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Butaritari Atoll 14 Day Long Range Forecast

14 Day weather providing an extended long range forecast outlook for Butaritari Atoll

Kiribati

Long range weather outlook for Butaritari Atoll includes 14 day forecast summary:

Taking a look at Butaritari Atoll over the coming two weeks and the average daytime maximum temperature will be around 32°C, with a high for the two weeks of 33°C expected on the afternoon of Sunday 5th. The mean minimum temperature will be 27°C, dipping to its lowest on the morning of Saturday 11th at 26°C. Expect the coming 14 days to have some days seeing a little precipitation and some days with rain. It looks like Friday 10th will have the most precipitation with an accumulation of around 18.0mm. On the whole winds are likely to be moderate.

DayLocal TimeDirSpeed/
Gust		Temp/
Feels Like		HumidityPressureCloud AmountPrecip AmountWeather
Wed 01
May		15:00

E
E

 12 / 19 mph 87 / 105°F 84% 1006 mb
Low level cloud: 11%
Mid level cloud: 25%
High level cloud: 4%
Most Significant Cloud Type: low
20%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
18:00

ENE
ENE

 14 / 20 mph 86 / 99°F 80% 1007 mb
Low level cloud: 40%
Mid level cloud: 24%
High level cloud: 2%
Most Significant Cloud Type: low
48%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
21:00

E
E

 14 / 19 mph 84 / 95°F 80% 1009 mb
Low level cloud: 34%
Mid level cloud: 18%
High level cloud: 4%
Most Significant Cloud Type: low
40%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Thu 02
May		00:00

E
E

 14 / 19 mph 84 / 93°F 80% 1007 mb
Low level cloud: 44%
Mid level cloud: 23%
High level cloud: 2%
Most Significant Cloud Type: low
52%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

ENE
ENE

 15 / 21 mph 82 / 90°F 80% 1005 mb
Low level cloud: 60%
Mid level cloud: 23%
High level cloud: 0%
Most Significant Cloud Type: low
68%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

ENE
ENE

 13 / 21 mph 82 / 88°F 80% 1006 mb
Low level cloud: 49%
Mid level cloud: 24%
High level cloud: 0%
Most Significant Cloud Type: low
57%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
09:00

ENE
ENE

 15 / 19 mph 84 / 94°F 80% 1008 mb
Low level cloud: 36%
Mid level cloud: 31%
High level cloud: 0%
Most Significant Cloud Type: low
46%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

ENE
ENE

 16 / 21 mph 87 / 100°F 78% 1008 mb
Low level cloud: 38%
Mid level cloud: 30%
High level cloud: 0%
Most Significant Cloud Type: low
48%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

ENE
ENE

 15 / 18 mph 88 / 104°F 80% 1006 mb
Low level cloud: 31%
Mid level cloud: 26%
High level cloud: 7%
Most Significant Cloud Type: low
41%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

E
E

 13 / 15 mph 87 / 101°F 82% 1007 mb
Low level cloud: 17%
Mid level cloud: 41%
High level cloud: 4%
Most Significant Cloud Type: low
31%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

E
E

 13 / 18 mph 85 / 96°F 83% 1008 mb
Low level cloud: 54%
Mid level cloud: 27%
High level cloud: 1%
Most Significant Cloud Type: low
62%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
Fri 03
May		00:00

ENE
ENE

 13 / 19 mph 84 / 95°F 81% 1007 mb
Low level cloud: 57%
Mid level cloud: 44%
High level cloud: 3%
Most Significant Cloud Type: low
73%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
03:00

ENE
ENE

 14 / 20 mph 83 / 91°F 81% 1005 mb
Low level cloud: 63%
Mid level cloud: 31%
High level cloud: 6%
Most Significant Cloud Type: low
74%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
06:00

ENE
ENE

 15 / 25 mph 81 / 89°F 82% 1006 mb
Low level cloud: 63%
Mid level cloud: 42%
High level cloud: 7%
Most Significant Cloud Type: low
79%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

ENE
ENE

 16 / 20 mph 85 / 96°F 82% 1007 mb
Low level cloud: 69%
Mid level cloud: 29%
High level cloud: 4%
Most Significant Cloud Type: low
79%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

