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Willow Springs 14 Day Long Range Forecast

14 Day weather providing an extended long range forecast outlook for Willow Springs

Missouri, United States Of America

Long range weather outlook for Willow Springs includes 14 day forecast summary:

Over the next 14 days the Willow Springs forecast suggests the average daytime maximum temperature will be around 28°C, with a high for the two weeks of 32°C expected on the afternoon of Tuesday 21st. The mean minimum temperature will be 16°C, dipping to its lowest on the morning of Thursday 23rd at 10°C. Expect the following 14 days ahead to have some days seeing a little precipitation and some days with rain. It looks like Monday 27th will have the most precipitation with an accumulation of around 16.0mm. On the whole winds are likely to be moderate.

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

SSE
SSE

6 / 11 mph 61 / 61°F 95% 1010 mb
Low level cloud: 15%
Mid level cloud: 53%
High level cloud: 69%
Most Significant Cloud Type: medium
98%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

SSW
SSW

2 / 5 mph 60 / 60°F 94% 1009 mb
Low level cloud: 0%
Mid level cloud: 44%
High level cloud: 0%
Most Significant Cloud Type: medium
43%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

SSE
SSE

4 / 7 mph 63 / 60°F 96% 1010 mb
Low level cloud: 24%
Mid level cloud: 49%
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

SSE
SSE

7 / 8 mph 67 / 67°F 83% 1010 mb
Low level cloud: 79%
Mid level cloud: 30%
High level cloud: 5%
Most Significant Cloud Type: low
90%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

SSE
SSE

6 / 7 mph 75 / 77°F 64% 1008 mb
Low level cloud: 68%
Mid level cloud: 23%
High level cloud: 32%
Most Significant Cloud Type: low
79%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

S
S

4 / 6 mph 78 / 77°F 66% 1007 mb
Low level cloud: 36%
Mid level cloud: 29%
High level cloud: 56%
Most Significant Cloud Type: low
53%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
18:00

SE
SE

2 / 2 mph 74 / 76°F 86% 1007 mb
Low level cloud: 1%
Mid level cloud: 37%
High level cloud: 78%
Most Significant Cloud Type: medium
43%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
21:00

SSE
SSE

4 / 8 mph 62 / 62°F 97% 1009 mb
Low level cloud: 10%
Mid level cloud: 28%
High level cloud: 99%
Most Significant Cloud Type: medium
60%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
Sat 18
May
15:00

NW
NW

5 / 8 mph 79 / 79°F 69% 1010 mb
Low level cloud: 0%
Mid level cloud: 20%
High level cloud: 0%
Most Significant Cloud Type: medium
20%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

NW
NW

4 / 8 mph 79 / 79°F 76% 1011 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
21:00

N
N

5 / 10 mph 68 / 67°F 84% 1013 mb
Low level cloud: 0%
Mid level cloud: 12%
High level cloud: 0%
Most Significant Cloud Type: medium
12%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sun 19
May
00:00

NE
NE

4 / 9 mph 64 / 64°F 95% 1014 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
03:00

E
E

2 / 5 mph 64 / 64°F 95% 1014 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: medium
2%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

ESE
ESE

2 / 5 mph 66 / 64°F 93% 1015 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: medium
3%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

SSE
SSE

5 / 6 mph 80 / 80°F 65% 1015 mb
Low level cloud: 0%
Mid level cloud: 3%
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

S
S

8 / 10 mph 85 / 84°F 51% 1014 mb
Low level cloud: 2%
Mid level cloud: 9%
High level cloud: 0%
Most Significant Cloud Type: medium
13%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

S
S

8 / 9 mph 86 / 85°F 49% 1013 mb
Low level cloud: 0%
Mid level cloud: 17%
High level cloud: 0%
Most Significant Cloud Type: medium
17%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

SE
SE

8 / 14 mph 79 / 80°F 70% 1011 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: medium
3%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

SE
SE

7 / 15 mph 69 / 69°F 82% 1012 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 20
May
00:00

SE
SE

6 / 12 mph 66 / 66°F 85% 1013 mb
Low level cloud: 0%
Mid level cloud: 16%
High level cloud: 99%
Most Significant Cloud Type: medium
19%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

SSE
SSE

5 / 11 mph 64 / 64°F 89% 1012 mb
Low level cloud: 0%
Mid level cloud: 22%
High level cloud: 31%
Most Significant Cloud Type: medium
23%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

