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Port Of Spain 14 Day Long Range Forecast

14 Day weather providing an extended long range forecast outlook for Port Of Spain

Trinidad And Tobago

Long range weather outlook for Port Of Spain includes 14 day forecast summary:

Taking a look at Port Of Spain over the coming two weeks and the average daytime maximum temperature will be around 29°C, with a high for the two weeks of 30°C expected on the morning of Wednesday 14th. The average minimum temperature will be 23°C, dipping to its lowest on the morning of Tuesday 13th at 22°C. The next 14 days will have some days seeing a little precipitation and some days with rain. Current predictions suggest Thursday 15th will have the most precipitation with an accumulation of around 23.0mm. On the whole winds are likely to be moderate.

DayLocal TimeDirSpeed/
Gust		Temp/
Feels Like		HumidityPressureCloud AmountPrecip AmountWeather
Sun 11
Jan		17:00

ENE
ENE

 9 / 13 mph 84 / 90°F 81% 1011 mb
Low level cloud: 39%
Mid level cloud: 8%
High level cloud: 0%
Most Significant Cloud Type: low
41%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
20:00

ENE
ENE

 8 / 10 mph 80 / 87°F 87% 1013 mb
Low level cloud: 43%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: low
44%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
23:00

ENE
ENE

 7 / 8 mph 78 / 84°F 88% 1013 mb
Low level cloud: 24%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: low
25%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Mon 12
Jan		02:00

ENE
ENE

 7 / 11 mph 76 / 80°F 88% 1012 mb
Low level cloud: 32%
Mid level cloud: 8%
High level cloud: 0%
Most Significant Cloud Type: low
34%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
05:00

ENE
ENE

 8 / 12 mph 74 / 78°F 87% 1012 mb
Low level cloud: 21%
Mid level cloud: 6%
High level cloud: 0%
Most Significant Cloud Type: low
22%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
08:00

ENE
ENE

 7 / 11 mph 77 / 79°F 85% 1014 mb
Low level cloud: 46%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: low
47%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
11:00

NE
NE

 8 / 12 mph 81 / 83°F 74% 1014 mb
Low level cloud: 32%
Mid level cloud: 8%
High level cloud: 0%
Most Significant Cloud Type: low
34%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
14:00

ENE
ENE

 8 / 10 mph 84 / 88°F 77% 1012 mb
Low level cloud: 20%
Mid level cloud: 16%
High level cloud: 2%
Most Significant Cloud Type: low
25%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
17:00

ENE
ENE

 9 / 12 mph 84 / 89°F 82% 1011 mb
Low level cloud: 10%
Mid level cloud: 19%
High level cloud: 6%
Most Significant Cloud Type: low
16%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
20:00

E
E

 8 / 9 mph 79 / 86°F 87% 1013 mb
Low level cloud: 3%
Mid level cloud: 20%
High level cloud: 1%
Most Significant Cloud Type: medium
29%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
23:00

ENE
ENE

 7 / 8 mph 78 / 83°F 89% 1014 mb
Low level cloud: 12%
Mid level cloud: 27%
High level cloud: 7%
Most Significant Cloud Type: low
22%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Tue 13
Jan		02:00

E
E

 5 / 9 mph 74 / 78°F 90% 1012 mb
Low level cloud: 6%
Mid level cloud: 46%
High level cloud: 4%
Most Significant Cloud Type: medium
62%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
05:00

ESE
ESE

 6 / 10 mph 73 / 77°F 88% 1012 mb
Low level cloud: 1%
Mid level cloud: 47%
High level cloud: 0%
Most Significant Cloud Type: medium
48%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
08:00

E
E

 5 / 8 mph 78 / 80°F 86% 1014 mb
Low level cloud: 12%
Mid level cloud: 27%
High level cloud: 2%
Most Significant Cloud Type: low
21%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
11:00

ENE
ENE

 6 / 8 mph 85 / 87°F 70% 1014 mb
Low level cloud: 64%
Mid level cloud: 21%
High level cloud: 0%
Most Significant Cloud Type: low
71%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
14:00