ENE
ENE

 14 / 17 mph 88 / 106°F 82% 1007 mb
Low level cloud: 62%
Mid level cloud: 28%
High level cloud: 3%
Most Significant Cloud Type: low
72%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

ENE
ENE

 14 / 17 mph 90 / 111°F 82% 1005 mb
Low level cloud: 68%
Mid level cloud: 23%
High level cloud: 3%
Most Significant Cloud Type: low
76%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

ENE
ENE

 15 / 17 mph 88 / 106°F 82% 1006 mb
Low level cloud: 63%
Mid level cloud: 22%
High level cloud: 2%
Most Significant Cloud Type: low
70%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

ENE
ENE

 16 / 20 mph 85 / 98°F 81% 1007 mb
Low level cloud: 59%
Mid level cloud: 14%
High level cloud: 2%
Most Significant Cloud Type: low
64%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sat 04
May		00:00

E
E

 15 / 23 mph 85 / 97°F 82% 1006 mb
Low level cloud: 20%
Mid level cloud: 25%
High level cloud: 4%
Most Significant Cloud Type: low
28%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
03:00

E
E

 15 / 22 mph 83 / 91°F 78% 1004 mb
Low level cloud: 67%
Mid level cloud: 19%
High level cloud: 0%
Most Significant Cloud Type: low
73%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

E
E

 15 / 25 mph 82 / 89°F 80% 1005 mb
Low level cloud: 55%
Mid level cloud: 18%
High level cloud: 1%
Most Significant Cloud Type: low
61%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

E
E

 16 / 22 mph 85 / 98°F 83% 1007 mb
Low level cloud: 69%
Mid level cloud: 21%
High level cloud: 0%
Most Significant Cloud Type: low
76%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

E
E

 15 / 22 mph 89 / 110°F 84% 1006 mb
Low level cloud: 69%
Mid level cloud: 20%
High level cloud: 3%
Most Significant Cloud Type: low
76%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
15:00

E
E

 15 / 23 mph 91 / 114°F 80% 1005 mb
Low level cloud: 47%
Mid level cloud: 21%
High level cloud: 9%
Most Significant Cloud Type: low
55%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
18:00

E
E

 15 / 20 mph 89 / 109°F 81% 1006 mb
Low level cloud: 52%
Mid level cloud: 22%
High level cloud: 7%
Most Significant Cloud Type: low
60%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

E
E

 14 / 21 mph 86 / 99°F 79% 1008 mb
Low level cloud: 46%
Mid level cloud: 24%
High level cloud: 1%
Most Significant Cloud Type: low
54%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
Sun 05
May		00:00

E
E

 13 / 19 mph 85 / 97°F 80% 1007 mb
Low level cloud: 43%
Mid level cloud: 17%
High level cloud: 0%
Most Significant Cloud Type: low
49%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
03:00

E
E

 14 / 21 mph 83 / 92°F 80% 1005 mb
Low level cloud: 20%
Mid level cloud: 20%
High level cloud: 0%
Most Significant Cloud Type: low
27%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
06:00

E
E

 15 / 24 mph 82 / 88°F 79% 1005 mb
Low level cloud: 24%
Mid level cloud: 22%
High level cloud: 0%
Most Significant Cloud Type: low
31%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
09:00

E
E

 14 / 21 mph 86 / 99°F 81% 1007 mb
Low level cloud: 11%
Mid level cloud: 25%
High level cloud: 2%
Most Significant Cloud Type: low
19%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
12:00

E
E

 14 / 21 mph 90 / 112°F 80% 1007 mb
Low level cloud: 45%
Mid level cloud: 21%
High level cloud: 8%
Most Significant Cloud Type: low
52%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
15:00

E
E

 13 / 16 mph 92 / 120°F 82% 1006 mb
Low level cloud: 64%
Mid level cloud: 20%
High level cloud: 7%
Most Significant Cloud Type: low
72%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

E
E

 13 / 20 mph 90 / 112°F 80% 1007 mb
Low level cloud: 18%
Mid level cloud: 24%
High level cloud: 2%
Most Significant Cloud Type: low
26%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
21:00

