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Horton 14 Day Long Range Forecast

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

Northamptonshire, United Kingdom

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

Over the next 14 days the Horton forecast suggests the average daytime maximum temperature will be around 22°C, with a high for the two weeks of 29°C expected on the afternoon of Sunday 3rd. The average minimum temperature will be 12°C, dipping to its lowest on the morning of Monday 28th at 10°C. The next 14 days will have mixed overhead conditions with some days dry and some seeing a significant amount of rain. Predictions are Thursday 31st will have the most precipitation with an accumulation of around 11.0mm. On the whole winds are likely to be moderate.

DayLocal TimeDirSpeed/
Gust		Temp/
Feels Like		HumidityPressureCloud AmountPrecip AmountWeather
Mon 28
Jul		15:00

NW
NW

 11 / 13 mph 77 / 76°F 39% 1019 mb
Low level cloud: 0%
Mid level cloud: 51%
High level cloud: 32%
Most Significant Cloud Type: medium
53%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

NW
NW

 9 / 11 mph 74 / 76°F 50% 1019 mb
Low level cloud: 5%
Mid level cloud: 46%
High level cloud: 34%
Most Significant Cloud Type: medium
60%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

NNW
NNW

 10 / 16 mph 62 / 62°F 62% 1020 mb
Low level cloud: 10%
Mid level cloud: 72%
High level cloud: 8%
Most Significant Cloud Type: medium
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Tue 29
Jul		00:00

NW
NW

 7 / 15 mph 54 / 52°F 80% 1021 mb
Low level cloud: 0%
Mid level cloud: 15%
High level cloud: 22%
Most Significant Cloud Type: medium
16%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

WNW
WNW

 7 / 14 mph 51 / 48°F 89% 1020 mb
Low level cloud: 0%
Mid level cloud: 13%
High level cloud: 18%
Most Significant Cloud Type: medium
13%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

WNW
WNW

 5 / 7 mph 57 / 56°F 74% 1019 mb
Low level cloud: 0%
Mid level cloud: 96%
High level cloud: 1%
Most Significant Cloud Type: medium
95%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

WSW
WSW

 4 / 5 mph 64 / 61°F 66% 1019 mb
Low level cloud: 43%
Mid level cloud: 73%
High level cloud: 4%
Most Significant Cloud Type: low
69%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

WSW
WSW

 7 / 8 mph 60 / 60°F 85% 1019 mb
Low level cloud: 98%
Mid level cloud: 55%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

WNW
WNW

 6 / 7 mph 64 / 63°F 84% 1018 mb
Low level cloud: 92%
Mid level cloud: 46%
High level cloud: 1%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

NNW
NNW

 6 / 7 mph 66 / 66°F 78% 1018 mb
Low level cloud: 80%
Mid level cloud: 46%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

NNW
NNW

 5 / 8 mph 61 / 61°F 90% 1019 mb
Low level cloud: 94%
Mid level cloud: 52%
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 30
Jul		00:00

NW
NW

 7 / 9 mph 59 / 60°F 95% 1019 mb
Low level cloud: 71%
Mid level cloud: 93%
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

WNW
WNW

 7 / 10 mph 58 / 57°F 96% 1018 mb
Low level cloud: 64%
Mid level cloud: 64%
High level cloud: 0%
Most Significant Cloud Type: low
86%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

WNW
WNW

 9 / 11 mph 59 / 57°F 93% 1019 mb
Low level cloud: 71%
Mid level cloud: 94%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

NW
NW

 10 / 12 mph 65 / 64°F 76% 1019 mb
Low level cloud: 62%
Mid level cloud: 50%
High level cloud: 13%
Most Significant Cloud Type: low
80%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

WNW
WNW

 13 / 15 mph 70 / 69°F 56% 1019 mb
Low level cloud: 82%
Mid level cloud: 16%
High level cloud: 11%
Most Significant Cloud Type: low
88%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

WNW
WNW

 11 / 13 mph 72 / 76°F 50% 1018 mb
Low level cloud: 91%
Mid level cloud: 6%
High level cloud: 32%
Most Significant Cloud Type: low
97%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

NW
NW

 8 / 9 mph 74 / 76°F 52% 1017 mb
Low level cloud: 53%
Mid level cloud: 5%
High level cloud: 100%
Most Significant Cloud Type: low
66%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

NNW
NNW

 7 / 14 mph 61 / 61°F 69% 1018 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
Thu 31
Jul		00:00