E
E

 9 / 13 mph 84 / 88°F 79% 1011 mb
Low level cloud: 30%
Mid level cloud: 26%
High level cloud: 3%
Most Significant Cloud Type: low
40%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
17:00

E
E

 9 / 14 mph 81 / 84°F 83% 1011 mb
Low level cloud: 16%
Mid level cloud: 29%
High level cloud: 5%
Most Significant Cloud Type: low
26%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
20:00

E
E

 7 / 11 mph 75 / 79°F 88% 1013 mb
Low level cloud: 12%
Mid level cloud: 46%
High level cloud: 6%
Most Significant Cloud Type: medium
80%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
23:00

E
E

 6 / 10 mph 74 / 78°F 90% 1013 mb
Low level cloud: 9%
Mid level cloud: 45%
High level cloud: 13%
Most Significant Cloud Type: medium
70%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Wed 14
Jan		02:00

E
E

 6 / 10 mph 74 / 78°F 90% 1012 mb
Low level cloud: 4%
Mid level cloud: 73%
High level cloud: 6%
Most Significant Cloud Type: medium
83%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
05:00

E
E

 6 / 11 mph 74 / 78°F 89% 1011 mb
Low level cloud: 7%
Mid level cloud: 48%
High level cloud: 0%
Most Significant Cloud Type: medium
67%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
08:00

E
E

 8 / 11 mph 78 / 80°F 87% 1013 mb
Low level cloud: 9%
Mid level cloud: 44%
High level cloud: 0%
Most Significant Cloud Type: medium
68%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
11:00

ENE
ENE

 8 / 9 mph 86 / 88°F 64% 1013 mb
Low level cloud: 5%
Mid level cloud: 36%
High level cloud: 0%
Most Significant Cloud Type: medium
51%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
14:00

ENE
ENE

 9 / 12 mph 84 / 89°F 77% 1010 mb
Low level cloud: 67%
Mid level cloud: 43%
High level cloud: 0%
Most Significant Cloud Type: low
82%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
17:00

ENE
ENE

 10 / 16 mph 82 / 85°F 79% 1010 mb
Low level cloud: 1%
Mid level cloud: 46%
High level cloud: 0%
Most Significant Cloud Type: medium
48%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
20:00

ENE
ENE

 8 / 13 mph 76 / 80°F 87% 1012 mb
Low level cloud: 1%
Mid level cloud: 43%
High level cloud: 0%
Most Significant Cloud Type: medium
46%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
23:00

E
E

 7 / 12 mph 75 / 79°F 91% 1012 mb
Low level cloud: 14%
Mid level cloud: 44%
High level cloud: 0%
Most Significant Cloud Type: medium
82%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Thu 15
Jan		02:00

E
E

 7 / 11 mph 76 / 80°F 91% 1011 mb
Low level cloud: 38%
Mid level cloud: 36%
High level cloud: 21%
Most Significant Cloud Type: low
52%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
05:00

E
E

 8 / 14 mph 75 / 79°F 93% 1011 mb
Low level cloud: 21%
Mid level cloud: 45%
High level cloud: 17%
Most Significant Cloud Type: low
38%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
08:00

E
E

 9 / 15 mph 77 / 81°F 91% 1013 mb
Low level cloud: 10%
Mid level cloud: 46%
High level cloud: 75%
Most Significant Cloud Type: medium
76%
Expect 0.2 In of precipitation over the past 3 hours.
0.2 In
11:00

E
E

 10 / 17 mph 82 / 86°F 86% 1013 mb
Low level cloud: 22%
Mid level cloud: 46%
High level cloud: 100%
Most Significant Cloud Type: low
50%
Expect 0.2 In of precipitation over the past 3 hours.
0.2 In
14:00

E
E

 10 / 19 mph 84 / 89°F 77% 1011 mb
Low level cloud: 9%
Mid level cloud: 45%
High level cloud: 100%
Most Significant Cloud Type: medium
74%
Expect 0.2 In of precipitation over the past 3 hours.
0.2 In
17:00