E
E

 14 / 18 mph 87 / 101°F 79% 1009 mb
Low level cloud: 46%
Mid level cloud: 22%
High level cloud: 0%
Most Significant Cloud Type: low
53%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Mon 06
May		00:00

E
E

 13 / 15 mph 85 / 96°F 78% 1008 mb
Low level cloud: 45%
Mid level cloud: 23%
High level cloud: 0%
Most Significant Cloud Type: low
53%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

E
E

 12 / 17 mph 83 / 92°F 78% 1006 mb
Low level cloud: 51%
Mid level cloud: 23%
High level cloud: 0%
Most Significant Cloud Type: low
58%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

E
E

 13 / 20 mph 82 / 90°F 81% 1007 mb
Low level cloud: 43%
Mid level cloud: 31%
High level cloud: 0%
Most Significant Cloud Type: low
54%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

E
E

 13 / 17 mph 85 / 97°F 79% 1008 mb
Low level cloud: 37%
Mid level cloud: 27%
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

 11 / 16 mph 89 / 108°F 80% 1008 mb
Low level cloud: 43%
Mid level cloud: 30%
High level cloud: 0%
Most Significant Cloud Type: low
53%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
15:00

E
E

 11 / 14 mph 91 / 114°F 80% 1007 mb
Low level cloud: 57%
Mid level cloud: 30%
High level cloud: 1%
Most Significant Cloud Type: low
67%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

ESE
ESE

 11 / 16 mph 89 / 109°F 81% 1007 mb
Low level cloud: 51%
Mid level cloud: 27%
High level cloud: 2%
Most Significant Cloud Type: low
61%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
21:00

E
E

 12 / 15 mph 86 / 100°F 79% 1009 mb
Low level cloud: 52%
Mid level cloud: 18%
High level cloud: 1%
Most Significant Cloud Type: low
58%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Tue 07
May		00:00

E
E

 12 / 14 mph 85 / 96°F 80% 1008 mb
Low level cloud: 49%
Mid level cloud: 23%
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

 11 / 16 mph 83 / 91°F 79% 1006 mb
Low level cloud: 49%
Mid level cloud: 25%
High level cloud: 0%
Most Significant Cloud Type: low
57%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

ENE
ENE

 11 / 18 mph 82 / 89°F 79% 1006 mb
Low level cloud: 52%
Mid level cloud: 18%
High level cloud: 0%
Most Significant Cloud Type: low
58%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

ENE
ENE

 11 / 16 mph 85 / 98°F 82% 1009 mb
Low level cloud: 13%
Mid level cloud: 21%
High level cloud: 3%
Most Significant Cloud Type: low
21%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
12:00

ENE
ENE

 11 / 16 mph 88 / 106°F 80% 1008 mb
Low level cloud: 2%
Mid level cloud: 26%
High level cloud: 7%
Most Significant Cloud Type: medium
31%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
15:00

E
E

 10 / 15 mph 90 / 110°F 77% 1006 mb
Low level cloud: 1%
Mid level cloud: 28%
High level cloud: 10%
Most Significant Cloud Type: medium
30%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
18:00

E
E

 11 / 13 mph 88 / 105°F 79% 1008 mb
Low level cloud: 36%
Mid level cloud: 26%
High level cloud: 17%
Most Significant Cloud Type: low
47%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

E
E

 11 / 13 mph 86 / 98°F 78% 1010 mb
Low level cloud: 35%
Mid level cloud: 16%
High level cloud: 4%
Most Significant Cloud Type: low
40%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
DayLocal TimeDirSpeed/
Gust		Temp/
Feels Like		HumidityPressureCloud AmountPrecip AmountWeather
Wed 08
May		00:00

ENE
ENE

 8 / 16 mph 84 / 92°F 74% 1009 mb
Low level cloud: 19%
Mid level cloud: 26%
High level cloud: 16%
Most Significant Cloud Type: low
30%
0.0 In
06:00

ENE
ENE

 10 / 20 mph 82 / 88°F 78% 1007 mb
Low level cloud: 45%
Mid level cloud: 19%
High level cloud: 0%
Most Significant Cloud Type: low
51%
0.0 In
12:00

