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Port Charlotte 14 Day Long Range Forecast

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

Florida, United States Of America

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

The next 14 day outlook for Port Charlotte shows the average daytime maximum temperature will be around 35°C, with a high for the two weeks of 37°C expected on the afternoon of Wednesday 22nd. The average minimum temperature will be 22°C, dipping to its lowest on the morning of Tuesday 21st at 19°C. Expect the coming 14 days to have mostly dry days although Sunday is likely to see a little rain. The current forecast indicates Sunday 19th will have the most precipitation with an accumulation of around 1.0mm. On the whole winds are likely to be moderate.

DayLocal TimeDirSpeed/
Gust
Temp/
Feels Like
HumidityPressureCloud AmountPrecip AmountWeather
Sat 18
May
16:00

SW
SW

15 / 18 mph 94 / 98°F 44% 1014 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
19:00

WSW
WSW

9 / 14 mph 86 / 89°F 66% 1014 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
22:00

W
W

5 / 8 mph 79 / 85°F 91% 1014 mb
Low level cloud: 3%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
3%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sun 19
May
01:00

WSW
WSW

5 / 9 mph 76 / 81°F 91% 1014 mb
Low level cloud: 8%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: low
9%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

WSW
WSW

5 / 10 mph 76 / 81°F 90% 1013 mb
Low level cloud: 6%
Mid level cloud: 12%
High level cloud: 0%
Most Significant Cloud Type: low
9%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

WSW
WSW

7 / 10 mph 83 / 86°F 75% 1015 mb
Low level cloud: 15%
Mid level cloud: 19%
High level cloud: 1%
Most Significant Cloud Type: low
21%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

WSW
WSW

11 / 14 mph 92 / 96°F 49% 1014 mb
Low level cloud: 37%
Mid level cloud: 14%
High level cloud: 2%
Most Significant Cloud Type: low
42%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

W
W

15 / 18 mph 94 / 100°F 44% 1014 mb
Low level cloud: 13%
Mid level cloud: 43%
High level cloud: 3%
Most Significant Cloud Type: medium
80%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

W
W

15 / 17 mph 92 / 96°F 49% 1012 mb
Low level cloud: 0%
Mid level cloud: 24%
High level cloud: 79%
Most Significant Cloud Type: medium
26%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

WNW
WNW

10 / 15 mph 84 / 86°F 61% 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
22:00

NW
NW

6 / 11 mph 77 / 80°F 75% 1013 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
01:00

NW
NW

4 / 7 mph 76 / 79°F 74% 1012 mb
Low level cloud: 0%
Mid level cloud: 48%
High level cloud: 0%
Most Significant Cloud Type: medium
48%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

N
N

2 / 4 mph 74 / 77°F 82% 1012 mb
Low level cloud: 0%
Mid level cloud: 96%
High level cloud: 0%
Most Significant Cloud Type: medium
96%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

NW
NW

3 / 4 mph 82 / 81°F 70% 1013 mb
Low level cloud: 0%
Mid level cloud: 31%
High level cloud: 0%
Most Significant Cloud Type: medium
31%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

W
W

9 / 10 mph 92 / 92°F 43% 1013 mb
Low level cloud: 35%
Mid level cloud: 39%
High level cloud: 0%
Most Significant Cloud Type: low
48%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

W
W

17 / 19 mph 94 / 96°F 38% 1012 mb
Low level cloud: 0%
Mid level cloud: 31%
High level cloud: 0%
Most Significant Cloud Type: medium
31%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

W
W

17 / 20 mph 93 / 92°F 34% 1011 mb
Low level cloud: 0%
Mid level cloud: 10%
High level cloud: 0%
Most Significant Cloud Type: medium
10%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

WNW
WNW

13 / 21 mph 84 / 84°F 52% 1011 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
22:00

N
N

6 / 13 mph 74 / 77°F 77% 1013 mb
Low level cloud: 4%
Mid level cloud: 25%
High level cloud: 0%
Most Significant Cloud Type: medium
36%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Tue 21
May
01:00

NE
NE

6 / 11 mph 71 / 71°F 90% 1013 mb
Low level cloud: 5%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: low
6%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

NNE
NNE

7 / 13 mph 68 / 69°F 93% 1012 mb
Low level cloud: 6%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
6%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

NE
NE

7 / 9 mph 75 / 77°F 77% 1014 mb
Low level cloud: 2%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: low
2%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

