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Cluddaun 14 Day Long Range Forecast

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

Mayo, Ireland

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

The next 14 day outlook for Cluddaun shows the average daytime maximum temperature will be around 15°C, with a high for the two weeks of 18°C expected on the afternoon of Sunday 2nd. The average minimum temperature will be 9°C, dipping to its lowest on the morning of Tuesday 4th at 7°C. Expect the coming 14 days to have most days seeing a little rain. The indicators are that Sunday 26th will have the most precipitation with an accumulation of around 6.0mm. On the whole winds are likely to be moderate.

DayLocal TimeDirSpeed/
Gust		Temp/
Feels Like		HumidityCloud AmountPrecip AmountWeather
Sun 26
May		03:00

SE
SE

 11 / 15 mph 50 / 46°F 95%
Low level cloud: 96%
Mid level cloud: 97%
High level cloud: 21%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

SE
SE

 7 / 9 mph 50 / 47°F 96%
Low level cloud: 92%
Mid level cloud: 100%
High level cloud: 19%
Most Significant Cloud Type: low
100%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
09:00

SE
SE

 5 / 7 mph 51 / 49°F 95%
Low level cloud: 84%
Mid level cloud: 76%
High level cloud: 62%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

SSW
SSW

 3 / 4 mph 54 / 54°F 90%
Low level cloud: 89%
Mid level cloud: 100%
High level cloud: 63%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

WNW
WNW

 12 / 16 mph 54 / 51°F 91%
Low level cloud: 88%
Mid level cloud: 58%
High level cloud: 27%
Most Significant Cloud Type: low
100%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
18:00

W
W

 13 / 17 mph 55 / 50°F 84%
Low level cloud: 42%
Mid level cloud: 46%
High level cloud: 10%
Most Significant Cloud Type: low
59%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

WSW
WSW

 10 / 15 mph 50 / 46°F 84%
Low level cloud: 62%
Mid level cloud: 47%
High level cloud: 2%
Most Significant Cloud Type: low
78%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Mon 27
May		00:00

SW
SW

 7 / 13 mph 45 / 41°F 91%
Low level cloud: 33%
Mid level cloud: 35%
High level cloud: 2%
Most Significant Cloud Type: low
45%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

S
S

 6 / 11 mph 45 / 42°F 93%
Low level cloud: 50%
Mid level cloud: 77%
High level cloud: 5%
Most Significant Cloud Type: low
77%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

S
S

 7 / 10 mph 49 / 46°F 91%
Low level cloud: 76%
Mid level cloud: 46%
High level cloud: 3%
Most Significant Cloud Type: low
92%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

S
S

 9 / 13 mph 51 / 47°F 93%
Low level cloud: 93%
Mid level cloud: 45%
High level cloud: 1%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

SW
SW

 15 / 18 mph 57 / 53°F 81%
Low level cloud: 92%
Mid level cloud: 28%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

SW
SW

 16 / 19 mph 59 / 55°F 72%
Low level cloud: 67%
Mid level cloud: 46%
High level cloud: 34%
Most Significant Cloud Type: low
87%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

SW
SW

 12 / 15 mph 57 / 53°F 76%
Low level cloud: 42%
Mid level cloud: 46%
High level cloud: 9%
Most Significant Cloud Type: low
59%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

SSW
SSW

 6 / 13 mph 49 / 45°F 89%
Low level cloud: 9%
Mid level cloud: 14%
High level cloud: 100%
Most Significant Cloud Type: medium
41%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Tue 28
May		00:00

SSE
SSE

 6 / 12 mph 46 / 43°F 92%
Low level cloud: 13%
Mid level cloud: 70%
High level cloud: 0%
Most Significant Cloud Type: medium
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

SSE
SSE

 10 / 15 mph 50 / 46°F 98%
Low level cloud: 96%
Mid level cloud: 82%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
06:00

S
S

 9 / 15 mph 53 / 50°F 98%
Low level cloud: 88%
Mid level cloud: 7%
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

SW
SW

 11 / 15 mph 56 / 53°F 91%
Low level cloud: 76%
Mid level cloud: 47%
High level cloud: 32%
Most Significant Cloud Type: low
96%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

SSW
SSW

 15 / 18 mph 62 / 61°F 77%
Low level cloud: 72%
Mid level cloud: 25%
High level cloud: 0%
Most Significant Cloud Type: low
81%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

SW
SW

 19 / 24 mph 62 / 61°F 72%
Low level cloud: 69%
Mid level cloud: 30%
High level cloud: 3%
Most Significant Cloud Type: low
79%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