E
E

 4 / 9 mph 89 / 107°F 77% 1009 mb
Low level cloud: 6%
Mid level cloud: 20%
High level cloud: 3%
Most Significant Cloud Type: medium
37%
0.0 In
18:00

E
E

 5 / 11 mph 86 / 99°F 80% 1009 mb
Low level cloud: 12%
Mid level cloud: 49%
High level cloud: 33%
Most Significant Cloud Type: medium
83%
0.0 In
Thu 09
May		00:00

E
E

 16 / 33 mph 85 / 96°F 80% 1009 mb
Low level cloud: 52%
Mid level cloud: 23%
High level cloud: 24%
Most Significant Cloud Type: low
63%
0.0 In
06:00

ENE
ENE

 15 / 31 mph 80 / 86°F 78% 1008 mb
Low level cloud: 37%
Mid level cloud: 45%
High level cloud: 99%
Most Significant Cloud Type: low
64%
0.0 In
12:00

ENE
ENE

 17 / 35 mph 87 / 102°F 78% 1009 mb
Low level cloud: 65%
Mid level cloud: 46%
High level cloud: 33%
Most Significant Cloud Type: low
84%
0.0 In
18:00

ENE
ENE

 16 / 33 mph 87 / 101°F 81% 1009 mb
Low level cloud: 60%
Mid level cloud: 45%
High level cloud: 4%
Most Significant Cloud Type: low
76%
0.0 In
Fri 10
May		00:00

ENE
ENE

 14 / 29 mph 84 / 93°F 81% 1010 mb
Low level cloud: 72%
Mid level cloud: 21%
High level cloud: 17%
Most Significant Cloud Type: low
81%
0.2 In
06:00

ENE
ENE

 11 / 23 mph 80 / 86°F 80% 1009 mb
Low level cloud: 62%
Mid level cloud: 26%
High level cloud: 20%
Most Significant Cloud Type: low
73%
0.1 In
12:00

ENE
ENE

 12 / 26 mph 87 / 104°F 83% 1010 mb
Low level cloud: 17%
Mid level cloud: 43%
High level cloud: 53%
Most Significant Cloud Type: low
38%
0.3 In
18:00

NE
NE

 11 / 23 mph 88 / 105°F 79% 1010 mb
Low level cloud: 17%
Mid level cloud: 44%
High level cloud: 31%
Most Significant Cloud Type: low
35%
0.5 In
Sat 11
May		00:00

NNE
NNE

 8 / 17 mph 83 / 93°F 81% 1011 mb
Low level cloud: 34%
Mid level cloud: 46%
High level cloud: 32%
Most Significant Cloud Type: low
53%
0.9 In
06:00

NE
NE

 15 / 31 mph 79 / 84°F 87% 1009 mb
Low level cloud: 47%
Mid level cloud: 74%
High level cloud: 100%
Most Significant Cloud Type: low
85%
0.7 In
12:00

NE
NE

 9 / 19 mph 87 / 103°F 80% 1011 mb
Low level cloud: 25%
Mid level cloud: 45%
High level cloud: 11%
Most Significant Cloud Type: low
42%
0.7 In
18:00

ENE
ENE

 6 / 13 mph 85 / 100°F 89% 1009 mb
Low level cloud: 63%
Mid level cloud: 65%
High level cloud: 33%
Most Significant Cloud Type: low
89%
0.7 In
Sun 12
May		00:00

ENE
ENE

 4 / 8 mph 83 / 91°F 79% 1011 mb
Low level cloud: 16%
Mid level cloud: 31%
High level cloud: 40%
Most Significant Cloud Type: low
31%
0.4 In
06:00

NNW
NNW

 3 / 7 mph 80 / 84°F 74% 1009 mb
Low level cloud: 21%
Mid level cloud: 30%
High level cloud: 33%
Most Significant Cloud Type: low
35%
1.0 In
12:00

E
E

 7 / 15 mph 87 / 99°F 75% 1011 mb
Low level cloud: 38%
Mid level cloud: 18%
High level cloud: 32%
Most Significant Cloud Type: low
48%
0.1 In
18:00