SSW
SSW

6 / 11 mph 68 / 65°F 91% 1013 mb
Low level cloud: 1%
Mid level cloud: 57%
High level cloud: 83%
Most Significant Cloud Type: medium
63%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

SSE
SSE

6 / 9 mph 70 / 67°F 93% 1012 mb
Low level cloud: 18%
Mid level cloud: 19%
High level cloud: 77%
Most Significant Cloud Type: low
33%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

SSW
SSW

10 / 11 mph 84 / 83°F 55% 1012 mb
Low level cloud: 24%
Mid level cloud: 14%
High level cloud: 10%
Most Significant Cloud Type: low
30%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

SSE
SSE

12 / 14 mph 85 / 86°F 55% 1010 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
18:00

SSE
SSE

11 / 17 mph 81 / 82°F 69% 1009 mb
Low level cloud: 0%
Mid level cloud: 17%
High level cloud: 0%
Most Significant Cloud Type: medium
17%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

SSE
SSE

9 / 17 mph 73 / 77°F 75% 1010 mb
Low level cloud: 0%
Mid level cloud: 18%
High level cloud: 1%
Most Significant Cloud Type: medium
17%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Tue 21
May
00:00

S
S

8 / 16 mph 70 / 70°F 81% 1009 mb
Low level cloud: 0%
Mid level cloud: 11%
High level cloud: 20%
Most Significant Cloud Type: medium
12%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

S
S

9 / 17 mph 70 / 70°F 77% 1008 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 6%
Most Significant Cloud Type: high
6%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

SSE
SSE

9 / 17 mph 69 / 68°F 87% 1009 mb
Low level cloud: 1%
Mid level cloud: 1%
High level cloud: 0%
Most Significant Cloud Type: low
1%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

S
S

15 / 18 mph 79 / 81°F 67% 1008 mb
Low level cloud: 5%
Mid level cloud: 2%
High level cloud: 0%
Most Significant Cloud Type: low
5%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

S
S

17 / 20 mph 87 / 87°F 46% 1007 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 1%
Most Significant Cloud Type: medium
3%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

S
S

15 / 17 mph 89 / 89°F 41% 1005 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
18:00

SSW
SSW

13 / 24 mph 81 / 82°F 56% 1003 mb
Low level cloud: 0%
Mid level cloud: 10%
High level cloud: 0%
Most Significant Cloud Type: medium
9%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

SSW
SSW

12 / 20 mph 77 / 79°F 60% 1005 mb
Low level cloud: 15%
Mid level cloud: 45%
High level cloud: 0%
Most Significant Cloud Type: medium
86%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Wed 22
May
00:00

S
S

9 / 18 mph 68 / 68°F 96% 1006 mb
Low level cloud: 10%
Mid level cloud: 23%
High level cloud: 1%
Most Significant Cloud Type: low
17%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
03:00

S
S

9 / 17 mph 67 / 67°F 96% 1006 mb
Low level cloud: 20%
Mid level cloud: 6%
High level cloud: 0%
Most Significant Cloud Type: low
22%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
06:00

S
S

11 / 17 mph 69 / 68°F 98% 1007 mb
Low level cloud: 85%
Mid level cloud: 6%
High level cloud: 5%
Most Significant Cloud Type: low
87%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

SSW
SSW

10 / 15 mph 72 / 76°F 98% 1007 mb
Low level cloud: 97%
Mid level cloud: 3%
High level cloud: 8%
Most Significant Cloud Type: low
99%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

SSW
SSW

15 / 18 mph 81 / 84°F 69% 1006 mb
Low level cloud: 83%
Mid level cloud: 0%
High level cloud: 56%
Most Significant Cloud Type: low
90%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

SW
SW

14 / 17 mph 85 / 87°F 66% 1006 mb
Low level cloud: 38%
Mid level cloud: 25%
High level cloud: 99%
Most Significant Cloud Type: low
59%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

NW
NW

13 / 20 mph 68 / 67°F 90% 1009 mb
Low level cloud: 59%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: low
60%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
21:00

NW
NW

11 / 15 mph 63 / 63°F 74% 1012 mb
Low level cloud: 74%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
74%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Thu 23
May
00:00