E
E

 10 / 17 mph 84 / 91°F 83% 1010 mb
Low level cloud: 12%
Mid level cloud: 30%
High level cloud: 100%
Most Significant Cloud Type: low
34%
Expect 0.2 In of precipitation over the past 3 hours.
0.2 In
20:00

E
E

 7 / 10 mph 80 / 88°F 91% 1012 mb
Low level cloud: 35%
Mid level cloud: 21%
High level cloud: 33%
Most Significant Cloud Type: low
46%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
23:00

E
E

 7 / 8 mph 78 / 84°F 93% 1012 mb
Low level cloud: 39%
Mid level cloud: 24%
High level cloud: 29%
Most Significant Cloud Type: low
50%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Fri 16
Jan		02:00

ENE
ENE

 6 / 10 mph 75 / 80°F 93% 1011 mb
Low level cloud: 41%
Mid level cloud: 25%
High level cloud: 13%
Most Significant Cloud Type: low
50%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
05:00

ENE
ENE

 7 / 12 mph 74 / 79°F 92% 1011 mb
Low level cloud: 40%
Mid level cloud: 20%
High level cloud: 32%
Most Significant Cloud Type: low
51%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
08:00

E
E

 9 / 12 mph 79 / 82°F 90% 1013 mb
Low level cloud: 26%
Mid level cloud: 19%
High level cloud: 14%
Most Significant Cloud Type: low
34%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
11:00

ENE
ENE

 10 / 14 mph 85 / 89°F 72% 1014 mb
Low level cloud: 27%
Mid level cloud: 15%
High level cloud: 3%
Most Significant Cloud Type: low
33%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
14:00

ENE
ENE

 11 / 14 mph 84 / 90°F 77% 1011 mb
Low level cloud: 23%
Mid level cloud: 13%
High level cloud: 0%
Most Significant Cloud Type: low
27%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
17:00

ENE
ENE

 11 / 15 mph 82 / 86°F 83% 1010 mb
Low level cloud: 15%
Mid level cloud: 10%
High level cloud: 0%
Most Significant Cloud Type: low
18%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
20:00

ENE
ENE

 8 / 13 mph 76 / 81°F 90% 1013 mb
Low level cloud: 31%
Mid level cloud: 7%
High level cloud: 0%
Most Significant Cloud Type: low
33%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
23:00

E
E

 8 / 12 mph 75 / 80°F 92% 1013 mb
Low level cloud: 36%
Mid level cloud: 6%
High level cloud: 0%
Most Significant Cloud Type: low
38%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sat 17
Jan		02:00

ENE
ENE

 7 / 11 mph 75 / 79°F 91% 1012 mb
Low level cloud: 45%
Mid level cloud: 9%
High level cloud: 0%
Most Significant Cloud Type: low
47%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
05:00

ENE
ENE

 8 / 12 mph 75 / 79°F 91% 1011 mb
Low level cloud: 46%
Mid level cloud: 12%
High level cloud: 0%
Most Significant Cloud Type: low
50%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
08:00

ENE
ENE

 9 / 12 mph 79 / 82°F 88% 1013 mb
Low level cloud: 32%
Mid level cloud: 10%
High level cloud: 0%
Most Significant Cloud Type: low
35%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
11:00

ENE
ENE

 12 / 13 mph 85 / 89°F 69% 1013 mb
Low level cloud: 26%
Mid level cloud: 10%
High level cloud: 0%
Most Significant Cloud Type: low
29%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
14:00

ENE
ENE

 12 / 16 mph 84 / 89°F 75% 1010 mb
Low level cloud: 18%
Mid level cloud: 10%
High level cloud: 0%
Most Significant Cloud Type: low
21%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
17:00

ENE
ENE

 11 / 14 mph 83 / 87°F 77% 1010 mb
Low level cloud: 25%
Mid level cloud: 8%
High level cloud: 0%
Most Significant Cloud Type: low
27%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
20:00

ENE
ENE

 9 / 14 mph 76 / 81°F 89% 1011 mb
Low level cloud: 36%
Mid level cloud: 6%
High level cloud: 0%
Most Significant Cloud Type: low
38%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
23:00

