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Tyler 14 Day Long Range Forecast

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

Texas, United States Of America

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

The next 14 day outlook for Tyler shows the average daytime maximum temperature will be around 28°C, with a high for the two weeks of 34°C expected on the afternoon of Monday 27th. The average minimum temperature will be 20°C, dipping to its lowest on the morning of Thursday 30th at 18°C. Expect the following 14 days ahead to have some days seeing a little precipitation and some days with rain. The current forecast indicates Sunday 2nd will have the most precipitation with an accumulation of around 32.0mm. On the whole winds are likely to be moderate.

DayLocal TimeDirSpeed/
Gust
Temp/
Feels Like
HumidityPressureCloud AmountPrecip AmountWeather
Sat 25
May
00:00

SE
SE

4 / 7 mph 74 / 78°F 96% 1009 mb
Low level cloud: 19%
Mid level cloud: 10%
High level cloud: 0%
Most Significant Cloud Type: low
22%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

ESE
ESE

4 / 8 mph 71 / 71°F 97% 1009 mb
Low level cloud: 46%
Mid level cloud: 8%
High level cloud: 0%
Most Significant Cloud Type: low
48%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

SSE
SSE

5 / 8 mph 72 / 77°F 99% 1010 mb
Low level cloud: 77%
Mid level cloud: 8%
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

S
S

9 / 12 mph 79 / 84°F 90% 1010 mb
Low level cloud: 97%
Mid level cloud: 6%
High level cloud: 2%
Most Significant Cloud Type: low
99%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

SSW
SSW

11 / 14 mph 83 / 91°F 78% 1009 mb
Low level cloud: 96%
Mid level cloud: 2%
High level cloud: 2%
Most Significant Cloud Type: low
96%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

SSW
SSW

10 / 14 mph 89 / 98°F 69% 1007 mb
Low level cloud: 32%
Mid level cloud: 0%
High level cloud: 2%
Most Significant Cloud Type: low
31%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

W
W

6 / 13 mph 88 / 97°F 81% 1006 mb
Low level cloud: 2%
Mid level cloud: 9%
High level cloud: 100%
Most Significant Cloud Type: medium
18%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

WSW
WSW

22 / 46 mph 75 / 78°F 78% 1010 mb
Low level cloud: 0%
Mid level cloud: 19%
High level cloud: 84%
Most Significant Cloud Type: medium
22%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
Sun 26
May
15:00

SW
SW

16 / 22 mph 88 / 98°F 74% 1005 mb
Low level cloud: 30%
Mid level cloud: 20%
High level cloud: 0%
Most Significant Cloud Type: low
36%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

SSW
SSW

10 / 16 mph 88 / 99°F 78% 1005 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
21:00

S
S

8 / 13 mph 85 / 101°F 89% 1005 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
Mon 27
May
00:00

SSW
SSW

12 / 19 mph 80 / 87°F 84% 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
03:00

SSW
SSW

7 / 13 mph 75 / 79°F 94% 1007 mb
Low level cloud: 15%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
14%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

SSW
SSW

8 / 14 mph 73 / 77°F 98% 1009 mb
Low level cloud: 59%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
59%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

W
W

3 / 4 mph 82 / 86°F 84% 1011 mb
Low level cloud: 91%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
90%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

SSW
SSW

4 / 4 mph 89 / 97°F 71% 1012 mb
Low level cloud: 30%
Mid level cloud: 1%
High level cloud: 0%
Most Significant Cloud Type: low
30%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

SE
SE

2 / 3 mph 94 / 102°F 57% 1010 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
18:00

ENE
ENE

6 / 6 mph 94 / 113°F 75% 1009 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
21:00

ENE
ENE

4 / 7 mph 84 / 94°F 84% 1012 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
Tue 28
May
00:00

SW
SW

4 / 7 mph 77 / 82°F 93% 1014 mb
Low level cloud: 1%
Mid level cloud: 23%
High level cloud: 13%
Most Significant Cloud Type: medium
25%
Expect 0.3 In of precipitation over the past 3 hours.
0.3 In
03:00

ENE
ENE

6 / 11 mph 75 / 79°F 91% 1014 mb
Low level cloud: 0%
Mid level cloud: 1%
High level cloud: 0%
Most Significant Cloud Type: high
0%
Expect 0.2 In of precipitation over the past 3 hours.
0.2 In
06:00

E
E

3 / 6 mph 71 / 71°F 91% 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
09:00

ESE
ESE

9 / 11 mph 80 / 81°F 74% 1016 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
12:00

SE
SE

6 / 6 mph 88 / 91°F 65% 1016 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
15:00

ESE
ESE

5 / 7 mph 90 / 95°F 59% 1014 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: medium
3%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

