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Dam Side 14 Day Long Range Forecast

14 Day weather providing an extended long range forecast outlook for Dam Side

Lancashire, United Kingdom

Long range weather outlook for Dam Side includes 14 day forecast summary:

Taking a look at Dam Side over the coming two weeks and the average daytime maximum temperature will be around 16°C, with a high for the two weeks of 20°C expected on the afternoon of Saturday 20th. The mean minimum temperature will be 11°C, dipping to its lowest on the morning of Saturday 13th at 10°C. The fortnight ahead will have some days seeing a little precipitation and some days with rain. Current predictions suggest Thursday 11th will have the most precipitation with an accumulation of around 19.0mm. On the whole winds are likely to be moderate.

DayLocal TimeDirSpeed/
Gust
Temp/
Feels Like
HumidityPressureCloud AmountPrecip AmountWeather
Thu 11
Sep
12:00

WSW
WSW

22 / 34 mph 58 / 53°F 78% 997 mb
Low level cloud: 78%
Mid level cloud: 23%
High level cloud: 20%
Most Significant Cloud Type: low
88%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
15:00

WSW
WSW

23 / 35 mph 59 / 55°F 76% 997 mb
Low level cloud: 84%
Mid level cloud: 46%
High level cloud: 80%
Most Significant Cloud Type: low
100%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
18:00

WSW
WSW

20 / 31 mph 58 / 53°F 78% 998 mb
Low level cloud: 30%
Mid level cloud: 30%
High level cloud: 32%
Most Significant Cloud Type: low
44%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
21:00

WSW
WSW

20 / 35 mph 56 / 51°F 81% 999 mb
Low level cloud: 29%
Mid level cloud: 45%
High level cloud: 97%
Most Significant Cloud Type: low
56%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
Fri 12
Sep
00:00

WSW
WSW

19 / 32 mph 53 / 48°F 81% 1000 mb
Low level cloud: 57%
Mid level cloud: 46%
High level cloud: 79%
Most Significant Cloud Type: low
82%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
03:00

W
W

21 / 39 mph 51 / 45°F 81% 1001 mb
Low level cloud: 64%
Mid level cloud: 44%
High level cloud: 98%
Most Significant Cloud Type: low
91%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
06:00

W
W

19 / 40 mph 50 / 44°F 76% 1003 mb
Low level cloud: 74%
Mid level cloud: 44%
High level cloud: 7%
Most Significant Cloud Type: low
90%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
09:00

WSW
WSW

20 / 32 mph 54 / 48°F 78% 1004 mb
Low level cloud: 41%
Mid level cloud: 43%
High level cloud: 4%
Most Significant Cloud Type: low
56%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
12:00

WSW
WSW

20 / 29 mph 57 / 52°F 76% 1006 mb
Low level cloud: 39%
Mid level cloud: 32%
High level cloud: 2%
Most Significant Cloud Type: low
50%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
15:00

SW
SW

18 / 26 mph 59 / 55°F 76% 1006 mb
Low level cloud: 49%
Mid level cloud: 21%
High level cloud: 17%
Most Significant Cloud Type: low
58%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
18:00

SW
SW

16 / 23 mph 57 / 53°F 80% 1006 mb
Low level cloud: 33%
Mid level cloud: 45%
High level cloud: 19%
Most Significant Cloud Type: low
51%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
21:00

S
S

12 / 19 mph 54 / 51°F 85% 1005 mb
Low level cloud: 19%
Mid level cloud: 44%
High level cloud: 15%
Most Significant Cloud Type: low
36%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
Sat 13
Sep
00:00

SE
SE

15 / 20 mph 52 / 48°F 91% 1003 mb
Low level cloud: 75%
Mid level cloud: 44%
High level cloud: 20%
Most Significant Cloud Type: low
93%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

SW
SW

15 / 27 mph 50 / 45°F 81% 1003 mb
Low level cloud: 80%
Mid level cloud: 17%
High level cloud: 15%
Most Significant Cloud Type: low
87%
Expect 0.3 In of precipitation over the past 3 hours.
0.3 In
06:00

