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Ashton-in-Makerfield 14 Day Long Range Forecast

14 Day weather providing an extended long range forecast outlook for Ashton-in-Makerfield

St Helens, United Kingdom

Long range weather outlook for Ashton-in-Makerfield includes 14 day forecast summary:

Taking a look at Ashton-in-Makerfield over the coming two weeks and the average daytime maximum temperature will be around 16°C, with a high for the two weeks of 24°C expected on the afternoon of Wednesday 30th. The average minimum temperature will be 9°C, dipping to its lowest on the morning of Friday 9th at 5°C. Expect the next 14 days remain predominantly dry. On the whole winds are likely to be moderate.

DayLocal TimeDirSpeed/
Gust
Temp/
Feels Like
HumidityPressureCloud AmountPrecip AmountWeather
Tue 29
Apr
12:00

SSE
SSE

8 / 9 mph 72 / 69°F 52% 1025 mb
Low level cloud: 7%
Mid level cloud: 0%
High level cloud: 51%
Most Significant Cloud Type: low
13%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

SSE
SSE

8 / 9 mph 73 / 76°F 45% 1024 mb
Low level cloud: 10%
Mid level cloud: 0%
High level cloud: 100%
Most Significant Cloud Type: medium
32%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

SSE
SSE

6 / 8 mph 68 / 68°F 50% 1024 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 100%
Most Significant Cloud Type: high
99%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

SE
SE

4 / 7 mph 61 / 61°F 64% 1025 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 100%
Most Significant Cloud Type: high
99%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Wed 30
Apr
00:00

SE
SE

4 / 6 mph 58 / 58°F 73% 1025 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 100%
Most Significant Cloud Type: high
99%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

SE
SE

4 / 8 mph 55 / 55°F 82% 1024 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 100%
Most Significant Cloud Type: high
99%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

SE
SE

4 / 6 mph 55 / 54°F 83% 1024 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 100%
Most Significant Cloud Type: high
99%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

SSE
SSE

5 / 6 mph 66 / 64°F 58% 1024 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 31%
Most Significant Cloud Type: high
31%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

SSE
SSE

5 / 6 mph 74 / 75°F 40% 1023 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 68%
Most Significant Cloud Type: high
68%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

S
S

4 / 5 mph 76 / 75°F 35% 1021 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 33%
Most Significant Cloud Type: high
32%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

S
S

3 / 4 mph 75 / 76°F 47% 1020 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 9%
Most Significant Cloud Type: high
9%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

SSW
SSW

2 / 3 mph 69 / 69°F 65% 1021 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
Thu 01
May
00:00

SE
SE

4 / 5 mph 61 / 61°F 73% 1021 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

SE
SE

4 / 6 mph 58 / 58°F 80% 1019 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
06:00

SE
SE

3 / 5 mph 56 / 56°F 79% 1019 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
09:00

S
S

3 / 3 mph 67 / 65°F 57% 1019 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

W
W

5 / 6 mph 74 / 76°F 44% 1017 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

WNW
WNW

10 / 12 mph 73 / 76°F 49% 1016 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
18:00

NW
NW

10 / 11 mph 63 / 61°F 70% 1016 mb
Low level cloud: 0%
Mid level cloud: 7%
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

NW
NW

7 / 9 mph 53 / 50°F 67% 1018 mb
Low level cloud: 8%
Mid level cloud: 7%
High level cloud: 81%
Most Significant Cloud Type: medium
32%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Fri 02
May
00:00

WNW
WNW

5 / 7 mph 51 / 49°F 80% 1017 mb
Low level cloud: 0%
Mid level cloud: 7%
High level cloud: 57%
Most Significant Cloud Type: medium
9%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

NW
NW

3 / 5 mph 50 / 49°F 85% 1018 mb
Low level cloud: 1%
Mid level cloud: 10%
High level cloud: 21%
Most Significant Cloud Type: medium
14%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

NW
NW

3 / 5 mph 49 / 48°F 76% 1019 mb
Low level cloud: 0%
Mid level cloud: 10%
High level cloud: 11%
Most Significant Cloud Type: medium
10%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

WNW
WNW

5 / 6 mph 57 / 55°F 52% 1020 mb
Low level cloud: 0%
Mid level cloud: 8%
High level cloud: 16%
Most Significant Cloud Type: medium
8%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

WNW
WNW

10 / 11 mph 61 / 60°F 45% 1020 mb
Low level cloud: 0%
Mid level cloud: 6%
High level cloud: 7%
Most Significant Cloud Type: medium
6%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