E
E

8 / 13 mph 88 / 95°F 75% 1012 mb
Low level cloud: 0%
Mid level cloud: 6%
High level cloud: 0%
Most Significant Cloud Type: medium
5%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

SE
SE

6 / 12 mph 74 / 78°F 89% 1014 mb
Low level cloud: 0%
Mid level cloud: 5%
High level cloud: 67%
Most Significant Cloud Type: medium
7%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Wed 29
May
00:00

S
S

7 / 15 mph 71 / 71°F 88% 1016 mb
Low level cloud: 0%
Mid level cloud: 6%
High level cloud: 99%
Most Significant Cloud Type: medium
10%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

S
S

3 / 5 mph 69 / 69°F 94% 1015 mb
Low level cloud: 10%
Mid level cloud: 44%
High level cloud: 100%
Most Significant Cloud Type: medium
75%
Expect 0.2 In of precipitation over the past 3 hours.
0.2 In
06:00

NE
NE

5 / 11 mph 68 / 68°F 99% 1016 mb
Low level cloud: 86%
Mid level cloud: 77%
High level cloud: 92%
Most Significant Cloud Type: low
100%
Expect 0.7 In of precipitation over the past 3 hours.
0.7 In
09:00

ENE
ENE

9 / 13 mph 75 / 76°F 90% 1018 mb
Low level cloud: 37%
Mid level cloud: 29%
High level cloud: 0%
Most Significant Cloud Type: low
46%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
12:00

E
E

9 / 11 mph 80 / 82°F 77% 1017 mb
Low level cloud: 80%
Mid level cloud: 18%
High level cloud: 0%
Most Significant Cloud Type: low
86%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

E
E

11 / 15 mph 80 / 83°F 80% 1016 mb
Low level cloud: 79%
Mid level cloud: 17%
High level cloud: 0%
Most Significant Cloud Type: low
84%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

ENE
ENE

12 / 17 mph 75 / 78°F 89% 1016 mb
Low level cloud: 65%
Mid level cloud: 15%
High level cloud: 0%
Most Significant Cloud Type: low
69%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

E
E

10 / 15 mph 70 / 70°F 90% 1017 mb
Low level cloud: 26%
Mid level cloud: 6%
High level cloud: 0%
Most Significant Cloud Type: low
27%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Thu 30
May
00:00

ENE
ENE

9 / 14 mph 66 / 66°F 95% 1017 mb
Low level cloud: 54%
Mid level cloud: 9%
High level cloud: 0%
Most Significant Cloud Type: low
57%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

E
E

10 / 16 mph 65 / 65°F 96% 1016 mb
Low level cloud: 58%
Mid level cloud: 12%
High level cloud: 0%
Most Significant Cloud Type: low
62%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

E
E

11 / 18 mph 65 / 65°F 94% 1017 mb
Low level cloud: 52%
Mid level cloud: 9%
High level cloud: 20%
Most Significant Cloud Type: low
57%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

ESE
ESE

10 / 18 mph 68 / 68°F 94% 1019 mb
Low level cloud: 80%
Mid level cloud: 26%
High level cloud: 98%
Most Significant Cloud Type: low
100%
Expect 0.2 In of precipitation over the past 3 hours.
0.2 In
12:00

SE
SE

12 / 19 mph 73 / 76°F 88% 1018 mb
Low level cloud: 50%
Mid level cloud: 45%
High level cloud: 100%
Most Significant Cloud Type: low
77%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
15:00

ESE
ESE

8 / 11 mph 75 / 78°F 80% 1016 mb
Low level cloud: 85%
Mid level cloud: 13%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

E
E

9 / 12 mph 78 / 79°F 86% 1015 mb
Low level cloud: 37%
Mid level cloud: 8%
High level cloud: 0%
Most Significant Cloud Type: low
39%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

SE
SE

8 / 15 mph 70 / 71°F 94% 1015 mb
Low level cloud: 5%
Mid level cloud: 18%
High level cloud: 32%
Most Significant Cloud Type: medium
32%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Fri 31
May
00:00

ESE
ESE

9 / 16 mph 69 / 69°F 93% 1015 mb
Low level cloud: 16%
Mid level cloud: 8%
High level cloud: 80%
Most Significant Cloud Type: low
28%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

ESE
ESE

12 / 20 mph 67 / 67°F 94% 1013 mb
Low level cloud: 37%
Mid level cloud: 18%
High level cloud: 35%
Most Significant Cloud Type: low
47%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

ESE
ESE

15 / 25 mph 65 / 65°F 97% 1016 mb
Low level cloud: 52%
Mid level cloud: 46%
High level cloud: 77%
Most Significant Cloud Type: low
77%
Expect 0.2 In of precipitation over the past 3 hours.
0.2 In
09:00

