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Chongju 14 Day Long Range Forecast

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

South Korea

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

Over the next 14 days the Chongju forecast suggests the average daytime maximum temperature will be around 34°C, with a high for the two weeks of 37°C expected on the afternoon of Tuesday 8th. The average minimum temperature will be 23°C, dipping to its lowest on the morning of Friday 4th at 20°C. Expect the next 14 days have some days seeing a little precipitation and some days with rain. Current predictions suggest Saturday 12th will have the most precipitation with an accumulation of around 2.0mm. On the whole winds are likely to be light.

DayLocal TimeDirSpeed/
Gust		Temp/
Feels Like		HumidityPressureCloud AmountPrecip AmountWeather
Thu 03
Jul		18:00

SW
SW

 8 / 9 mph 88 / 94°F 64% 1009 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
21:00

SSW
SSW

 4 / 9 mph 75 / 79°F 83% 1010 mb
Low level cloud: 0%
Mid level cloud: 11%
High level cloud: 7%
Most Significant Cloud Type: medium
11%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Fri 04
Jul		00:00

S
S

 4 / 7 mph 72 / 76°F 91% 1010 mb
Low level cloud: 2%
Mid level cloud: 40%
High level cloud: 32%
Most Significant Cloud Type: medium
47%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

S
S

 3 / 5 mph 70 / 70°F 95% 1009 mb
Low level cloud: 17%
Mid level cloud: 12%
High level cloud: 19%
Most Significant Cloud Type: low
23%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

SSE
SSE

 2 / 4 mph 73 / 70°F 94% 1009 mb
Low level cloud: 16%
Mid level cloud: 7%
High level cloud: 19%
Most Significant Cloud Type: low
20%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

SW
SW

 8 / 9 mph 83 / 84°F 74% 1009 mb
Low level cloud: 17%
Mid level cloud: 4%
High level cloud: 84%
Most Significant Cloud Type: low
28%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

SW
SW

 10 / 12 mph 84 / 87°F 71% 1009 mb
Low level cloud: 21%
Mid level cloud: 15%
High level cloud: 80%
Most Significant Cloud Type: low
35%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

SW
SW

 11 / 13 mph 86 / 91°F 65% 1007 mb
Low level cloud: 1%
Mid level cloud: 74%
High level cloud: 30%
Most Significant Cloud Type: medium
77%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

SW
SW

 9 / 10 mph 85 / 90°F 76% 1006 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
21:00

SSW
SSW

 4 / 7 mph 74 / 78°F 93% 1007 mb
Low level cloud: 14%
Mid level cloud: 12%
High level cloud: 0%
Most Significant Cloud Type: low
17%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sat 05
Jul		00:00

S
S

 3 / 5 mph 71 / 71°F 97% 1007 mb
Low level cloud: 53%
Mid level cloud: 29%
High level cloud: 0%
Most Significant Cloud Type: low
63%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

S
S

 3 / 5 mph 71 / 71°F 98% 1007 mb
Low level cloud: 73%
Mid level cloud: 17%
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

S
S

 3 / 4 mph 74 / 77°F 95% 1007 mb
Low level cloud: 84%
Mid level cloud: 12%
High level cloud: 0%
Most Significant Cloud Type: low
87%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

SW
SW

 6 / 7 mph 80 / 83°F 84% 1007 mb
Low level cloud: 90%
Mid level cloud: 3%
High level cloud: 5%
Most Significant Cloud Type: low
91%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

WSW
WSW

 6 / 7 mph 88 / 92°F 70% 1006 mb
Low level cloud: 37%
Mid level cloud: 5%
High level cloud: 15%
Most Significant Cloud Type: low
40%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

WSW
WSW

 9 / 11 mph 93 / 101°F 55% 1004 mb
Low level cloud: 6%
Mid level cloud: 46%
High level cloud: 6%
Most Significant Cloud Type: medium
63%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

SW
SW

 10 / 11 mph 88 / 96°F 70% 1004 mb
Low level cloud: 0%
Mid level cloud: 19%
High level cloud: 3%
Most Significant Cloud Type: medium
19%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

SSW
SSW

 5 / 8 mph 76 / 82°F 93% 1005 mb
Low level cloud: 19%
Mid level cloud: 16%
High level cloud: 1%
Most Significant Cloud Type: low
24%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sun 06
Jul		00:00

SW
SW

 3 / 5 mph 74 / 79°F 98% 1005 mb
Low level cloud: 69%
Mid level cloud: 15%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

SSW
SSW

 3 / 5 mph 73 / 78°F 98% 1005 mb
Low level cloud: 86%
Mid level cloud: 15%
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