WNW
WNW

9 / 11 mph 61 / 60°F 43% 1020 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
18:00

WNW
WNW

9 / 11 mph 59 / 57°F 56% 1021 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
21:00

WNW
WNW

5 / 6 mph 54 / 52°F 78% 1021 mb
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 0%
Most Significant Cloud Type: medium
2%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sat 03
May
00:00

W
W

5 / 7 mph 49 / 47°F 85% 1021 mb
Low level cloud: 7%
Mid level cloud: 2%
High level cloud: 0%
Most Significant Cloud Type: low
7%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

WNW
WNW

4 / 6 mph 47 / 46°F 90% 1020 mb
Low level cloud: 12%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: low
12%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

WNW
WNW

5 / 8 mph 48 / 44°F 88% 1019 mb
Low level cloud: 33%
Mid level cloud: 5%
High level cloud: 3%
Most Significant Cloud Type: low
35%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

WNW
WNW

9 / 10 mph 56 / 53°F 64% 1019 mb
Low level cloud: 2%
Mid level cloud: 8%
High level cloud: 6%
Most Significant Cloud Type: medium
14%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

NW
NW

10 / 12 mph 61 / 60°F 56% 1019 mb
Low level cloud: 0%
Mid level cloud: 13%
High level cloud: 98%
Most Significant Cloud Type: medium
16%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

WNW
WNW

9 / 10 mph 64 / 62°F 57% 1018 mb
Low level cloud: 0%
Mid level cloud: 10%
High level cloud: 18%
Most Significant Cloud Type: medium
10%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

ENE
ENE

6 / 8 mph 58 / 57°F 66% 1019 mb
Low level cloud: 91%
Mid level cloud: 26%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

E
E

8 / 10 mph 55 / 53°F 62% 1021 mb
Low level cloud: 50%
Mid level cloud: 82%
High level cloud: 0%
Most Significant Cloud Type: low
78%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sun 04
May
00:00

ENE
ENE

8 / 9 mph 52 / 49°F 62% 1023 mb
Low level cloud: 0%
Mid level cloud: 18%
High level cloud: 4%
Most Significant Cloud Type: medium
17%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

E
E

5 / 7 mph 46 / 44°F 71% 1023 mb
Low level cloud: 32%
Mid level cloud: 4%
High level cloud: 6%
Most Significant Cloud Type: low
34%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

E
E

5 / 7 mph 47 / 43°F 68% 1024 mb
Low level cloud: 48%
Mid level cloud: 4%
High level cloud: 42%
Most Significant Cloud Type: low
54%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

E
E

5 / 6 mph 53 / 50°F 56% 1025 mb
Low level cloud: 77%
Mid level cloud: 0%
High level cloud: 16%
Most Significant Cloud Type: low
79%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

NNE
NNE

5 / 6 mph 61 / 59°F 48% 1024 mb
Low level cloud: 27%
Mid level cloud: 0%
High level cloud: 13%
Most Significant Cloud Type: low
28%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

N
N

6 / 7 mph 63 / 61°F 45% 1023 mb
Low level cloud: 29%
Mid level cloud: 0%
High level cloud: 13%
Most Significant Cloud Type: low
30%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

NNW
NNW

7 / 9 mph 62 / 60°F 56% 1023 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 97%
Most Significant Cloud Type: medium
6%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

NW
NW

4 / 4 mph 54 / 53°F 74% 1023 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 100%
Most Significant Cloud Type: medium
6%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Mon 05
May
00:00

WNW
WNW

2 / 3 mph 50 / 50°F 76% 1023 mb
Low level cloud: 4%
Mid level cloud: 92%
High level cloud: 100%
Most Significant Cloud Type: medium
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

WNW
WNW

4 / 6 mph 48 / 47°F 86% 1021 mb
Low level cloud: 16%
Mid level cloud: 15%
High level cloud: 32%
Most Significant Cloud Type: low
25%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

WNW
WNW

7 / 10 mph 48 / 44°F 78% 1020 mb
Low level cloud: 0%
Mid level cloud: 18%
High level cloud: 4%
Most Significant Cloud Type: medium
18%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

WNW
WNW

12 / 15 mph 52 / 47°F 74% 1018 mb
Low level cloud: 82%
Mid level cloud: 46%
High level cloud: 39%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

WNW
WNW

14 / 16 mph 55 / 51°F 67% 1017 mb
Low level cloud: 40%
Mid level cloud: 27%
High level cloud: 81%
Most Significant Cloud Type: low
59%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