SE
SE

16 / 24 mph 66 / 66°F 96% 1014 mb
Low level cloud: 77%
Mid level cloud: 31%
High level cloud: 30%
Most Significant Cloud Type: low
90%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

S
S

10 / 17 mph 73 / 77°F 91% 1014 mb
Low level cloud: 91%
Mid level cloud: 68%
High level cloud: 96%
Most Significant Cloud Type: low
100%
Expect 0.2 In of precipitation over the past 3 hours.
0.2 In
15:00

ENE
ENE

4 / 7 mph 72 / 76°F 91% 1014 mb
Low level cloud: 92%
Mid level cloud: 46%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.3 In of precipitation over the past 3 hours.
0.3 In
18:00

ENE
ENE

11 / 16 mph 66 / 66°F 98% 1014 mb
Low level cloud: 96%
Mid level cloud: 21%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

E
E

9 / 15 mph 66 / 66°F 98% 1016 mb
Low level cloud: 98%
Mid level cloud: 43%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
DayLocal TimeDirSpeed/
Gust
Temp/
Feels Like
HumidityPressureCloud AmountPrecip AmountWeather
Sat 01
Jun
00:00

SSE
SSE

14 / 29 mph 74 / 78°F 86% 1011 mb
Low level cloud: 4%
Mid level cloud: 5%
High level cloud: 17%
Most Significant Cloud Type: low
7%
0.0 In
06:00

S
S

12 / 24 mph 69 / 69°F 93% 1014 mb
Low level cloud: 37%
Mid level cloud: 25%
High level cloud: 3%
Most Significant Cloud Type: low
45%
0.0 In
12:00

SE
SE

6 / 14 mph 81 / 87°F 77% 1013 mb
Low level cloud: 86%
Mid level cloud: 7%
High level cloud: 0%
Most Significant Cloud Type: low
88%
0.0 In
18:00

S
S

8 / 16 mph 84 / 93°F 77% 1012 mb
Low level cloud: 0%
Mid level cloud: 19%
High level cloud: 33%
Most Significant Cloud Type: medium
20%
0.1 In
Sun 02
Jun
00:00

S
S

12 / 26 mph 75 / 78°F 82% 1011 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: medium
4%
0.0 In
06:00

SSE
SSE

8 / 18 mph 70 / 70°F 96% 1016 mb
Low level cloud: 27%
Mid level cloud: 44%
High level cloud: 100%
Most Significant Cloud Type: low
54%
0.0 In
12:00

ESE
ESE

6 / 12 mph 83 / 86°F 61% 1017 mb
Low level cloud: 1%
Mid level cloud: 13%
High level cloud: 2%
Most Significant Cloud Type: medium
15%
0.0 In
18:00

E
E

10 / 20 mph 70 / 70°F 95% 1013 mb
Low level cloud: 59%
Mid level cloud: 26%
High level cloud: 39%
Most Significant Cloud Type: low
72%
0.0 In
Mon 03
Jun
00:00

SE
SE

5 / 11 mph 76 / 80°F 81% 1016 mb
Low level cloud: 1%
Mid level cloud: 12%
High level cloud: 0%
Most Significant Cloud Type: medium
13%
0.0 In
06:00

E
E

6 / 13 mph 67 / 67°F 99% 1014 mb
Low level cloud: 90%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: low
100%
0.0 In
12:00

SSW
SSW

8 / 17 mph 83 / 89°F 71% 1017 mb
Low level cloud: 78%
Mid level cloud: 6%
High level cloud: 0%
Most Significant Cloud Type: low
79%
0.0 In
18:00

SE
SE

6 / 13 mph 82 / 91°F 81% 1011 mb
Low level cloud: 1%
Mid level cloud: 2%
High level cloud: 0%
Most Significant Cloud Type: low
1%
0.0 In
Tue 04
Jun
00:00

SSE
SSE

6 / 14 mph 73 / 77°F 95% 1017 mb
Low level cloud: 26%
Mid level cloud: 14%
High level cloud: 0%
Most Significant Cloud Type: low
31%
0.2 In
06:00

S
S

8 / 16 mph 69 / 69°F 97% 1012 mb
Low level cloud: 35%
Mid level cloud: 5%
High level cloud: 18%
Most Significant Cloud Type: low
39%
0.0 In
12:00

SSW
SSW

7 / 15 mph 78 / 82°F 82% 1018 mb
Low level cloud: 51%
Mid level cloud: 50%
High level cloud: 37%
Most Significant Cloud Type: low
72%
0.0 In
18:00