NNW
NNW

9 / 15 mph 58 / 56°F 73% 1013 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

NNW
NNW

6 / 11 mph 52 / 50°F 97% 1015 mb
Low level cloud: 42%
Mid level cloud: 0%
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

N
N

5 / 8 mph 54 / 51°F 94% 1016 mb
Low level cloud: 90%
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
09:00

NNW
NNW

6 / 7 mph 64 / 62°F 68% 1018 mb
Low level cloud: 32%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
32%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

NNW
NNW

6 / 6 mph 73 / 76°F 49% 1018 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
15:00

NNW
NNW

6 / 6 mph 77 / 76°F 44% 1017 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
18:00

N
N

4 / 6 mph 73 / 76°F 67% 1016 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
21:00

NNE
NNE

4 / 8 mph 59 / 59°F 79% 1019 mb
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 0%
Most Significant Cloud Type: medium
1%
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

SE
SE

6 / 12 mph 60 / 60°F 98% 1017 mb
Low level cloud: 13%
Mid level cloud: 19%
High level cloud: 7%
Most Significant Cloud Type: low
100%
0.0 In
06:00

SW
SW

8 / 17 mph 64 / 64°F 97% 1010 mb
Low level cloud: 50%
Mid level cloud: 44%
High level cloud: 93%
Most Significant Cloud Type: low
76%
0.0 In
12:00

SSW
SSW

15 / 30 mph 87 / 90°F 50% 1005 mb
Low level cloud: 0%
Mid level cloud: 6%
High level cloud: 0%
Most Significant Cloud Type: medium
5%
0.0 In
18:00

SSW
SSW

9 / 19 mph 83 / 93°F 87% 1007 mb
Low level cloud: 27%
Mid level cloud: 45%
High level cloud: 9%
Most Significant Cloud Type: low
43%
0.0 In
Sat 25
May
00:00

SSE
SSE

12 / 24 mph 72 / 76°F 80% 1009 mb
Low level cloud: 0%
Mid level cloud: 6%
High level cloud: 0%
Most Significant Cloud Type: medium
5%
0.0 In
06:00

S
S

4 / 9 mph 67 / 67°F 96% 1009 mb
Low level cloud: 5%
Mid level cloud: 27%
High level cloud: 99%
Most Significant Cloud Type: medium
44%
0.0 In
12:00

SSW
SSW

15 / 32 mph 87 / 89°F 47% 1010 mb
Low level cloud: 0%
Mid level cloud: 28%
High level cloud: 0%
Most Significant Cloud Type: medium
28%
0.0 In
18:00

SSE
SSE

13 / 27 mph 79 / 83°F 72% 1010 mb
Low level cloud: 0%
Mid level cloud: 46%
High level cloud: 3%
Most Significant Cloud Type: medium
45%
0.0 In
Sun 26
May
00:00

S
S

10 / 21 mph 72 / 76°F 80% 1010 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: medium
3%
0.0 In
06:00

SSW
SSW

12 / 24 mph 72 / 72°F 82% 1011 mb
Low level cloud: 1%
Mid level cloud: 8%
High level cloud: 7%
Most Significant Cloud Type: medium
11%
0.0 In
12:00

S
S

16 / 33 mph 87 / 90°F 47% 1010 mb
Low level cloud: 0%
Mid level cloud: 17%
High level cloud: 1%
Most Significant Cloud Type: medium
17%
0.0 In
18:00

S
S

14 / 29 mph 75 / 78°F 76% 1008 mb
Low level cloud: 3%
Mid level cloud: 19%
High level cloud: 41%
Most Significant Cloud Type: medium
29%
0.0 In
Mon 27
May
00:00

SSW
SSW

6 / 13 mph 73 / 77°F 70% 1011 mb
Low level cloud: 0%
Mid level cloud: 30%
High level cloud: 58%
Most Significant Cloud Type: medium
32%
0.0 In
06:00

N
N

2 / 5 mph 65 / 65°F 99% 1015 mb
Low level cloud: 100%
Mid level cloud: 19%
High level cloud: 9%
Most Significant Cloud Type: low
100%
0.8 In
12:00

SSW
SSW

11 / 24 mph 85 / 88°F 53% 1013 mb
Low level cloud: 29%
Mid level cloud: 45%
High level cloud: 0%
Most Significant Cloud Type: low
44%
0.0 In
18:00