E
E

 8 / 12 mph 75 / 80°F 91% 1012 mb
Low level cloud: 45%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: low
46%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
DayLocal TimeDirSpeed/
Gust		Temp/
Feels Like		HumidityPressureCloud AmountPrecip AmountWeather
Sun 18
Jan		02:00

ENE
ENE

 8 / 16 mph 74 / 78°F 92% 1011 mb
Low level cloud: 46%
Mid level cloud: 14%
High level cloud: 1%
Most Significant Cloud Type: low
51%
0.0 In
08:00

ENE
ENE

 9 / 18 mph 75 / 79°F 88% 1012 mb
Low level cloud: 61%
Mid level cloud: 10%
High level cloud: 0%
Most Significant Cloud Type: low
64%
0.0 In
14:00

ENE
ENE

 11 / 23 mph 82 / 89°F 81% 1009 mb
Low level cloud: 61%
Mid level cloud: 18%
High level cloud: 0%
Most Significant Cloud Type: low
66%
0.0 In
20:00

E
E

 9 / 18 mph 80 / 88°F 90% 1011 mb
Low level cloud: 34%
Mid level cloud: 10%
High level cloud: 0%
Most Significant Cloud Type: low
37%
0.0 In
Mon 19
Jan		02:00

E
E

 8 / 16 mph 74 / 79°F 91% 1011 mb
Low level cloud: 33%
Mid level cloud: 10%
High level cloud: 0%
Most Significant Cloud Type: low
36%
0.0 In
08:00

ENE
ENE

 10 / 20 mph 74 / 78°F 88% 1012 mb
Low level cloud: 46%
Mid level cloud: 21%
High level cloud: 1%
Most Significant Cloud Type: low
53%
0.0 In
14:00

E
E

 12 / 26 mph 84 / 92°F 78% 1011 mb
Low level cloud: 19%
Mid level cloud: 18%
High level cloud: 0%
Most Significant Cloud Type: low
25%
0.0 In
20:00

E
E

 8 / 17 mph 81 / 90°F 89% 1012 mb
Low level cloud: 22%
Mid level cloud: 9%
High level cloud: 0%
Most Significant Cloud Type: low
24%
0.0 In
Tue 20
Jan		02:00

E
E

 8 / 17 mph 77 / 82°F 91% 1011 mb
Low level cloud: 34%
Mid level cloud: 13%
High level cloud: 0%
Most Significant Cloud Type: low
38%
0.0 In
08:00

ENE
ENE

 7 / 14 mph 79 / 84°F 83% 1013 mb
Low level cloud: 13%
Mid level cloud: 2%
High level cloud: 0%
Most Significant Cloud Type: low
14%
0.0 In
14:00

ENE
ENE

 12 / 26 mph 83 / 91°F 77% 1011 mb
Low level cloud: 13%
Mid level cloud: 15%
High level cloud: 0%
Most Significant Cloud Type: low
18%
0.1 In
20:00

ENE
ENE

 10 / 21 mph 75 / 79°F 88% 1012 mb
Low level cloud: 28%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: low
29%
0.0 In
Wed 21
Jan		02:00

ENE
ENE

 9 / 18 mph 74 / 78°F 91% 1012 mb
Low level cloud: 34%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: low
35%
0.0 In
08:00

ENE
ENE

 6 / 13 mph 78 / 82°F 81% 1012 mb
Low level cloud: 62%
Mid level cloud: 6%
High level cloud: 0%
Most Significant Cloud Type: low
64%
0.0 In
14:00

ENE
ENE

 13 / 27 mph 85 / 91°F 64% 1012 mb
Low level cloud: 29%
Mid level cloud: 8%
High level cloud: 0%
Most Significant Cloud Type: low
31%
0.0 In
20:00

ENE
ENE

 9 / 19 mph 75 / 79°F 87% 1011 mb
Low level cloud: 18%
Mid level cloud: 6%
High level cloud: 0%
Most Significant Cloud Type: low
20%
0.1 In
Thu 22
Jan		02:00