SSW
SSW

 3 / 4 mph 77 / 80°F 92% 1006 mb
Low level cloud: 74%
Mid level cloud: 11%
High level cloud: 0%
Most Significant Cloud Type: low
77%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

SW
SW

 6 / 6 mph 82 / 85°F 81% 1006 mb
Low level cloud: 80%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: low
80%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

WSW
WSW

 4 / 5 mph 91 / 97°F 62% 1005 mb
Low level cloud: 12%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: low
14%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

WSW
WSW

 3 / 4 mph 96 / 105°F 52% 1003 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

W
W

 5 / 5 mph 96 / 112°F 63% 1003 mb
Low level cloud: 0%
Mid level cloud: 6%
High level cloud: 0%
Most Significant Cloud Type: medium
6%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

WSW
WSW

 3 / 6 mph 80 / 87°F 86% 1004 mb
Low level cloud: 0%
Mid level cloud: 8%
High level cloud: 0%
Most Significant Cloud Type: medium
7%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Mon 07
Jul		00:00

SW
SW

 2 / 4 mph 77 / 81°F 90% 1005 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
03:00

SW
SW

 2 / 4 mph 74 / 78°F 91% 1005 mb
Low level cloud: 2%
Mid level cloud: 17%
High level cloud: 0%
Most Significant Cloud Type: medium
21%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

SW
SW

 2 / 3 mph 77 / 77°F 89% 1006 mb
Low level cloud: 1%
Mid level cloud: 14%
High level cloud: 0%
Most Significant Cloud Type: medium
16%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

N
N

 2 / 2 mph 89 / 93°F 69% 1006 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
12:00

N
N

 5 / 6 mph 95 / 105°F 56% 1005 mb
Low level cloud: 0%
Mid level cloud: 6%
High level cloud: 0%
Most Significant Cloud Type: medium
6%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

NNW
NNW

 5 / 6 mph 98 / 110°F 51% 1003 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
18:00

NW
NW

 6 / 7 mph 97 / 114°F 64% 1003 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

NW
NW

 3 / 6 mph 80 / 86°F 83% 1004 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
Tue 08
Jul		00:00

NNW
NNW

 1 / 2 mph 78 / 82°F 83% 1005 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
03:00

ENE
ENE

 1 / 3 mph 75 / 79°F 86% 1005 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
06:00

NNE
NNE

 2 / 3 mph 80 / 80°F 88% 1006 mb
Low level cloud: 2%
Mid level cloud: 17%
High level cloud: 0%
Most Significant Cloud Type: medium
22%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

NNE
NNE

 3 / 3 mph 91 / 100°F 69% 1006 mb
Low level cloud: 0%
Mid level cloud: 16%
High level cloud: 0%
Most Significant Cloud Type: medium
16%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

N
N

 5 / 6 mph 97 / 111°F 60% 1005 mb
Low level cloud: 1%
Mid level cloud: 12%
High level cloud: 0%
Most Significant Cloud Type: medium
15%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

NE
NE

 6 / 7 mph 98 / 112°F 52% 1004 mb
Low level cloud: 2%
Mid level cloud: 23%
High level cloud: 0%
Most Significant Cloud Type: medium
27%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

ENE
ENE

 5 / 6 mph 97 / 112°F 61% 1003 mb
Low level cloud: 0%
Mid level cloud: 32%
High level cloud: 0%
Most Significant Cloud Type: medium
31%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

E
E

 4 / 8 mph 81 / 84°F 63% 1005 mb
Low level cloud: 8%
Mid level cloud: 28%
High level cloud: 0%
Most Significant Cloud Type: medium
50%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Wed 09
Jul		00:00

ESE
ESE

 4 / 9 mph 78 / 80°F 63% 1005 mb
Low level cloud: 0%
Mid level cloud: 12%
High level cloud: 0%
Most Significant Cloud Type: medium
11%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

ESE
ESE

 4 / 8 mph 75 / 78°F 72% 1006 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
06:00

E
E

 4 / 8 mph 74 / 76°F 82% 1007 mb
Low level cloud: 0%
Mid level cloud: 1%
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

 7 / 9 mph 85 / 87°F 62% 1007 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
12:00

ESE
ESE

 10 / 12 mph 92 / 94°F 43% 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
15:00

ESE
ESE

 10 / 12 mph 95 / 98°F 40% 1004 mb
Low level cloud: 0%
Mid level cloud: 1%
High level cloud: 0%
Most Significant Cloud Type: medium
1%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