WNW
WNW

 7 / 14 mph 55 / 53°F 81% 1017 mb
Low level cloud: 70%
Mid level cloud: 55%
High level cloud: 55%
Most Significant Cloud Type: low
95%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

W
W

 5 / 9 mph 58 / 57°F 82% 1016 mb
Low level cloud: 32%
Mid level cloud: 46%
High level cloud: 100%
Most Significant Cloud Type: low
59%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

W
W

 5 / 7 mph 59 / 59°F 94% 1015 mb
Low level cloud: 88%
Mid level cloud: 49%
High level cloud: 80%
Most Significant Cloud Type: low
100%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
09:00

W
W

 6 / 7 mph 65 / 65°F 88% 1015 mb
Low level cloud: 98%
Mid level cloud: 78%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

NW
NW

 6 / 9 mph 69 / 69°F 75% 1014 mb
Low level cloud: 88%
Mid level cloud: 52%
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

NW
NW

 8 / 13 mph 70 / 70°F 71% 1013 mb
Low level cloud: 88%
Mid level cloud: 87%
High level cloud: 83%
Most Significant Cloud Type: low
100%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
18:00

NNW
NNW

 11 / 17 mph 69 / 67°F 80% 1013 mb
Low level cloud: 23%
Mid level cloud: 46%
High level cloud: 14%
Most Significant Cloud Type: low
41%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
21:00

NW
NW

 11 / 21 mph 57 / 55°F 88% 1015 mb
Low level cloud: 30%
Mid level cloud: 26%
High level cloud: 1%
Most Significant Cloud Type: low
39%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Fri 01
Aug		00:00

NW
NW

 11 / 17 mph 56 / 53°F 95% 1015 mb
Low level cloud: 49%
Mid level cloud: 30%
High level cloud: 4%
Most Significant Cloud Type: low
60%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

NW
NW

 11 / 17 mph 54 / 51°F 96% 1015 mb
Low level cloud: 96%
Mid level cloud: 32%
High level cloud: 1%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

NW
NW

 10 / 13 mph 56 / 53°F 91% 1016 mb
Low level cloud: 69%
Mid level cloud: 19%
High level cloud: 1%
Most Significant Cloud Type: low
75%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

NNW
NNW

 10 / 11 mph 60 / 60°F 87% 1017 mb
Low level cloud: 97%
Mid level cloud: 43%
High level cloud: 19%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

NNE
NNE

 9 / 11 mph 64 / 64°F 72% 1018 mb
Low level cloud: 80%
Mid level cloud: 46%
High level cloud: 32%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

N
N

 12 / 16 mph 67 / 66°F 67% 1018 mb
Low level cloud: 50%
Mid level cloud: 27%
High level cloud: 5%
Most Significant Cloud Type: low
59%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

NNE
NNE

 11 / 13 mph 67 / 66°F 61% 1020 mb
Low level cloud: 52%
Mid level cloud: 31%
High level cloud: 17%
Most Significant Cloud Type: low
65%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

N
N

 6 / 13 mph 54 / 53°F 75% 1022 mb
Low level cloud: 36%
Mid level cloud: 45%
High level cloud: 20%
Most Significant Cloud Type: low
54%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sat 02
Aug		00:00

NNW
NNW

 4 / 9 mph 52 / 51°F 82% 1023 mb
Low level cloud: 18%
Mid level cloud: 31%
High level cloud: 0%
Most Significant Cloud Type: low
28%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

WNW
WNW

 5 / 10 mph 52 / 50°F 83% 1023 mb
Low level cloud: 17%
Mid level cloud: 32%
High level cloud: 3%
Most Significant Cloud Type: low
28%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

WNW
WNW

 7 / 9 mph 57 / 54°F 83% 1023 mb
Low level cloud: 27%
Mid level cloud: 25%
High level cloud: 17%
Most Significant Cloud Type: low
38%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

NW
NW

 9 / 10 mph 67 / 65°F 62% 1024 mb
Low level cloud: 31%
Mid level cloud: 29%
High level cloud: 20%
Most Significant Cloud Type: low
43%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

WNW
WNW

 8 / 9 mph 74 / 76°F 45% 1023 mb
Low level cloud: 39%
Mid level cloud: 19%
High level cloud: 6%
Most Significant Cloud Type: low
46%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

WNW
WNW

 8 / 9 mph 77 / 76°F 38% 1023 mb
Low level cloud: 0%
Mid level cloud: 12%
High level cloud: 8%
Most Significant Cloud Type: medium
11%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