NE
NE

7 / 8 mph 89 / 88°F 43% 1014 mb
Low level cloud: 17%
Mid level cloud: 6%
High level cloud: 0%
Most Significant Cloud Type: low
18%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

W
W

3 / 4 mph 97 / 95°F 26% 1011 mb
Low level cloud: 0%
Mid level cloud: 13%
High level cloud: 0%
Most Significant Cloud Type: medium
12%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

W
W

18 / 21 mph 92 / 92°F 38% 1011 mb
Low level cloud: 0%
Mid level cloud: 17%
High level cloud: 0%
Most Significant Cloud Type: medium
16%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

WNW
WNW

15 / 21 mph 85 / 84°F 45% 1011 mb
Low level cloud: 0%
Mid level cloud: 44%
High level cloud: 0%
Most Significant Cloud Type: medium
44%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

ENE
ENE

13 / 21 mph 76 / 79°F 65% 1014 mb
Low level cloud: 9%
Mid level cloud: 15%
High level cloud: 0%
Most Significant Cloud Type: low
13%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Wed 22
May
01:00

ENE
ENE

8 / 15 mph 71 / 71°F 82% 1013 mb
Low level cloud: 0%
Mid level cloud: 8%
High level cloud: 0%
Most Significant Cloud Type: medium
8%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

E
E

7 / 14 mph 69 / 69°F 90% 1013 mb
Low level cloud: 0%
Mid level cloud: 9%
High level cloud: 0%
Most Significant Cloud Type: medium
8%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

E
E

8 / 10 mph 77 / 78°F 74% 1015 mb
Low level cloud: 0%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: medium
5%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

ESE
ESE

5 / 6 mph 91 / 90°F 42% 1015 mb
Low level cloud: 1%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: medium
7%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

SW
SW

9 / 10 mph 99 / 98°F 25% 1013 mb
Low level cloud: 0%
Mid level cloud: 14%
High level cloud: 0%
Most Significant Cloud Type: medium
14%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

W
W

16 / 18 mph 93 / 92°F 33% 1012 mb
Low level cloud: 0%
Mid level cloud: 24%
High level cloud: 0%
Most Significant Cloud Type: medium
23%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

W
W

7 / 11 mph 87 / 85°F 48% 1013 mb
Low level cloud: 0%
Mid level cloud: 58%
High level cloud: 0%
Most Significant Cloud Type: medium
57%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

E
E

9 / 15 mph 78 / 81°F 68% 1015 mb
Low level cloud: 9%
Mid level cloud: 31%
High level cloud: 0%
Most Significant Cloud Type: medium
55%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Thu 23
May
01:00

E
E

7 / 14 mph 72 / 77°F 87% 1015 mb
Low level cloud: 1%
Mid level cloud: 28%
High level cloud: 0%
Most Significant Cloud Type: medium
29%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

ESE
ESE

7 / 15 mph 71 / 71°F 92% 1015 mb
Low level cloud: 2%
Mid level cloud: 24%
High level cloud: 0%
Most Significant Cloud Type: medium
30%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

ESE
ESE

6 / 8 mph 80 / 80°F 73% 1016 mb
Low level cloud: 0%
Mid level cloud: 27%
High level cloud: 0%
Most Significant Cloud Type: medium
26%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

S
S

3 / 4 mph 93 / 93°F 40% 1015 mb
Low level cloud: 9%
Mid level cloud: 22%
High level cloud: 0%
Most Significant Cloud Type: low
16%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

WSW
WSW

14 / 16 mph 97 / 98°F 33% 1014 mb
Low level cloud: 0%
Mid level cloud: 19%
High level cloud: 0%
Most Significant Cloud Type: medium
19%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

W
W

13 / 15 mph 90 / 91°F 41% 1013 mb
Low level cloud: 0%
Mid level cloud: 77%
High level cloud: 0%
Most Significant Cloud Type: medium
76%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

W
W

9 / 13 mph 86 / 85°F 50% 1013 mb
Low level cloud: 0%
Mid level cloud: 23%
High level cloud: 0%
Most Significant Cloud Type: medium
23%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

E
E

3 / 5 mph 80 / 82°F 60% 1015 mb
Low level cloud: 0%
Mid level cloud: 45%
High level cloud: 0%
Most Significant Cloud Type: medium
44%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Fri 24
May
01:00