SW
SW

 15 / 21 mph 54 / 50°F 84%
Low level cloud: 70%
Mid level cloud: 53%
High level cloud: 45%
Most Significant Cloud Type: low
93%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

SW
SW

 17 / 25 mph 53 / 47°F 90%
Low level cloud: 100%
Mid level cloud: 44%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Wed 29
May		00:00

WSW
WSW

 14 / 17 mph 54 / 50°F 91%
Low level cloud: 84%
Mid level cloud: 46%
High level cloud: 5%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

W
W

 12 / 17 mph 52 / 48°F 92%
Low level cloud: 89%
Mid level cloud: 100%
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

W
W

 13 / 23 mph 51 / 47°F 94%
Low level cloud: 98%
Mid level cloud: 65%
High level cloud: 4%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

WNW
WNW

 17 / 22 mph 54 / 50°F 93%
Low level cloud: 94%
Mid level cloud: 24%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

NW
NW

 20 / 26 mph 58 / 54°F 85%
Low level cloud: 31%
Mid level cloud: 46%
High level cloud: 0%
Most Significant Cloud Type: low
47%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

NW
NW

 20 / 27 mph 60 / 59°F 86%
Low level cloud: 59%
Mid level cloud: 36%
High level cloud: 0%
Most Significant Cloud Type: low
71%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
18:00

NW
NW

 17 / 21 mph 58 / 54°F 81%
Low level cloud: 1%
Mid level cloud: 46%
High level cloud: 0%
Most Significant Cloud Type: medium
49%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

NW
NW

 16 / 19 mph 56 / 51°F 92%
Low level cloud: 79%
Mid level cloud: 34%
High level cloud: 3%
Most Significant Cloud Type: low
90%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Thu 30
May		00:00

NNW
NNW

 19 / 31 mph 52 / 46°F 90%
Low level cloud: 93%
Mid level cloud: 32%
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

NW
NW

 20 / 31 mph 50 / 43°F 89%
Low level cloud: 86%
Mid level cloud: 13%
High level cloud: 16%
Most Significant Cloud Type: low
92%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

NW
NW

 18 / 31 mph 49 / 42°F 78%
Low level cloud: 57%
Mid level cloud: 100%
High level cloud: 33%
Most Significant Cloud Type: low
95%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

NNW
NNW

 20 / 28 mph 52 / 46°F 68%
Low level cloud: 81%
Mid level cloud: 0%
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

NNW
NNW

 20 / 23 mph 56 / 51°F 63%
Low level cloud: 26%
Mid level cloud: 1%
High level cloud: 17%
Most Significant Cloud Type: low
28%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

NNW
NNW

 19 / 22 mph 58 / 53°F 67%
Low level cloud: 23%
Mid level cloud: 5%
High level cloud: 44%
Most Significant Cloud Type: low
29%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

NW
NW

 17 / 19 mph 56 / 51°F 75%
Low level cloud: 25%
Mid level cloud: 46%
High level cloud: 3%
Most Significant Cloud Type: low
41%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

NW
NW

 14 / 17 mph 54 / 48°F 80%
Low level cloud: 54%
Mid level cloud: 43%
High level cloud: 0%
Most Significant Cloud Type: low
69%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Fri 31
May		00:00

NW
NW

 12 / 15 mph 52 / 48°F 80%
Low level cloud: 85%
Mid level cloud: 49%
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

NW
NW

 14 / 21 mph 51 / 46°F 89%
Low level cloud: 86%
Mid level cloud: 45%
High level cloud: 5%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

NW
NW

 15 / 25 mph 50 / 45°F 89%
Low level cloud: 80%
Mid level cloud: 46%
High level cloud: 0%
Most Significant Cloud Type: low
96%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

NNW
NNW

 16 / 23 mph 53 / 48°F 84%
Low level cloud: 63%
Mid level cloud: 48%
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

NNW
NNW

 15 / 19 mph 56 / 52°F 80%
Low level cloud: 85%
Mid level cloud: 4%
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

NNW
NNW

 16 / 19 mph 58 / 54°F 69%
Low level cloud: 66%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
66%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

NNW
NNW

 15 / 17 mph 57 / 52°F 74%
Low level cloud: 62%
Mid level cloud: 0%
High level cloud: 36%
Most Significant Cloud Type: low
66%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

NNW
NNW

 12 / 14 mph 54 / 50°F 71%
Low level cloud: 89%
Mid level cloud: 0%
High level cloud: 9%
Most Significant Cloud Type: low
89%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sat 01
Jun		00:00

NNW
NNW

 11 / 16 mph 51 / 46°F 72%
Low level cloud: 91%
Mid level cloud: 0%
High level cloud: 46%
Most Significant Cloud Type: low
96%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