WNW
WNW

 6 / 7 mph 77 / 76°F 43% 1023 mb
Low level cloud: 0%
Mid level cloud: 13%
High level cloud: 100%
Most Significant Cloud Type: medium
17%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

NNW
NNW

 7 / 15 mph 59 / 59°F 63% 1024 mb
Low level cloud: 0%
Mid level cloud: 14%
High level cloud: 34%
Most Significant Cloud Type: medium
15%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sun 03
Aug		00:00

NW
NW

 6 / 14 mph 56 / 55°F 69% 1025 mb
Low level cloud: 0%
Mid level cloud: 14%
High level cloud: 7%
Most Significant Cloud Type: medium
13%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

WNW
WNW

 6 / 12 mph 54 / 52°F 69% 1024 mb
Low level cloud: 0%
Mid level cloud: 15%
High level cloud: 3%
Most Significant Cloud Type: medium
15%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

WNW
WNW

 4 / 7 mph 59 / 58°F 69% 1025 mb
Low level cloud: 0%
Mid level cloud: 12%
High level cloud: 97%
Most Significant Cloud Type: medium
15%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

W
W

 8 / 9 mph 73 / 76°F 50% 1025 mb
Low level cloud: 0%
Mid level cloud: 28%
High level cloud: 100%
Most Significant Cloud Type: medium
32%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

W
W

 8 / 9 mph 79 / 77°F 40% 1024 mb
Low level cloud: 0%
Mid level cloud: 29%
High level cloud: 100%
Most Significant Cloud Type: medium
33%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

W
W

 8 / 9 mph 83 / 80°F 39% 1023 mb
Low level cloud: 4%
Mid level cloud: 41%
High level cloud: 97%
Most Significant Cloud Type: medium
54%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

WNW
WNW

 6 / 9 mph 77 / 79°F 50% 1022 mb
Low level cloud: 13%
Mid level cloud: 81%
High level cloud: 100%
Most Significant Cloud Type: medium
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

WNW
WNW

 7 / 12 mph 71 / 71°F 60% 1023 mb
Low level cloud: 23%
Mid level cloud: 11%
High level cloud: 100%
Most Significant Cloud Type: low
38%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
DayLocal TimeDirSpeed/
Gust		Temp/
Feels Like		HumidityPressureCloud AmountPrecip AmountWeather
Mon 04
Aug		00:00

W
W

 11 / 17 mph 65 / 65°F 68% 1023 mb
Low level cloud: 68%
Mid level cloud: 29%
High level cloud: 6%
Most Significant Cloud Type: low
79%
0.0 In
06:00

NW
NW

 5 / 8 mph 66 / 66°F 86% 1030 mb
Low level cloud: 19%
Mid level cloud: 30%
High level cloud: 33%
Most Significant Cloud Type: low
33%
0.0 In
12:00

NW
NW

 6 / 12 mph 82 / 83°F 52% 1031 mb
Low level cloud: 70%
Mid level cloud: 12%
High level cloud: 30%
Most Significant Cloud Type: low
77%
0.0 In
18:00

W
W

 14 / 26 mph 83 / 83°F 45% 1025 mb
Low level cloud: 15%
Mid level cloud: 18%
High level cloud: 59%
Most Significant Cloud Type: low
27%
0.0 In
Tue 05
Aug		00:00

W
W

 18 / 34 mph 66 / 66°F 81% 1023 mb
Low level cloud: 95%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: low
96%
0.0 In
06:00

W
W

 9 / 17 mph 64 / 64°F 85% 1025 mb
Low level cloud: 7%
Mid level cloud: 13%
High level cloud: 0%
Most Significant Cloud Type: low
11%
0.0 In
12:00

W
W

 21 / 32 mph 84 / 83°F 33% 1020 mb
Low level cloud: 0%
Mid level cloud: 1%
High level cloud: 0%
Most Significant Cloud Type: medium
1%
0.0 In
18:00

N
N

 15 / 31 mph 72 / 76°F 45% 1022 mb
Low level cloud: 23%
Mid level cloud: 1%
High level cloud: 0%
Most Significant Cloud Type: low
23%
0.0 In
Wed 06
Aug		00:00

NNE
NNE

 10 / 15 mph 56 / 53°F 74% 1028 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
06:00

NW
NW

 9 / 19 mph 54 / 52°F 82% 1029 mb
Low level cloud: 2%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
1%
0.0 In
12:00

E
E

 5 / 7 mph 77 / 77°F 36% 1029 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 4%
Most Significant Cloud Type: high
4%
0.0 In
18:00