SW
SW

15 / 29 mph 49 / 44°F 82% 1003 mb
Low level cloud: 52%
Mid level cloud: 24%
High level cloud: 17%
Most Significant Cloud Type: low
62%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

SSW
SSW

19 / 30 mph 53 / 47°F 79% 1004 mb
Low level cloud: 48%
Mid level cloud: 32%
High level cloud: 33%
Most Significant Cloud Type: low
63%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

SW
SW

20 / 28 mph 56 / 52°F 76% 1004 mb
Low level cloud: 97%
Mid level cloud: 48%
High level cloud: 19%
Most Significant Cloud Type: low
100%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
15:00

WSW
WSW

19 / 26 mph 58 / 54°F 81% 1004 mb
Low level cloud: 86%
Mid level cloud: 80%
High level cloud: 39%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

W
W

19 / 28 mph 56 / 52°F 80% 1005 mb
Low level cloud: 60%
Mid level cloud: 46%
High level cloud: 100%
Most Significant Cloud Type: low
88%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
21:00

W
W

13 / 22 mph 54 / 50°F 80% 1007 mb
Low level cloud: 7%
Mid level cloud: 16%
High level cloud: 47%
Most Significant Cloud Type: low
18%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
Sun 14
Sep
00:00

W
W

9 / 16 mph 52 / 49°F 84% 1009 mb
Low level cloud: 40%
Mid level cloud: 9%
High level cloud: 0%
Most Significant Cloud Type: low
42%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

WSW
WSW

8 / 14 mph 52 / 50°F 86% 1009 mb
Low level cloud: 54%
Mid level cloud: 11%
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

SW
SW

6 / 9 mph 53 / 51°F 87% 1009 mb
Low level cloud: 80%
Mid level cloud: 4%
High level cloud: 22%
Most Significant Cloud Type: low
83%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

SSE
SSE

9 / 11 mph 56 / 53°F 85% 1008 mb
Low level cloud: 3%
Mid level cloud: 0%
High level cloud: 71%
Most Significant Cloud Type: medium
12%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

SE
SE

17 / 20 mph 59 / 55°F 77% 1005 mb
Low level cloud: 3%
Mid level cloud: 44%
High level cloud: 100%
Most Significant Cloud Type: medium
57%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

E
E

15 / 20 mph 54 / 49°F 91% 1000 mb
Low level cloud: 49%
Mid level cloud: 81%
High level cloud: 0%
Most Significant Cloud Type: low
77%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
18:00

SE
SE

20 / 28 mph 56 / 51°F 94% 994 mb
Low level cloud: 98%
Mid level cloud: 54%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.2 In of precipitation over the past 3 hours.
0.2 In
21:00

SW
SW

25 / 36 mph 59 / 54°F 89% 992 mb
Low level cloud: 45%
Mid level cloud: 69%
High level cloud: 0%
Most Significant Cloud Type: low
69%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
Mon 15
Sep
00:00

SW
SW

20 / 37 mph 54 / 49°F 88% 991 mb
Low level cloud: 38%
Mid level cloud: 46%
High level cloud: 10%
Most Significant Cloud Type: low
54%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
03:00

SW
SW

19 / 36 mph 53 / 48°F 88% 989 mb
Low level cloud: 94%
Mid level cloud: 88%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
06:00

WSW
WSW

17 / 34 mph 52 / 47°F 86% 989 mb
Low level cloud: 88%
Mid level cloud: 45%
High level cloud: 32%
Most Significant Cloud Type: low
100%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
09:00

W
W

13 / 22 mph 55 / 51°F 87% 990 mb
Low level cloud: 56%
Mid level cloud: 75%
High level cloud: 52%
Most Significant Cloud Type: low
88%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
12:00

W
W

22 / 30 mph 58 / 54°F 84% 992 mb
Low level cloud: 92%
Mid level cloud: 32%
High level cloud: 67%
Most Significant Cloud Type: low
100%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
15:00

WNW
WNW

23 / 31 mph 60 / 59°F 84% 994 mb
Low level cloud: 60%
Mid level cloud: 46%
High level cloud: 22%
Most Significant Cloud Type: low
78%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
18:00