NW
NW

 10 / 14 mph 50 / 46°F 77%
Low level cloud: 87%
Mid level cloud: 2%
High level cloud: 100%
Most Significant Cloud Type: low
99%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

NW
NW

 9 / 13 mph 51 / 48°F 75%
Low level cloud: 66%
Mid level cloud: 83%
High level cloud: 47%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

NW
NW

 7 / 9 mph 52 / 49°F 85%
Low level cloud: 97%
Mid level cloud: 75%
High level cloud: 1%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

NW
NW

 13 / 17 mph 53 / 49°F 83%
Low level cloud: 95%
Mid level cloud: 48%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

NW
NW

 13 / 17 mph 54 / 50°F 88%
Low level cloud: 99%
Mid level cloud: 85%
High level cloud: 16%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

NNW
NNW

 12 / 16 mph 52 / 48°F 93%
Low level cloud: 99%
Mid level cloud: 94%
High level cloud: 15%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

N
N

 11 / 17 mph 52 / 47°F 91%
Low level cloud: 85%
Mid level cloud: 0%
High level cloud: 33%
Most Significant Cloud Type: low
89%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
DayLocal TimeDirSpeed/
Gust		Temp/
Feels Like		HumidityCloud AmountPrecip AmountWeather
Sun 02
Jun		00:00

WSW
WSW

 7 / 13 mph 54 / 52°F 97%
Low level cloud: 94%
Mid level cloud: 97%
High level cloud: 16%
Most Significant Cloud Type: low
100%
0.0 In
06:00

WNW
WNW

 7 / 14 mph 55 / 53°F 90%
Low level cloud: 92%
Mid level cloud: 3%
High level cloud: 44%
Most Significant Cloud Type: low
98%
0.0 In
12:00

NNW
NNW

 11 / 22 mph 57 / 55°F 90%
Low level cloud: 91%
Mid level cloud: 22%
High level cloud: 13%
Most Significant Cloud Type: low
100%
0.0 In
18:00

N
N

 12 / 25 mph 60 / 60°F 76%
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 96%
Most Significant Cloud Type: medium
6%
0.0 In
Mon 03
Jun		00:00

N
N

 16 / 33 mph 52 / 47°F 92%
Low level cloud: 100%
Mid level cloud: 44%
High level cloud: 6%
Most Significant Cloud Type: low
100%
0.0 In
06:00

W
W

 6 / 13 mph 54 / 52°F 96%
Low level cloud: 93%
Mid level cloud: 60%
High level cloud: 33%
Most Significant Cloud Type: low
100%
0.0 In
12:00

NNW
NNW

 17 / 37 mph 55 / 50°F 78%
Low level cloud: 72%
Mid level cloud: 22%
High level cloud: 0%
Most Significant Cloud Type: low
79%
0.0 In
18:00

NNW
NNW

 13 / 26 mph 57 / 55°F 70%
Low level cloud: 37%
Mid level cloud: 15%
High level cloud: 65%
Most Significant Cloud Type: low
50%
0.0 In
Tue 04
Jun		00:00

NW
NW

 14 / 30 mph 51 / 46°F 88%
Low level cloud: 69%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: low
69%
0.0 In
06:00

WSW
WSW

 8 / 17 mph 49 / 46°F 89%
Low level cloud: 6%
Mid level cloud: 0%
High level cloud: 100%
Most Significant Cloud Type: medium
20%
0.0 In
12:00

NNW
NNW

 16 / 33 mph 55 / 50°F 76%
Low level cloud: 95%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
95%
0.0 In
18:00

WNW
WNW

 14 / 30 mph 56 / 52°F 81%
Low level cloud: 57%
Mid level cloud: 21%
High level cloud: 3%
Most Significant Cloud Type: low
64%
0.0 In
Wed 05
Jun		00:00

NNW
NNW

 12 / 26 mph 53 / 49°F 78%
Low level cloud: 95%
Mid level cloud: 5%
High level cloud: 12%
Most Significant Cloud Type: low
98%
0.0 In
06:00

WNW
WNW

 8 / 18 mph 51 / 47°F 82%
Low level cloud: 57%
Mid level cloud: 8%
High level cloud: 33%
Most Significant Cloud Type: low
63%
0.0 In
12:00

N
N

 6 / 12 mph 59 / 59°F 60%
Low level cloud: 0%
Mid level cloud: 22%
High level cloud: 29%
Most Significant Cloud Type: medium
23%
0.0 In
18:00

NW
NW

 5 / 10 mph 55 / 54°F 84%
Low level cloud: 92%
Mid level cloud: 30%
High level cloud: 0%
Most Significant Cloud Type: low
100%
0.0 In
Thu 06
Jun		00:00