SW
SW

4 / 9 mph 74 / 78°F 94% 1012 mb
Low level cloud: 43%
Mid level cloud: 45%
High level cloud: 0%
Most Significant Cloud Type: low
58%
0.2 In
Tue 28
May
00:00

W
W

6 / 13 mph 67 / 67°F 98% 1015 mb
Low level cloud: 27%
Mid level cloud: 46%
High level cloud: 100%
Most Significant Cloud Type: low
54%
0.7 In
06:00

SSE
SSE

2 / 5 mph 63 / 63°F 99% 1015 mb
Low level cloud: 70%
Mid level cloud: 45%
High level cloud: 100%
Most Significant Cloud Type: low
97%
0.4 In
12:00

E
E

4 / 9 mph 70 / 70°F 93% 1017 mb
Low level cloud: 80%
Mid level cloud: 44%
High level cloud: 0%
Most Significant Cloud Type: low
95%
0.3 In
18:00

NNE
NNE

5 / 10 mph 70 / 70°F 91% 1013 mb
Low level cloud: 19%
Mid level cloud: 45%
High level cloud: 99%
Most Significant Cloud Type: low
46%
0.3 In
Wed 29
May
00:00

NNW
NNW

11 / 22 mph 60 / 60°F 98% 1017 mb
Low level cloud: 99%
Mid level cloud: 19%
High level cloud: 0%
Most Significant Cloud Type: low
100%
0.5 In
06:00

NE
NE

5 / 10 mph 62 / 62°F 99% 1014 mb
Low level cloud: 97%
Mid level cloud: 24%
High level cloud: 0%
Most Significant Cloud Type: low
100%
0.6 In
12:00

N
N

10 / 21 mph 70 / 70°F 53% 1021 mb
Low level cloud: 50%
Mid level cloud: 44%
High level cloud: 0%
Most Significant Cloud Type: low
65%
0.0 In
18:00

N
N

9 / 19 mph 60 / 60°F 91% 1015 mb
Low level cloud: 70%
Mid level cloud: 22%
High level cloud: 0%
Most Significant Cloud Type: low
77%
0.1 In
Thu 30
May
00:00

NE
NE

5 / 11 mph 54 / 53°F 88% 1022 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
06:00

NNW
NNW

7 / 14 mph 54 / 52°F 95% 1018 mb
Low level cloud: 18%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: low
19%
0.0 In
12:00

ESE
ESE

7 / 15 mph 73 / 76°F 40% 1023 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
18:00

WNW
WNW

9 / 19 mph 68 / 68°F 69% 1016 mb
Low level cloud: 0%
Mid level cloud: 17%
High level cloud: 0%
Most Significant Cloud Type: medium
16%
0.0 In
Fri 31
May
00:00

ESE
ESE

5 / 11 mph 56 / 55°F 91% 1022 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: medium
3%
0.0 In
06:00

WNW
WNW

5 / 11 mph 56 / 55°F 86% 1018 mb
Low level cloud: 0%
Mid level cloud: 12%
High level cloud: 0%
Most Significant Cloud Type: medium
11%
0.0 In
12:00

SE
SE

9 / 20 mph 74 / 77°F 50% 1022 mb
Low level cloud: 0%
Mid level cloud: 9%
High level cloud: 100%
Most Significant Cloud Type: medium
12%
0.0 In
18:00

NNW
NNW

9 / 18 mph 66 / 66°F 80% 1018 mb
Low level cloud: 11%
Mid level cloud: 12%
High level cloud: 0%
Most Significant Cloud Type: low
14%
0.0 In
Sat 01
Jun
00:00

SE
SE

6 / 12 mph 60 / 60°F 91% 1021 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 2%
Most Significant Cloud Type: medium
3%
0.0 In
06:00

N
N

4 / 10 mph 50 / 48°F 90% 1024 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
12:00

SSE
SSE

10 / 20 mph 77 / 79°F 56% 1020 mb
Low level cloud: 0%
Mid level cloud: 43%
High level cloud: 32%
Most Significant Cloud Type: medium
44%
0.0 In
18:00

N
N

4 / 10 mph 65 / 65°F 65% 1023 mb
Low level cloud: 0%
Mid level cloud: 25%
High level cloud: 0%
Most Significant Cloud Type: medium
24%
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