NW
NW

16 / 19 mph 58 / 54°F 81% 998 mb
Low level cloud: 55%
Mid level cloud: 74%
High level cloud: 1%
Most Significant Cloud Type: low
81%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

NW
NW

14 / 21 mph 56 / 52°F 79% 1001 mb
Low level cloud: 0%
Mid level cloud: 28%
High level cloud: 0%
Most Significant Cloud Type: medium
27%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Tue 16
Sep
00:00

NW
NW

10 / 15 mph 55 / 53°F 76% 1005 mb
Low level cloud: 0%
Mid level cloud: 30%
High level cloud: 0%
Most Significant Cloud Type: medium
31%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

NW
NW

11 / 21 mph 53 / 50°F 81% 1008 mb
Low level cloud: 0%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: medium
5%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

WNW
WNW

13 / 25 mph 52 / 47°F 85% 1010 mb
Low level cloud: 0%
Mid level cloud: 5%
High level cloud: 7%
Most Significant Cloud Type: medium
4%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

WNW
WNW

18 / 30 mph 56 / 51°F 77% 1013 mb
Low level cloud: 5%
Mid level cloud: 3%
High level cloud: 6%
Most Significant Cloud Type: low
7%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

WNW
WNW

19 / 24 mph 59 / 56°F 74% 1015 mb
Low level cloud: 50%
Mid level cloud: 0%
High level cloud: 1%
Most Significant Cloud Type: low
50%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

W
W

17 / 20 mph 62 / 61°F 76% 1016 mb
Low level cloud: 50%
Mid level cloud: 0%
High level cloud: 100%
Most Significant Cloud Type: low
62%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

W
W

12 / 14 mph 59 / 57°F 81% 1017 mb
Low level cloud: 28%
Mid level cloud: 0%
High level cloud: 56%
Most Significant Cloud Type: low
34%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

W
W

8 / 13 mph 57 / 55°F 84% 1018 mb
Low level cloud: 13%
Mid level cloud: 31%
High level cloud: 0%
Most Significant Cloud Type: low
23%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Wed 17
Sep
00:00

WSW
WSW

7 / 13 mph 55 / 53°F 86% 1018 mb
Low level cloud: 33%
Mid level cloud: 13%
High level cloud: 56%
Most Significant Cloud Type: low
43%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

SSW
SSW

6 / 11 mph 54 / 53°F 89% 1018 mb
Low level cloud: 64%
Mid level cloud: 26%
High level cloud: 32%
Most Significant Cloud Type: low
77%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

SSE
SSE

8 / 13 mph 53 / 51°F 91% 1017 mb
Low level cloud: 33%
Mid level cloud: 30%
High level cloud: 63%
Most Significant Cloud Type: low
51%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

SE
SE

11 / 14 mph 57 / 55°F 83% 1015 mb
Low level cloud: 88%
Mid level cloud: 58%
High level cloud: 89%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

SSE
SSE

16 / 21 mph 56 / 52°F 94% 1013 mb
Low level cloud: 100%
Mid level cloud: 99%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
15:00

SSW
SSW

13 / 19 mph 58 / 56°F 97% 1011 mb
Low level cloud: 100%
Mid level cloud: 97%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.2 In of precipitation over the past 3 hours.
0.2 In
18:00

SW
SW

21 / 31 mph 62 / 62°F 97% 1012 mb
Low level cloud: 100%
Mid level cloud: 89%
High level cloud: 6%
Most Significant Cloud Type: low
100%
Expect 0.2 In of precipitation over the past 3 hours.
0.2 In
21:00

WSW
WSW

15 / 23 mph 60 / 60°F 90% 1014 mb
Low level cloud: 19%
Mid level cloud: 44%
High level cloud: 11%
Most Significant Cloud Type: low
35%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
DayLocal TimeDirSpeed/
Gust
Temp/
Feels Like
HumidityPressureCloud AmountPrecip AmountWeather
Thu 18
Sep
00:00