ESE
ESE

4 / 8 mph 77 / 80°F 72% 1015 mb
Low level cloud: 0%
Mid level cloud: 25%
High level cloud: 0%
Most Significant Cloud Type: medium
24%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

SE
SE

5 / 10 mph 73 / 77°F 84% 1013 mb
Low level cloud: 0%
Mid level cloud: 14%
High level cloud: 0%
Most Significant Cloud Type: medium
14%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

SSE
SSE

3 / 5 mph 81 / 81°F 70% 1014 mb
Low level cloud: 0%
Mid level cloud: 11%
High level cloud: 0%
Most Significant Cloud Type: medium
11%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

WSW
WSW

6 / 6 mph 93 / 93°F 39% 1014 mb
Low level cloud: 1%
Mid level cloud: 10%
High level cloud: 0%
Most Significant Cloud Type: medium
13%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

WSW
WSW

17 / 20 mph 97 / 99°F 33% 1013 mb
Low level cloud: 0%
Mid level cloud: 18%
High level cloud: 0%
Most Significant Cloud Type: medium
17%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

W
W

16 / 18 mph 94 / 94°F 36% 1011 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
19:00

W
W

11 / 17 mph 85 / 85°F 51% 1012 mb
Low level cloud: 0%
Mid level cloud: 25%
High level cloud: 0%
Most Significant Cloud Type: medium
24%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

NW
NW

7 / 10 mph 80 / 82°F 63% 1014 mb
Low level cloud: 0%
Mid level cloud: 26%
High level cloud: 0%
Most Significant Cloud Type: medium
25%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
DayLocal TimeDirSpeed/
Gust
Temp/
Feels Like
HumidityPressureCloud AmountPrecip AmountWeather
Sat 25
May
01:00

ENE
ENE

2 / 4 mph 80 / 83°F 67% 1013 mb
Low level cloud: 0%
Mid level cloud: 14%
High level cloud: 0%
Most Significant Cloud Type: medium
13%
0.0 In
07:00

NW
NW

4 / 8 mph 79 / 80°F 55% 1014 mb
Low level cloud: 0%
Mid level cloud: 7%
High level cloud: 0%
Most Significant Cloud Type: medium
7%
0.0 In
13:00

ESE
ESE

5 / 9 mph 98 / 97°F 24% 1012 mb
Low level cloud: 0%
Mid level cloud: 6%
High level cloud: 0%
Most Significant Cloud Type: medium
5%
0.0 In
19:00

NE
NE

5 / 11 mph 84 / 86°F 51% 1016 mb
Low level cloud: 0%
Mid level cloud: 33%
High level cloud: 0%
Most Significant Cloud Type: medium
33%
0.0 In
Sun 26
May
01:00

ENE
ENE

6 / 13 mph 74 / 78°F 84% 1017 mb
Low level cloud: 0%
Mid level cloud: 12%
High level cloud: 0%
Most Significant Cloud Type: medium
12%
0.0 In
07:00

N
N

5 / 11 mph 80 / 82°F 59% 1016 mb
Low level cloud: 0%
Mid level cloud: 7%
High level cloud: 0%
Most Significant Cloud Type: medium
7%
0.0 In
13:00

SW
SW

17 / 25 mph 96 / 101°F 37% 1015 mb
Low level cloud: 0%
Mid level cloud: 18%
High level cloud: 0%
Most Significant Cloud Type: medium
17%
0.0 In
19:00

W
W

10 / 14 mph 82 / 84°F 52% 1014 mb
Low level cloud: 0%
Mid level cloud: 11%
High level cloud: 0%
Most Significant Cloud Type: medium
10%
0.0 In
Mon 27
May
01:00

NW
NW

1 / 2 mph 78 / 82°F 77% 1015 mb
Low level cloud: 0%
Mid level cloud: 31%
High level cloud: 0%
Most Significant Cloud Type: medium
31%
0.0 In
07:00

SSW
SSW

0 / 1 mph 79 / 82°F 65% 1016 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
13:00

SW
SW

15 / 23 mph 98 / 103°F 33% 1015 mb
Low level cloud: 0%
Mid level cloud: 13%
High level cloud: 1%
Most Significant Cloud Type: medium
12%
0.0 In
19:00

W
W

11 / 17 mph 83 / 85°F 51% 1015 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
Tue 28
May
01:00