ESE
ESE

 6 / 8 mph 94 / 102°F 56% 1004 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
21:00

ESE
ESE

 7 / 13 mph 81 / 87°F 74% 1005 mb
Low level cloud: 0%
Mid level cloud: 9%
High level cloud: 0%
Most Significant Cloud Type: medium
9%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
DayLocal TimeDirSpeed/
Gust		Temp/
Feels Like		HumidityPressureCloud AmountPrecip AmountWeather
Thu 10
Jul		03:00

ENE
ENE

 6 / 9 mph 73 / 77°F 65% 1004 mb
Low level cloud: 10%
Mid level cloud: 19%
High level cloud: 0%
Most Significant Cloud Type: low
16%
0.0 In
09:00

ENE
ENE

 11 / 14 mph 85 / 90°F 62% 1003 mb
Low level cloud: 0%
Mid level cloud: 8%
High level cloud: 0%
Most Significant Cloud Type: medium
7%
0.0 In
15:00

E
E

 15 / 19 mph 93 / 101°F 47% 1000 mb
Low level cloud: 0%
Mid level cloud: 21%
High level cloud: 0%
Most Significant Cloud Type: medium
21%
0.0 In
21:00

ESE
ESE

 7 / 11 mph 79 / 83°F 69% 1004 mb
Low level cloud: 0%
Mid level cloud: 21%
High level cloud: 0%
Most Significant Cloud Type: medium
21%
0.0 In
Fri 11
Jul		03:00

ENE
ENE

 11 / 19 mph 75 / 79°F 79% 1002 mb
Low level cloud: 1%
Mid level cloud: 44%
High level cloud: 17%
Most Significant Cloud Type: medium
46%
0.0 In
09:00

E
E

 16 / 26 mph 82 / 87°F 72% 1003 mb
Low level cloud: 21%
Mid level cloud: 10%
High level cloud: 20%
Most Significant Cloud Type: low
27%
0.0 In
15:00

ESE
ESE

 11 / 13 mph 95 / 100°F 38% 1005 mb
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 2%
Most Significant Cloud Type: medium
1%
0.0 In
21:00

ESE
ESE

 10 / 16 mph 82 / 86°F 66% 1003 mb
Low level cloud: 0%
Mid level cloud: 15%
High level cloud: 39%
Most Significant Cloud Type: medium
16%
0.0 In
Sat 12
Jul		03:00

E
E

 4 / 7 mph 78 / 81°F 71% 1007 mb
Low level cloud: 0%
Mid level cloud: 20%
High level cloud: 6%
Most Significant Cloud Type: medium
20%
0.0 In
09:00

E
E

 12 / 20 mph 84 / 92°F 74% 1004 mb
Low level cloud: 23%
Mid level cloud: 15%
High level cloud: 97%
Most Significant Cloud Type: low
40%
0.1 In
15:00

SE
SE

 6 / 6 mph 97 / 110°F 50% 1006 mb
Low level cloud: 8%
Mid level cloud: 45%
High level cloud: 32%
Most Significant Cloud Type: medium
69%
0.0 In
21:00

E
E

 10 / 17 mph 80 / 85°F 81% 1004 mb
Low level cloud: 8%
Mid level cloud: 10%
High level cloud: 16%
Most Significant Cloud Type: low
13%
0.0 In
Sun 13
Jul		03:00

S
S

 2 / 3 mph 82 / 91°F 87% 1007 mb
Low level cloud: 12%
Mid level cloud: 14%
High level cloud: 32%
Most Significant Cloud Type: low
20%
0.0 In
09:00

ESE
ESE

 11 / 20 mph 83 / 90°F 80% 1004 mb
Low level cloud: 20%
Mid level cloud: 17%
High level cloud: 3%
Most Significant Cloud Type: low
26%
0.1 In
15:00

SE
SE

 2 / 3 mph 95 / 112°F 59% 1004 mb
Low level cloud: 18%
Mid level cloud: 65%
High level cloud: 18%
Most Significant Cloud Type: medium
100%
0.1 In
21:00

SE
SE

 3 / 6 mph 83 / 93°F 87% 1002 mb
Low level cloud: 0%
Mid level cloud: 15%
High level cloud: 0%
Most Significant Cloud Type: medium
14%
0.1 In
Mon 14
Jul		03:00

SE
SE

 2 / 4 mph 78 / 83°F 93% 1003 mb
Low level cloud: 3%
Mid level cloud: 24%
High level cloud: 7%
Most Significant Cloud Type: medium
33%
0.1 In
09:00