E
E

 7 / 15 mph 74 / 78°F 91% 1012 mb
Low level cloud: 37%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: low
38%
0.0 In
08:00

E
E

 3 / 7 mph 79 / 85°F 85% 1011 mb
Low level cloud: 15%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: low
16%
0.0 In
14:00

E
E

 14 / 30 mph 86 / 92°F 63% 1011 mb
Low level cloud: 22%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: low
23%
0.0 In
20:00

E
E

 8 / 17 mph 75 / 79°F 87% 1010 mb
Low level cloud: 2%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: low
3%
0.0 In
Fri 23
Jan		02:00

E
E

 8 / 16 mph 74 / 78°F 90% 1012 mb
Low level cloud: 53%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: low
55%
0.0 In
08:00

E
E

 6 / 13 mph 79 / 85°F 83% 1011 mb
Low level cloud: 22%
Mid level cloud: 6%
High level cloud: 0%
Most Significant Cloud Type: low
24%
0.0 In
14:00

E
E

 11 / 24 mph 82 / 89°F 77% 1012 mb
Low level cloud: 16%
Mid level cloud: 8%
High level cloud: 0%
Most Significant Cloud Type: low
18%
0.1 In
20:00

E
E

 9 / 18 mph 75 / 79°F 89% 1010 mb
Low level cloud: 26%
Mid level cloud: 11%
High level cloud: 0%
Most Significant Cloud Type: low
29%
0.1 In
Sat 24
Jan		02:00

ENE
ENE

 8 / 17 mph 72 / 76°F 79% 1012 mb
Low level cloud: 9%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
8%
0.0 In
08:00

ENE
ENE

 8 / 17 mph 76 / 81°F 89% 1012 mb
Low level cloud: 19%
Mid level cloud: 21%
High level cloud: 0%
Most Significant Cloud Type: low
26%
0.1 In
14:00

E
E

 11 / 24 mph 82 / 88°F 78% 1011 mb
Low level cloud: 28%
Mid level cloud: 26%
High level cloud: 0%
Most Significant Cloud Type: low
37%
0.1 In
20:00

ENE
ENE

 8 / 16 mph 76 / 81°F 88% 1011 mb
Low level cloud: 24%
Mid level cloud: 23%
High level cloud: 0%
Most Significant Cloud Type: low
31%
0.1 In
Sun 25
Jan		02:00

E
E

 9 / 18 mph 73 / 77°F 88% 1011 mb
Low level cloud: 0%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: medium
6%
0.0 In
08:00

ENE
ENE

 7 / 15 mph 78 / 82°F 86% 1011 mb
Low level cloud: 35%
Mid level cloud: 6%
High level cloud: 0%
Most Significant Cloud Type: low
37%
0.0 In
14:00

ENE
ENE

 14 / 29 mph 85 / 91°F 66% 1010 mb
Low level cloud: 40%
Mid level cloud: 15%
High level cloud: 0%
Most Significant Cloud Type: low
45%
0.0 In
20:00

NE
NE

 9 / 19 mph 75 / 79°F 87% 1010 mb
Low level cloud: 8%
Mid level cloud: 10%
High level cloud: 0%
Most Significant Cloud Type: low
11%
0.1 In
Mon 26
Jan		02:00

ENE
ENE

 7 / 15 mph 74 / 78°F 90% 1011 mb
Low level cloud: 48%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: low
49%
0.0 In
08:00

ENE
ENE

 5 / 11 mph 77 / 82°F 84% 1010 mb
Low level cloud: 30%
Mid level cloud: 11%
High level cloud: 0%
Most Significant Cloud Type: low
33%
0.1 In
14:00

ENE
ENE

 9 / 19 mph 87 / 92°F 56% 1011 mb
Low level cloud: 0%
Mid level cloud: 6%
High level cloud: 0%
Most Significant Cloud Type: medium
5%
0.0 In
20:00

NE
NE

 7 / 15 mph 76 / 80°F 85% 1009 mb
Low level cloud: 35%
Mid level cloud: 6%
High level cloud: 0%
Most Significant Cloud Type: low
37%
0.1 In

Other Locations Near to Port Of Spain

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