SSW
SSW

4 / 7 mph 78 / 82°F 84% 1016 mb
Low level cloud: 8%
Mid level cloud: 16%
High level cloud: 0%
Most Significant Cloud Type: low
13%
0.0 In
07:00

SSE
SSE

3 / 4 mph 79 / 83°F 71% 1017 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
13:00

SW
SW

15 / 24 mph 96 / 98°F 32% 1016 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: medium
3%
0.0 In
19:00

WSW
WSW

8 / 13 mph 83 / 85°F 55% 1016 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: medium
4%
0.0 In
Wed 29
May
01:00

WSW
WSW

4 / 7 mph 77 / 82°F 89% 1015 mb
Low level cloud: 4%
Mid level cloud: 2%
High level cloud: 16%
Most Significant Cloud Type: low
6%
0.0 In
07:00

SE
SE

1 / 2 mph 81 / 85°F 73% 1018 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: medium
4%
0.0 In
13:00

WSW
WSW

17 / 28 mph 93 / 98°F 42% 1015 mb
Low level cloud: 0%
Mid level cloud: 6%
High level cloud: 0%
Most Significant Cloud Type: medium
5%
0.0 In
19:00

W
W

10 / 15 mph 84 / 86°F 51% 1017 mb
Low level cloud: 0%
Mid level cloud: 7%
High level cloud: 0%
Most Significant Cloud Type: medium
7%
0.0 In
Thu 30
May
01:00

NW
NW

7 / 14 mph 69 / 69°F 90% 1016 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
07:00

SSE
SSE

2 / 2 mph 82 / 86°F 64% 1019 mb
Low level cloud: 0%
Mid level cloud: 10%
High level cloud: 0%
Most Significant Cloud Type: medium
9%
0.0 In
13:00

W
W

17 / 27 mph 92 / 90°F 28% 1017 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 47%
Most Significant Cloud Type: high
46%
0.0 In
19:00

W
W

9 / 13 mph 85 / 89°F 56% 1018 mb
Low level cloud: 0%
Mid level cloud: 25%
High level cloud: 0%
Most Significant Cloud Type: medium
25%
0.0 In
Fri 31
May
01:00

NNW
NNW

6 / 13 mph 63 / 63°F 78% 1018 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
07:00

SSE
SSE

3 / 4 mph 84 / 90°F 71% 1020 mb
Low level cloud: 0%
Mid level cloud: 7%
High level cloud: 0%
Most Significant Cloud Type: medium
7%
0.0 In
13:00

WNW
WNW

11 / 17 mph 93 / 90°F 21% 1016 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: medium
4%
0.0 In
19:00

W
W

10 / 16 mph 85 / 90°F 60% 1017 mb
Low level cloud: 0%
Mid level cloud: 9%
High level cloud: 0%
Most Significant Cloud Type: medium
9%
0.0 In
Sat 01
Jun
01:00

NNW
NNW

8 / 16 mph 67 / 67°F 61% 1016 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: medium
2%
0.0 In
07:00

SSW
SSW

3 / 5 mph 83 / 90°F 77% 1018 mb
Low level cloud: 26%
Mid level cloud: 8%
High level cloud: 0%
Most Significant Cloud Type: low
28%
0.0 In
13:00

NNE
NNE

8 / 13 mph 94 / 94°F 29% 1014 mb
Low level cloud: 0%
Mid level cloud: 21%
High level cloud: 0%
Most Significant Cloud Type: medium
21%
0.0 In
19:00

WNW
WNW

9 / 14 mph 85 / 89°F 58% 1016 mb
Low level cloud: 0%
Mid level cloud: 7%
High level cloud: 0%
Most Significant Cloud Type: medium
6%
0.0 In
Sun 02
Jun
01:00

ENE
ENE

9 / 16 mph 71 / 71°F 66% 1017 mb
Low level cloud: 0%
Mid level cloud: 24%
High level cloud: 0%
Most Significant Cloud Type: medium
24%
0.1 In
07:00

SW
SW

4 / 6 mph 83 / 89°F 76% 1017 mb
Low level cloud: 4%
Mid level cloud: 5%
High level cloud: 2%
Most Significant Cloud Type: low
6%
0.0 In
13:00

NNE
NNE

12 / 22 mph 94 / 90°F 17% 1016 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: medium
3%
0.0 In
19:00

W
W

12 / 20 mph 85 / 88°F 55% 1014 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: medium
2%
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