SE
SE

 7 / 15 mph 86 / 95°F 69% 1001 mb
Low level cloud: 0%
Mid level cloud: 30%
High level cloud: 0%
Most Significant Cloud Type: medium
29%
0.0 In
15:00

SW
SW

 14 / 27 mph 93 / 104°F 53% 1000 mb
Low level cloud: 3%
Mid level cloud: 51%
High level cloud: 14%
Most Significant Cloud Type: medium
59%
0.0 In
21:00

SW
SW

 3 / 6 mph 80 / 87°F 86% 998 mb
Low level cloud: 0%
Mid level cloud: 46%
High level cloud: 36%
Most Significant Cloud Type: medium
48%
0.1 In
Tue 15
Jul		03:00

SSW
SSW

 4 / 9 mph 75 / 80°F 98% 1002 mb
Low level cloud: 53%
Mid level cloud: 44%
High level cloud: 8%
Most Significant Cloud Type: low
69%
0.2 In
09:00

SSW
SSW

 4 / 10 mph 87 / 98°F 72% 998 mb
Low level cloud: 33%
Mid level cloud: 23%
High level cloud: 0%
Most Significant Cloud Type: low
41%
0.0 In
15:00

W
W

 7 / 15 mph 87 / 99°F 74% 1002 mb
Low level cloud: 45%
Mid level cloud: 29%
High level cloud: 0%
Most Significant Cloud Type: low
54%
0.5 In
21:00

N
N

 3 / 6 mph 86 / 100°F 83% 996 mb
Low level cloud: 0%
Mid level cloud: 21%
High level cloud: 0%
Most Significant Cloud Type: medium
21%
0.0 In
Wed 16
Jul		03:00

SSW
SSW

 2 / 4 mph 76 / 81°F 94% 1004 mb
Low level cloud: 26%
Mid level cloud: 7%
High level cloud: 0%
Most Significant Cloud Type: low
28%
0.1 In
09:00

E
E

 7 / 15 mph 89 / 96°F 58% 999 mb
Low level cloud: 0%
Mid level cloud: 8%
High level cloud: 0%
Most Significant Cloud Type: medium
8%
0.0 In
15:00

W
W

 5 / 10 mph 89 / 102°F 67% 1003 mb
Low level cloud: 32%
Mid level cloud: 45%
High level cloud: 7%
Most Significant Cloud Type: low
48%
0.0 In
21:00

ENE
ENE

 9 / 19 mph 77 / 80°F 76% 1000 mb
Low level cloud: 1%
Mid level cloud: 24%
High level cloud: 4%
Most Significant Cloud Type: medium
25%
0.0 In
Thu 17
Jul		03:00

SE
SE

 1 / 3 mph 76 / 82°F 95% 1003 mb
Low level cloud: 20%
Mid level cloud: 26%
High level cloud: 6%
Most Significant Cloud Type: low
29%
0.2 In
09:00

ENE
ENE

 14 / 29 mph 80 / 84°F 72% 1000 mb
Low level cloud: 0%
Mid level cloud: 45%
High level cloud: 12%
Most Significant Cloud Type: medium
45%
0.0 In
15:00

W
W

 5 / 11 mph 95 / 106°F 51% 1001 mb
Low level cloud: 2%
Mid level cloud: 44%
High level cloud: 20%
Most Significant Cloud Type: medium
49%
0.0 In
21:00

NE
NE

 13 / 28 mph 75 / 78°F 72% 1000 mb
Low level cloud: 0%
Mid level cloud: 11%
High level cloud: 9%
Most Significant Cloud Type: medium
11%
0.0 In
Fri 18
Jul		03:00

ESE
ESE

 2 / 5 mph 76 / 81°F 95% 1003 mb
Low level cloud: 14%
Mid level cloud: 27%
High level cloud: 100%
Most Significant Cloud Type: low
35%
0.2 In
09:00

ENE
ENE

 13 / 26 mph 82 / 86°F 67% 1000 mb
Low level cloud: 5%
Mid level cloud: 20%
High level cloud: 0%
Most Significant Cloud Type: medium
32%
0.0 In
15:00

SE
SE

 6 / 13 mph 93 / 104°F 53% 1003 mb
Low level cloud: 17%
Mid level cloud: 17%
High level cloud: 33%
Most Significant Cloud Type: low
26%
0.0 In
21:00

ENE
ENE

 7 / 14 mph 78 / 82°F 74% 1000 mb
Low level cloud: 0%
Mid level cloud: 31%
High level cloud: 0%
Most Significant Cloud Type: medium
31%
0.0 In

Other Locations Near to Chongju

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