SSW
SSW

4 / 7 mph 83 / 92°F 81% 1010 mb
Low level cloud: 38%
Mid level cloud: 21%
High level cloud: 0%
Most Significant Cloud Type: low
45%
0.1 In
Wed 05
Jun
00:00

SE
SE

5 / 11 mph 72 / 77°F 92% 1016 mb
Low level cloud: 5%
Mid level cloud: 27%
High level cloud: 0%
Most Significant Cloud Type: medium
39%
0.2 In
06:00

NNW
NNW

4 / 8 mph 69 / 69°F 98% 1010 mb
Low level cloud: 60%
Mid level cloud: 20%
High level cloud: 32%
Most Significant Cloud Type: low
70%
0.3 In
12:00

S
S

8 / 17 mph 82 / 86°F 64% 1018 mb
Low level cloud: 20%
Mid level cloud: 28%
High level cloud: 0%
Most Significant Cloud Type: low
29%
0.0 In
18:00

ENE
ENE

12 / 24 mph 72 / 76°F 86% 1011 mb
Low level cloud: 0%
Mid level cloud: 22%
High level cloud: 16%
Most Significant Cloud Type: medium
22%
0.2 In
Thu 06
Jun
00:00

SSE
SSE

6 / 12 mph 76 / 80°F 86% 1016 mb
Low level cloud: 3%
Mid level cloud: 16%
High level cloud: 0%
Most Significant Cloud Type: medium
23%
0.0 In
06:00

NNE
NNE

6 / 13 mph 66 / 66°F 98% 1014 mb
Low level cloud: 68%
Mid level cloud: 14%
High level cloud: 7%
Most Significant Cloud Type: low
100%
0.0 In
12:00

SSW
SSW

5 / 11 mph 86 / 92°F 62% 1018 mb
Low level cloud: 21%
Mid level cloud: 14%
High level cloud: 0%
Most Significant Cloud Type: low
26%
0.0 In
18:00

NNE
NNE

8 / 17 mph 74 / 78°F 87% 1014 mb
Low level cloud: 46%
Mid level cloud: 22%
High level cloud: 32%
Most Significant Cloud Type: low
57%
0.1 In
Fri 07
Jun
00:00

WSW
WSW

2 / 5 mph 83 / 92°F 84% 1017 mb
Low level cloud: 0%
Mid level cloud: 13%
High level cloud: 0%
Most Significant Cloud Type: medium
12%
0.0 In
06:00

NE
NE

8 / 17 mph 67 / 67°F 94% 1017 mb
Low level cloud: 95%
Mid level cloud: 28%
High level cloud: 5%
Most Significant Cloud Type: low
100%
0.0 In
12:00

W
W

7 / 15 mph 87 / 94°F 61% 1018 mb
Low level cloud: 5%
Mid level cloud: 9%
High level cloud: 0%
Most Significant Cloud Type: low
8%
0.0 In
18:00

NE
NE

11 / 22 mph 75 / 79°F 89% 1016 mb
Low level cloud: 27%
Mid level cloud: 16%
High level cloud: 5%
Most Significant Cloud Type: low
33%
0.2 In
Sat 08
Jun
00:00

SW
SW

6 / 13 mph 80 / 85°F 80% 1014 mb
Low level cloud: 0%
Mid level cloud: 6%
High level cloud: 14%
Most Significant Cloud Type: medium
6%
0.0 In
06:00

NNE
NNE

5 / 11 mph 70 / 70°F 96% 1017 mb
Low level cloud: 18%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: low
19%
0.0 In
12:00

NW
NW

9 / 18 mph 89 / 99°F 65% 1013 mb
Low level cloud: 7%
Mid level cloud: 18%
High level cloud: 21%
Most Significant Cloud Type: low
15%
0.0 In
18:00

NNE
NNE

4 / 8 mph 88 / 102°F 75% 1015 mb
Low level cloud: 0%
Mid level cloud: 1%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
Sun 09
Jun
00:00

NNE
NNE

11 / 22 mph 72 / 76°F 79% 1013 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: medium
3%
0.1 In
06:00

WNW
WNW

3 / 7 mph 77 / 82°F 86% 1016 mb
Low level cloud: 0%
Mid level cloud: 10%
High level cloud: 0%
Most Significant Cloud Type: medium
10%
0.0 In
12:00

NNE
NNE

11 / 22 mph 76 / 78°F 51% 1016 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 1%
Most Significant Cloud Type: high
0%
0.0 In
18:00

W
W

4 / 8 mph 87 / 101°F 79% 1011 mb
Low level cloud: 26%
Mid level cloud: 26%
High level cloud: 0%
Most Significant Cloud Type: low
35%
0.1 In

Other Locations Near to Tyler

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