SSE
SSE

 3 / 7 mph 87 / 98°F 75% 1009 mb
Low level cloud: 44%
Mid level cloud: 10%
High level cloud: 9%
Most Significant Cloud Type: low
48%
0.0 In
Mon 13
May		00:00

E
E

 6 / 13 mph 84 / 94°F 76% 1010 mb
Low level cloud: 37%
Mid level cloud: 9%
High level cloud: 68%
Most Significant Cloud Type: low
47%
0.0 In
06:00

SW
SW

 2 / 5 mph 82 / 86°F 70% 1008 mb
Low level cloud: 11%
Mid level cloud: 8%
High level cloud: 6%
Most Significant Cloud Type: low
15%
0.0 In
12:00

E
E

 9 / 19 mph 88 / 107°F 82% 1010 mb
Low level cloud: 21%
Mid level cloud: 21%
High level cloud: 32%
Most Significant Cloud Type: low
32%
0.1 In
18:00

SE
SE

 5 / 10 mph 87 / 100°F 76% 1009 mb
Low level cloud: 28%
Mid level cloud: 20%
High level cloud: 32%
Most Significant Cloud Type: low
38%
0.1 In
Tue 14
May		00:00

E
E

 7 / 15 mph 85 / 95°F 75% 1009 mb
Low level cloud: 38%
Mid level cloud: 17%
High level cloud: 5%
Most Significant Cloud Type: low
44%
0.2 In
06:00

SSE
SSE

 7 / 15 mph 82 / 88°F 74% 1008 mb
Low level cloud: 54%
Mid level cloud: 17%
High level cloud: 0%
Most Significant Cloud Type: low
59%
0.0 In
12:00

E
E

 7 / 15 mph 89 / 106°F 78% 1010 mb
Low level cloud: 3%
Mid level cloud: 14%
High level cloud: 2%
Most Significant Cloud Type: medium
22%
0.0 In
18:00

SE
SE

 7 / 15 mph 89 / 105°F 75% 1009 mb
Low level cloud: 57%
Mid level cloud: 27%
High level cloud: 6%
Most Significant Cloud Type: low
67%
0.0 In
Wed 15
May		00:00

ESE
ESE

 9 / 18 mph 85 / 95°F 74% 1010 mb
Low level cloud: 67%
Mid level cloud: 14%
High level cloud: 0%
Most Significant Cloud Type: low
71%
0.1 In
06:00

E
E

 6 / 14 mph 82 / 88°F 72% 1008 mb
Low level cloud: 59%
Mid level cloud: 12%
High level cloud: 0%
Most Significant Cloud Type: low
62%
0.0 In
12:00

E
E

 12 / 24 mph 88 / 103°F 75% 1010 mb
Low level cloud: 65%
Mid level cloud: 6%
High level cloud: 2%
Most Significant Cloud Type: low
67%
0.0 In
18:00

E
E

 9 / 19 mph 90 / 108°F 77% 1010 mb
Low level cloud: 40%
Mid level cloud: 43%
High level cloud: 6%
Most Significant Cloud Type: low
55%
0.0 In
Thu 16
May		00:00

E
E

 15 / 31 mph 85 / 97°F 78% 1010 mb
Low level cloud: 45%
Mid level cloud: 16%
High level cloud: 8%
Most Significant Cloud Type: low
51%
0.1 In
06:00

ENE
ENE

 13 / 26 mph 83 / 90°F 76% 1009 mb
Low level cloud: 66%
Mid level cloud: 11%
High level cloud: 0%
Most Significant Cloud Type: low
70%
0.0 In
12:00

ENE
ENE

 17 / 36 mph 88 / 106°F 80% 1010 mb
Low level cloud: 60%
Mid level cloud: 14%
High level cloud: 12%
Most Significant Cloud Type: low
66%
0.1 In
18:00

ENE
ENE

 12 / 25 mph 90 / 111°F 79% 1010 mb
Low level cloud: 10%
Mid level cloud: 19%
High level cloud: 5%
Most Significant Cloud Type: low
17%
0.2 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