SSW
SSW

 3 / 7 mph 50 / 50°F 76%
Low level cloud: 0%
Mid level cloud: 64%
High level cloud: 100%
Most Significant Cloud Type: medium
68%
0.0 In
06:00

WSW
WSW

 11 / 24 mph 55 / 51°F 92%
Low level cloud: 100%
Mid level cloud: 10%
High level cloud: 7%
Most Significant Cloud Type: low
100%
0.0 In
12:00

WSW
WSW

 9 / 20 mph 60 / 60°F 76%
Low level cloud: 91%
Mid level cloud: 20%
High level cloud: 0%
Most Significant Cloud Type: low
98%
0.0 In
18:00

WSW
WSW

 12 / 26 mph 55 / 51°F 92%
Low level cloud: 100%
Mid level cloud: 88%
High level cloud: 0%
Most Significant Cloud Type: low
100%
0.0 In
Fri 07
Jun		00:00

WNW
WNW

 4 / 7 mph 46 / 44°F 85%
Low level cloud: 21%
Mid level cloud: 0%
High level cloud: 17%
Most Significant Cloud Type: low
23%
0.0 In
06:00

W
W

 9 / 18 mph 53 / 50°F 90%
Low level cloud: 96%
Mid level cloud: 12%
High level cloud: 32%
Most Significant Cloud Type: low
100%
0.0 In
12:00

N
N

 4 / 9 mph 59 / 59°F 58%
Low level cloud: 13%
Mid level cloud: 0%
High level cloud: 2%
Most Significant Cloud Type: low
13%
0.0 In
18:00

WSW
WSW

 11 / 23 mph 59 / 57°F 81%
Low level cloud: 70%
Mid level cloud: 5%
High level cloud: 6%
Most Significant Cloud Type: low
71%
0.0 In
Sat 08
Jun		00:00

SSW
SSW

 3 / 7 mph 46 / 45°F 83%
Low level cloud: 0%
Mid level cloud: 29%
High level cloud: 87%
Most Significant Cloud Type: medium
32%
0.0 In
06:00

SSW
SSW

 8 / 16 mph 54 / 52°F 86%
Low level cloud: 68%
Mid level cloud: 29%
High level cloud: 1%
Most Significant Cloud Type: low
78%
0.0 In
12:00

S
S

 11 / 22 mph 59 / 59°F 88%
Low level cloud: 90%
Mid level cloud: 58%
High level cloud: 17%
Most Significant Cloud Type: low
100%
0.0 In
18:00

SSW
SSW

 12 / 24 mph 58 / 56°F 80%
Low level cloud: 96%
Mid level cloud: 46%
High level cloud: 100%
Most Significant Cloud Type: low
100%
0.0 In
Sun 09
Jun		00:00

S
S

 9 / 20 mph 57 / 55°F 94%
Low level cloud: 87%
Mid level cloud: 31%
High level cloud: 9%
Most Significant Cloud Type: low
99%
0.0 In
06:00

S
S

 7 / 14 mph 49 / 46°F 94%
Low level cloud: 82%
Mid level cloud: 100%
High level cloud: 100%
Most Significant Cloud Type: low
100%
0.1 In
12:00

SSW
SSW

 10 / 21 mph 60 / 60°F 93%
Low level cloud: 96%
Mid level cloud: 80%
High level cloud: 100%
Most Significant Cloud Type: low
100%
0.0 In
18:00

SSW
SSW

 10 / 21 mph 55 / 52°F 81%
Low level cloud: 19%
Mid level cloud: 17%
High level cloud: 5%
Most Significant Cloud Type: low
25%
0.1 In
Mon 10
Jun		00:00

SW
SW

 9 / 19 mph 58 / 56°F 97%
Low level cloud: 99%
Mid level cloud: 63%
High level cloud: 100%
Most Significant Cloud Type: low
100%
0.1 In
06:00

SSW
SSW

 8 / 17 mph 49 / 45°F 91%
Low level cloud: 34%
Mid level cloud: 21%
High level cloud: 11%
Most Significant Cloud Type: low
43%
0.0 In
12:00

W
W

 11 / 24 mph 59 / 57°F 92%
Low level cloud: 86%
Mid level cloud: 46%
High level cloud: 10%
Most Significant Cloud Type: low
100%
0.1 In
18:00

W
W

 13 / 26 mph 53 / 49°F 83%
Low level cloud: 39%
Mid level cloud: 25%
High level cloud: 0%
Most Significant Cloud Type: low
47%
0.1 In

Other Locations Near to Cluddaun

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