 mph 61 / 61°F 84% 1015 mb
Low level cloud: 0%
Mid level cloud: 31%
High level cloud: 19%
Most Significant Cloud Type: medium
32%
0.0 In
12:00

ENE
ENE

 12 / 25 mph 63 / 64°F 80% 1020 mb
Low level cloud: 92%
Mid level cloud: 44%
High level cloud: 0%
Most Significant Cloud Type: low
100%
0.0 In
18:00

ESE
ESE

 7 / 14 mph 69 / 69°F 82% 1015 mb
Low level cloud: 0%
Mid level cloud: 31%
High level cloud: 0%
Most Significant Cloud Type: medium
30%
0.0 In
Wed 29
May		00:00

N
N

 11 / 24 mph 57 / 54°F 95% 1021 mb
Low level cloud: 87%
Mid level cloud: 91%
High level cloud: 6%
Most Significant Cloud Type: low
100%
0.3 In
06:00

NE
NE

 8 / 16 mph 57 / 56°F 90% 1016 mb
Low level cloud: 5%
Mid level cloud: 78%
High level cloud: 0%
Most Significant Cloud Type: medium
90%
0.0 In
12:00

NNE
NNE

 11 / 23 mph 68 / 68°F 64% 1023 mb
Low level cloud: 32%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
31%
0.0 In
18:00

NNW
NNW

 8 / 16 mph 62 / 62°F 91% 1017 mb
Low level cloud: 11%
Mid level cloud: 46%
High level cloud: 0%
Most Significant Cloud Type: medium
76%
0.2 In
Thu 30
May		00:00

ESE
ESE

 2 / 4 mph 57 / 59°F 84% 1023 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
06:00

W
W

 7 / 15 mph 54 / 52°F 95% 1017 mb
Low level cloud: 26%
Mid level cloud: 17%
High level cloud: 0%
Most Significant Cloud Type: low
31%
0.0 In
12:00

SE
SE

 9 / 18 mph 72 / 76°F 56% 1023 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: medium
2%
0.0 In
18:00

WNW
WNW

 11 / 23 mph 66 / 66°F 79% 1014 mb
Low level cloud: 0%
Mid level cloud: 20%
High level cloud: 0%
Most Significant Cloud Type: medium
20%
0.0 In
Fri 31
May		00:00

SSE
SSE

 9 / 19 mph 59 / 59°F 83% 1022 mb
Low level cloud: 0%
Mid level cloud: 7%
High level cloud: 0%
Most Significant Cloud Type: medium
7%
0.0 In
06:00

WNW
WNW

 4 / 9 mph 54 / 54°F 95% 1017 mb
Low level cloud: 39%
Mid level cloud: 43%
High level cloud: 0%
Most Significant Cloud Type: low
54%
0.0 In
12:00

S
S

 11 / 22 mph 71 / 71°F 71% 1023 mb
Low level cloud: 0%
Mid level cloud: 46%
High level cloud: 95%
Most Significant Cloud Type: medium
50%
0.0 In
18:00

NNW
NNW

 11 / 23 mph 63 / 63°F 70% 1019 mb
Low level cloud: 0%
Mid level cloud: 18%
High level cloud: 0%
Most Significant Cloud Type: medium
17%
0.0 In
Sat 01
Jun		00:00

SSE
SSE

 9 / 20 mph 61 / 61°F 88% 1020 mb
Low level cloud: 0%
Mid level cloud: 8%
High level cloud: 69%
Most Significant Cloud Type: medium
10%
0.0 In
06:00

NW
NW

 6 / 13 mph 53 / 51°F 87% 1024 mb
Low level cloud: 3%
Mid level cloud: 42%
High level cloud: 0%
Most Significant Cloud Type: medium
50%
0.0 In
12:00

SSE
SSE

 13 / 28 mph 69 / 69°F 82% 1018 mb
Low level cloud: 0%
Mid level cloud: 23%
High level cloud: 85%
Most Significant Cloud Type: medium
26%
0.0 In
18:00

N
N

 4 / 9 mph 64 / 64°F 69% 1023 mb
Low level cloud: 5%
Mid level cloud: 67%
High level cloud: 0%
Most Significant Cloud Type: medium
80%
0.0 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