WNW
WNW

15 / 17 mph 57 / 53°F 55% 1016 mb
Low level cloud: 0%
Mid level cloud: 6%
High level cloud: 14%
Most Significant Cloud Type: medium
6%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

WNW
WNW

12 / 15 mph 55 / 50°F 70% 1015 mb
Low level cloud: 65%
Mid level cloud: 16%
High level cloud: 1%
Most Significant Cloud Type: low
70%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

NW
NW

9 / 12 mph 50 / 47°F 88% 1016 mb
Low level cloud: 23%
Mid level cloud: 18%
High level cloud: 0%
Most Significant Cloud Type: low
29%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
DayLocal TimeDirSpeed/
Gust
Temp/
Feels Like
HumidityPressureCloud AmountPrecip AmountWeather
Tue 06
May
00:00

ENE
ENE

7 / 8 mph 50 / 47°F 81% 1021 mb
Low level cloud: 2%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
1%
0.0 In
06:00

S
S

1 / 1 mph 44 / 44°F 78% 1021 mb
Low level cloud: 43%
Mid level cloud: 69%
High level cloud: 0%
Most Significant Cloud Type: low
67%
0.0 In
12:00

NNE
NNE

12 / 17 mph 44 / 38°F 57% 1007 mb
Low level cloud: 56%
Mid level cloud: 46%
High level cloud: 0%
Most Significant Cloud Type: low
72%
0.0 In
18:00

WNW
WNW

11 / 12 mph 56 / 53°F 67% 1020 mb
Low level cloud: 80%
Mid level cloud: 44%
High level cloud: 97%
Most Significant Cloud Type: low
100%
0.0 In
Wed 07
May
00:00

W
W

7 / 8 mph 54 / 51°F 88% 1020 mb
Low level cloud: 10%
Mid level cloud: 19%
High level cloud: 68%
Most Significant Cloud Type: low
24%
0.0 In
06:00

WNW
WNW

4 / 5 mph 50 / 49°F 88% 1017 mb
Low level cloud: 77%
Mid level cloud: 7%
High level cloud: 0%
Most Significant Cloud Type: low
79%
0.0 In
12:00

W
W

14 / 18 mph 53 / 49°F 64% 1014 mb
Low level cloud: 69%
Mid level cloud: 1%
High level cloud: 1%
Most Significant Cloud Type: low
69%
0.0 In
18:00

W
W

15 / 23 mph 53 / 48°F 68% 1000 mb
Low level cloud: 26%
Mid level cloud: 91%
High level cloud: 0%
Most Significant Cloud Type: medium
100%
0.0 In
Thu 08
May
00:00

W
W

17 / 26 mph 50 / 45°F 89% 1005 mb
Low level cloud: 97%
Mid level cloud: 7%
High level cloud: 5%
Most Significant Cloud Type: low
100%
0.0 In
06:00

NNW
NNW

6 / 10 mph 47 / 44°F 74% 1004 mb
Low level cloud: 29%
Mid level cloud: 50%
High level cloud: 6%
Most Significant Cloud Type: low
46%
0.0 In
12:00

WNW
WNW

13 / 21 mph 50 / 45°F 65% 1005 mb
Low level cloud: 79%
Mid level cloud: 46%
High level cloud: 0%
Most Significant Cloud Type: low
94%
0.1 In
18:00

WNW
WNW

8 / 14 mph 54 / 51°F 51% 1010 mb
Low level cloud: 0%
Mid level cloud: 8%
High level cloud: 0%
Most Significant Cloud Type: medium
7%
0.0 In
Fri 09
May
00:00

N
N

3 / 5 mph 51 / 51°F 76% 1015 mb
Low level cloud: 0%
Mid level cloud: 21%
High level cloud: 0%
Most Significant Cloud Type: medium
21%
0.0 In
06:00

WNW
WNW

6 / 11 mph 46 / 43°F 81% 1013 mb
Low level cloud: 42%
Mid level cloud: 4%
High level cloud: 3%
Most Significant Cloud Type: low
44%
0.0 In
12:00

NW
NW

8 / 14 mph 53 / 50°F 52% 1018 mb
Low level cloud: 48%
Mid level cloud: 14%
High level cloud: 4%
Most Significant Cloud Type: low
53%
0.0 In
18:00

WNW
WNW

9 / 15 mph 52 / 49°F 55% 1016 mb
Low level cloud: 12%
Mid level cloud: 6%
High level cloud: 10%
Most Significant Cloud Type: low
14%
0.0 In
Sat 10
May
00:00