NW
NW

10 / 21 mph 52 / 48°F 83% 1019 mb
Low level cloud: 6%
Mid level cloud: 3%
High level cloud: 5%
Most Significant Cloud Type: low
7%
0.0 In
06:00

WNW
WNW

23 / 49 mph 56 / 50°F 81% 1012 mb
Low level cloud: 88%
Mid level cloud: 6%
High level cloud: 0%
Most Significant Cloud Type: low
90%
0.0 In
12:00

W
W

20 / 42 mph 56 / 52°F 83% 1012 mb
Low level cloud: 88%
Mid level cloud: 35%
High level cloud: 0%
Most Significant Cloud Type: low
100%
0.0 In
18:00

W
W

8 / 17 mph 57 / 55°F 73% 1018 mb
Low level cloud: 20%
Mid level cloud: 1%
High level cloud: 6%
Most Significant Cloud Type: low
21%
0.0 In
Fri 19
Sep
00:00

SW
SW

5 / 11 mph 51 / 49°F 79% 1014 mb
Low level cloud: 49%
Mid level cloud: 26%
High level cloud: 100%
Most Significant Cloud Type: low
70%
0.0 In
06:00

ESE
ESE

7 / 15 mph 51 / 49°F 76% 1024 mb
Low level cloud: 67%
Mid level cloud: 3%
High level cloud: 32%
Most Significant Cloud Type: low
72%
0.0 In
12:00

S
S

8 / 17 mph 62 / 62°F 76% 1023 mb
Low level cloud: 96%
Mid level cloud: 80%
High level cloud: 0%
Most Significant Cloud Type: low
100%
0.0 In
18:00

S
S

6 / 13 mph 66 / 66°F 90% 1019 mb
Low level cloud: 22%
Mid level cloud: 29%
High level cloud: 33%
Most Significant Cloud Type: low
36%
0.0 In
Sat 20
Sep
00:00

SSE
SSE

9 / 18 mph 57 / 55°F 86% 1020 mb
Low level cloud: 79%
Mid level cloud: 12%
High level cloud: 0%
Most Significant Cloud Type: low
82%
0.0 In
06:00

SE
SE

5 / 11 mph 56 / 55°F 89% 1017 mb
Low level cloud: 0%
Mid level cloud: 25%
High level cloud: 20%
Most Significant Cloud Type: medium
25%
0.0 In
12:00

SSE
SSE

13 / 28 mph 70 / 70°F 65% 1014 mb
Low level cloud: 0%
Mid level cloud: 42%
High level cloud: 26%
Most Significant Cloud Type: medium
42%
0.0 In
18:00

ENE
ENE

5 / 10 mph 64 / 64°F 75% 1015 mb
Low level cloud: 0%
Mid level cloud: 38%
High level cloud: 99%
Most Significant Cloud Type: medium
41%
0.0 In
Sun 21
Sep
00:00

WSW
WSW

18 / 38 mph 62 / 62°F 93% 1012 mb
Low level cloud: 86%
Mid level cloud: 44%
High level cloud: 63%
Most Significant Cloud Type: low
100%
0.0 In
06:00

NW
NW

7 / 15 mph 55 / 53°F 87% 1018 mb
Low level cloud: 52%
Mid level cloud: 45%
High level cloud: 5%
Most Significant Cloud Type: low
68%
0.0 In
12:00

WSW
WSW

17 / 36 mph 61 / 61°F 82% 1013 mb
Low level cloud: 21%
Mid level cloud: 70%
High level cloud: 100%
Most Significant Cloud Type: medium
100%
0.0 In
18:00

NNW
NNW

7 / 14 mph 61 / 61°F 82% 1024 mb
Low level cloud: 19%
Mid level cloud: 30%
High level cloud: 0%
Most Significant Cloud Type: low
28%
0.0 In
Mon 22
Sep
00:00

NW
NW

16 / 34 mph 54 / 49°F 82% 1017 mb
Low level cloud: 32%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: low
33%
0.1 In
06:00

NNE
NNE

4 / 8 mph 54 / 54°F 84% 1027 mb
Low level cloud: 14%
Mid level cloud: 45%
High level cloud: 0%
Most Significant Cloud Type: medium
84%
0.0 In
12:00