NE
NE

 7 / 15 mph 75 / 76°F 31% 1028 mb
Low level cloud: 0%
Mid level cloud: 19%
High level cloud: 0%
Most Significant Cloud Type: medium
18%
0.0 In
Thu 07
Aug		00:00

SSE
SSE

 7 / 12 mph 58 / 57°F 84% 1027 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 10%
Most Significant Cloud Type: high
9%
0.0 In
06:00

SSE
SSE

 3 / 6 mph 62 / 62°F 79% 1028 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: medium
3%
0.0 In
12:00

E
E

 6 / 9 mph 81 / 80°F 31% 1026 mb
Low level cloud: 0%
Mid level cloud: 1%
High level cloud: 3%
Most Significant Cloud Type: high
3%
0.0 In
18:00

E
E

 8 / 16 mph 78 / 78°F 38% 1023 mb
Low level cloud: 0%
Mid level cloud: 11%
High level cloud: 1%
Most Significant Cloud Type: medium
10%
0.0 In
Fri 08
Aug		00:00

ESE
ESE

 6 / 13 mph 60 / 60°F 57% 1027 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
06:00

E
E

 4 / 9 mph 62 / 62°F 85% 1024 mb
Low level cloud: 2%
Mid level cloud: 3%
High level cloud: 5%
Most Significant Cloud Type: low
3%
0.0 In
12:00

ENE
ENE

 9 / 14 mph 82 / 80°F 28% 1026 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
18:00

E
E

 14 / 29 mph 76 / 77°F 38% 1020 mb
Low level cloud: 0%
Mid level cloud: 8%
High level cloud: 0%
Most Significant Cloud Type: medium
7%
0.0 In
Sat 09
Aug		00:00

ENE
ENE

 9 / 19 mph 57 / 55°F 65% 1028 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
06:00

ENE
ENE

 8 / 17 mph 58 / 56°F 94% 1019 mb
Low level cloud: 74%
Mid level cloud: 0%
High level cloud: 8%
Most Significant Cloud Type: low
74%
0.0 In
12:00

E
E

 14 / 22 mph 85 / 82°F 30% 1025 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
18:00

E
E

 12 / 25 mph 79 / 79°F 39% 1016 mb
Low level cloud: 0%
Mid level cloud: 46%
High level cloud: 100%
Most Significant Cloud Type: medium
49%
0.0 In
Sun 10
Aug		00:00

NE
NE

 12 / 22 mph 59 / 59°F 91% 1025 mb
Low level cloud: 9%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
8%
0.0 In
06:00

NE
NE

 7 / 15 mph 64 / 64°F 83% 1017 mb
Low level cloud: 4%
Mid level cloud: 8%
High level cloud: 0%
Most Significant Cloud Type: low
7%
0.0 In
12:00

E
E

 12 / 19 mph 89 / 87°F 28% 1021 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
18:00

NNE
NNE

 7 / 15 mph 83 / 83°F 37% 1016 mb
Low level cloud: 0%
Mid level cloud: 31%
High level cloud: 100%
Most Significant Cloud Type: medium
35%
0.0 In
Mon 11
Aug		00:00

ENE
ENE

 8 / 17 mph 63 / 63°F 70% 1020 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
06:00

NW
NW

 6 / 12 mph 67 / 67°F 83% 1021 mb
Low level cloud: 1%
Mid level cloud: 8%
High level cloud: 2%
Most Significant Cloud Type: medium
11%
0.0 In
12:00

SSE
SSE

 15 / 22 mph 98 / 95°F 17% 1015 mb
Low level cloud: 0%
Mid level cloud: 6%
High level cloud: 0%
Most Significant Cloud Type: medium
6%
0.0 In
18:00

N
N

 11 / 22 mph 80 / 80°F 36% 1022 mb
Low level cloud: 0%
Mid level cloud: 18%
High level cloud: 0%
Most Significant Cloud Type: medium
17%
0.0 In
Tue 12
Aug		00:00

WNW
WNW

 15 / 23 mph 66 / 66°F 70% 1017 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
06:00

ENE
ENE

 9 / 18 mph 63 / 63°F 82% 1027 mb
Low level cloud: 52%
Mid level cloud: 12%
High level cloud: 70%
Most Significant Cloud Type: low
64%
0.0 In
12:00

NW
NW

 13 / 20 mph 83 / 83°F 41% 1020 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
18:00

ENE
ENE

 13 / 28 mph 72 / 76°F 44% 1028 mb
Low level cloud: 9%
Mid level cloud: 28%
High level cloud: 0%
Most Significant Cloud Type: medium
53%
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