NW
NW

5 / 9 mph 51 / 49°F 74% 1021 mb
Low level cloud: 0%
Mid level cloud: 7%
High level cloud: 17%
Most Significant Cloud Type: medium
7%
0.0 In
06:00

S
S

6 / 10 mph 48 / 45°F 69% 1016 mb
Low level cloud: 14%
Mid level cloud: 41%
High level cloud: 100%
Most Significant Cloud Type: medium
83%
0.0 In
12:00

WNW
WNW

13 / 23 mph 51 / 46°F 55% 1022 mb
Low level cloud: 93%
Mid level cloud: 10%
High level cloud: 0%
Most Significant Cloud Type: low
96%
0.0 In
18:00

WSW
WSW

10 / 18 mph 57 / 55°F 60% 1015 mb
Low level cloud: 5%
Mid level cloud: 61%
High level cloud: 14%
Most Significant Cloud Type: medium
75%
0.0 In
Sun 11
May
00:00

WNW
WNW

6 / 12 mph 48 / 45°F 87% 1023 mb
Low level cloud: 12%
Mid level cloud: 44%
High level cloud: 5%
Most Significant Cloud Type: medium
77%
0.0 In
06:00

SW
SW

6 / 10 mph 53 / 51°F 70% 1018 mb
Low level cloud: 85%
Mid level cloud: 19%
High level cloud: 6%
Most Significant Cloud Type: low
92%
0.0 In
12:00

WNW
WNW

11 / 20 mph 56 / 53°F 53% 1023 mb
Low level cloud: 57%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: low
57%
0.0 In
18:00

NW
NW

4 / 8 mph 60 / 60°F 59% 1019 mb
Low level cloud: 19%
Mid level cloud: 56%
High level cloud: 7%
Most Significant Cloud Type: medium
100%
0.0 In
Mon 12
May
00:00

WNW
WNW

6 / 11 mph 50 / 48°F 83% 1023 mb
Low level cloud: 33%
Mid level cloud: 2%
High level cloud: 0%
Most Significant Cloud Type: low
34%
0.0 In
06:00

E
E

1 / 2 mph 55 / 55°F 77% 1022 mb
Low level cloud: 3%
Mid level cloud: 46%
High level cloud: 14%
Most Significant Cloud Type: medium
54%
0.0 In
12:00

WNW
WNW

10 / 19 mph 55 / 53°F 48% 1021 mb
Low level cloud: 57%
Mid level cloud: 23%
High level cloud: 2%
Most Significant Cloud Type: low
65%
0.0 In
18:00

NW
NW

5 / 9 mph 63 / 63°F 62% 1023 mb
Low level cloud: 2%
Mid level cloud: 50%
High level cloud: 9%
Most Significant Cloud Type: medium
55%
0.0 In
Tue 13
May
00:00

WSW
WSW

8 / 14 mph 51 / 48°F 70% 1016 mb
Low level cloud: 75%
Mid level cloud: 47%
High level cloud: 15%
Most Significant Cloud Type: low
93%
0.0 In
06:00

SE
SE

2 / 3 mph 59 / 60°F 71% 1025 mb
Low level cloud: 0%
Mid level cloud: 52%
High level cloud: 0%
Most Significant Cloud Type: medium
52%
0.0 In
12:00

W
W

12 / 23 mph 50 / 46°F 86% 1013 mb
Low level cloud: 52%
Mid level cloud: 44%
High level cloud: 0%
Most Significant Cloud Type: low
67%
0.1 In
18:00

WSW
WSW

3 / 5 mph 66 / 66°F 59% 1026 mb
Low level cloud: 22%
Mid level cloud: 66%
High level cloud: 100%
Most Significant Cloud Type: medium
100%
0.0 In
Wed 14
May
00:00

WNW
WNW

6 / 11 mph 50 / 48°F 74% 1014 mb
Low level cloud: 2%
Mid level cloud: 1%
High level cloud: 0%
Most Significant Cloud Type: low
2%
0.0 In
06:00

SE
SE

5 / 9 mph 59 / 59°F 70% 1029 mb
Low level cloud: 0%
Mid level cloud: 46%
High level cloud: 0%
Most Significant Cloud Type: medium
46%
0.0 In
12:00

W
W

11 / 22 mph 53 / 50°F 51% 1014 mb
Low level cloud: 71%
Mid level cloud: 32%
High level cloud: 98%
Most Significant Cloud Type: low
93%
0.0 In
18:00

E
E

7 / 13 mph 69 / 69°F 47% 1029 mb
Low level cloud: 3%
Mid level cloud: 40%
High level cloud: 19%
Most Significant Cloud Type: medium
49%
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