WNW
WNW

18 / 37 mph 57 / 53°F 75% 1025 mb
Low level cloud: 76%
Mid level cloud: 3%
High level cloud: 5%
Most Significant Cloud Type: low
77%
0.0 In
18:00

N
N

2 / 5 mph 60 / 60°F 82% 1027 mb
Low level cloud: 21%
Mid level cloud: 44%
High level cloud: 6%
Most Significant Cloud Type: low
37%
0.0 In
Tue 23
Sep
00:00

WNW
WNW

7 / 15 mph 53 / 50°F 83% 1027 mb
Low level cloud: 6%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: low
7%
0.0 In
06:00

NE
NE

9 / 19 mph 51 / 47°F 88% 1027 mb
Low level cloud: 49%
Mid level cloud: 18%
High level cloud: 14%
Most Significant Cloud Type: low
57%
0.0 In
12:00

W
W

3 / 6 mph 63 / 63°F 75% 1027 mb
Low level cloud: 5%
Mid level cloud: 4%
High level cloud: 4%
Most Significant Cloud Type: low
6%
0.0 In
18:00

NE
NE

12 / 26 mph 57 / 54°F 79% 1025 mb
Low level cloud: 67%
Mid level cloud: 33%
High level cloud: 14%
Most Significant Cloud Type: low
80%
0.0 In
Wed 24
Sep
00:00

ESE
ESE

4 / 9 mph 58 / 58°F 83% 1025 mb
Low level cloud: 0%
Mid level cloud: 20%
High level cloud: 8%
Most Significant Cloud Type: medium
20%
0.0 In
06:00

NNE
NNE

9 / 18 mph 50 / 47°F 83% 1023 mb
Low level cloud: 10%
Mid level cloud: 12%
High level cloud: 33%
Most Significant Cloud Type: low
17%
0.0 In
12:00

ESE
ESE

8 / 17 mph 58 / 56°F 81% 1022 mb
Low level cloud: 29%
Mid level cloud: 81%
High level cloud: 33%
Most Significant Cloud Type: low
61%
0.0 In
18:00

NE
NE

6 / 13 mph 55 / 54°F 78% 1022 mb
Low level cloud: 2%
Mid level cloud: 10%
High level cloud: 21%
Most Significant Cloud Type: medium
18%
0.0 In
Thu 25
Sep
00:00

E
E

7 / 15 mph 54 / 52°F 82% 1016 mb
Low level cloud: 0%
Mid level cloud: 26%
High level cloud: 9%
Most Significant Cloud Type: medium
26%
0.0 In
06:00

ESE
ESE

2 / 4 mph 52 / 53°F 84% 1022 mb
Low level cloud: 0%
Mid level cloud: 10%
High level cloud: 0%
Most Significant Cloud Type: medium
10%
0.0 In
12:00

S
S

11 / 23 mph 68 / 68°F 73% 1009 mb
Low level cloud: 84%
Mid level cloud: 46%
High level cloud: 1%
Most Significant Cloud Type: low
100%
0.0 In
18:00

WSW
WSW

4 / 8 mph 59 / 59°F 83% 1022 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: medium
4%
0.0 In
Fri 26
Sep
00:00

WSW
WSW

20 / 43 mph 56 / 52°F 87% 1008 mb
Low level cloud: 60%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: low
61%
0.2 In
06:00

E
E

3 / 6 mph 51 / 51°F 86% 1022 mb
Low level cloud: 0%
Mid level cloud: 8%
High level cloud: 5%
Most Significant Cloud Type: medium
9%
0.0 In
12:00

SW
SW

12 / 26 mph 58 / 55°F 71% 1013 mb
Low level cloud: 34%
Mid level cloud: 7%
High level cloud: 3%
Most Significant Cloud Type: low
36%
0.0 In
18:00

NE
NE

5 / 11 mph 60 / 60°F 76% 1019 mb
Low level cloud: 43%
Mid level cloud: 88%
High level cloud: 72%
Most Significant Cloud Type: low
82%
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