WEATHER FOR BUSINESS

We supply weather data to businesses

Free Weather Plugin

Add this forecast to your website



Local Weather

Samson 14 Day Long Range Forecast

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

Isles of Scilly, United Kingdom

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

Taking a look at Samson over the coming two weeks and the average daytime maximum temperature will be around 17°C, with a high for the two weeks of 20°C expected on the afternoon of Monday 20th. The average minimum temperature will be 14°C, dipping to its lowest on the morning of Friday 24th at 12°C. The coming 14 days will have some days seeing a little precipitation and some days with rain. The current forecast indicates Sunday 26th will have the most precipitation with an accumulation of around 5.0mm. On the whole winds are likely to be moderate.

DayLocal TimeDirSpeed/
Gust
Temp/
Feels Like
HumidityCloud AmountPrecip AmountWeather
Sun 19
May
00:00

N
N

13 / 16 mph 58 / 55°F 93%
Low level cloud: 59%
Mid level cloud: 29%
High level cloud: 4%
Most Significant Cloud Type: low
69%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

N
N

14 / 20 mph 56 / 53°F 94%
Low level cloud: 70%
Mid level cloud: 44%
High level cloud: 11%
Most Significant Cloud Type: low
86%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

NNE
NNE

12 / 18 mph 56 / 51°F 93%
Low level cloud: 69%
Mid level cloud: 16%
High level cloud: 0%
Most Significant Cloud Type: low
74%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

ENE
ENE

10 / 13 mph 59 / 56°F 91%
Low level cloud: 42%
Mid level cloud: 20%
High level cloud: 0%
Most Significant Cloud Type: low
49%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

NE
NE

9 / 10 mph 64 / 62°F 89%
Low level cloud: 18%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: low
19%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

NE
NE

11 / 13 mph 65 / 64°F 81%
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
18:00

NNE
NNE

12 / 14 mph 63 / 62°F 80%
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

NNE
NNE

13 / 19 mph 60 / 59°F 86%
Low level cloud: 0%
Mid level cloud: 7%
High level cloud: 4%
Most Significant Cloud Type: medium
6%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Mon 20
May
00:00

NE
NE

11 / 16 mph 60 / 60°F 89%
Low level cloud: 1%
Mid level cloud: 19%
High level cloud: 1%
Most Significant Cloud Type: medium
20%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

ENE
ENE

11 / 18 mph 58 / 56°F 88%
Low level cloud: 5%
Mid level cloud: 9%
High level cloud: 0%
Most Significant Cloud Type: low
7%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

ENE
ENE

11 / 19 mph 57 / 54°F 87%
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: medium
3%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

E
E

10 / 11 mph 62 / 60°F 89%
Low level cloud: 9%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
9%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

E
E

9 / 11 mph 67 / 65°F 88%
Low level cloud: 14%
Mid level cloud: 3%
High level cloud: 4%
Most Significant Cloud Type: low
15%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

E
E

7 / 9 mph 69 / 67°F 81%
Low level cloud: 0%
Mid level cloud: 12%
High level cloud: 1%
Most Significant Cloud Type: medium
12%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

NNE
NNE

5 / 6 mph 67 / 65°F 79%
Low level cloud: 0%
Mid level cloud: 16%
High level cloud: 1%
Most Significant Cloud Type: medium
16%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

N
N

8 / 9 mph 64 / 62°F 83%
Low level cloud: 0%
Mid level cloud: 32%
High level cloud: 10%
Most Significant Cloud Type: medium
32%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Tue 21
May
00:00

N
N

10 / 15 mph 58 / 56°F 84%
Low level cloud: 5%
Mid level cloud: 27%
High level cloud: 6%
Most Significant Cloud Type: medium
41%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

NE
NE

9 / 14 mph 57 / 55°F 87%
Low level cloud: 0%
Mid level cloud: 20%
High level cloud: 32%
Most Significant Cloud Type: medium
21%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

NE
NE

9 / 15 mph 58 / 54°F 86%
Low level cloud: 1%
Mid level cloud: 22%
High level cloud: 58%
Most Significant Cloud Type: medium
25%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

ENE
ENE

7 / 8 mph 60 / 58°F 85%
Low level cloud: 1%
Mid level cloud: 31%
High level cloud: 32%
Most Significant Cloud Type: medium
34%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

E
E

2 / 2 mph 65 / 61°F 82%
Low level cloud: 2%
Mid level cloud: 45%
High level cloud: 6%
Most Significant Cloud Type: medium
52%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

NNW
NNW

3 / 3 mph 63 / 62°F 77%
Low level cloud: 0%
Mid level cloud: 97%
High level cloud: 9%
Most Significant Cloud Type: medium
97%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

NNW
NNW

4 / 5 mph 61 / 61°F 66%
Low level cloud: 0%
Mid level cloud: 100%
High level cloud: 0%
Most Significant Cloud Type: medium
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

NNW
NNW

4 / 5 mph 62 / 59°F 71%
Low level cloud: 0%
Mid level cloud: 23%
High level cloud: 0%
Most Significant Cloud Type: medium
23%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Wed 22
May
00:00

WNW
WNW

5 / 8 mph 58 / 57°F 74%
Low level cloud: 0%
Mid level cloud: 19%
High level cloud: 0%
Most Significant Cloud Type: medium
18%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

W
W

8 / 12 mph 56 / 55°F 85%
Low level cloud: 0%
Mid level cloud: 23%
High level cloud: 0%
Most Significant Cloud Type: medium
23%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

WNW
WNW

15 / 25 mph 56 / 51°F 86%
Low level cloud: 2%
Mid level cloud: 21%
High level cloud: 0%
Most Significant Cloud Type: medium
27%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

WNW
WNW

19 / 23 mph 59 / 54°F 88%
Low level cloud: 12%
Mid level cloud: 20%
High level cloud: 0%
Most Significant Cloud Type: low
18%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

WNW
WNW

18 / 20 mph 62 / 61°F 83%
Low level cloud: 80%
Mid level cloud: 12%
High level cloud: 5%
Most Significant Cloud Type: low
84%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

W
W

17 / 20 mph 64 / 63°F 74%
Low level cloud: 6%
Mid level cloud: 9%
High level cloud: 9%
Most Significant Cloud Type: low
10%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

W
W

16 / 19 mph 62 / 61°F 74%
Low level cloud: 12%
Mid level cloud: 4%
High level cloud: 1%
Most Significant Cloud Type: low
13%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

W
W

12 / 13 mph 60 / 57°F 74%
Low level cloud: 20%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: low
21%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Thu 23
May
00:00

W
W

10 / 15 mph 55 / 53°F 76%
Low level cloud: 1%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: low
1%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

W
W

11 / 16 mph 55 / 52°F 75%
Low level cloud: 11%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: low
11%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

NW
NW

11 / 17 mph 56 / 52°F 87%
Low level cloud: 63%
Mid level cloud: 20%
High level cloud: 0%
Most Significant Cloud Type: low
69%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

NNW
NNW

13 / 19 mph 56 / 52°F 87%
Low level cloud: 77%
Mid level cloud: 21%
High level cloud: 0%
Most Significant Cloud Type: low
84%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

NNW
NNW

11 / 14 mph 57 / 53°F 85%
Low level cloud: 50%
Mid level cloud: 7%
High level cloud: 0%
Most Significant Cloud Type: low
52%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

NNW
NNW

11 / 14 mph 57 / 54°F 81%
Low level cloud: 81%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: low
82%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

NW
NW

12 / 17 mph 57 / 53°F 72%
Low level cloud: 42%
Mid level cloud: 5%
High level cloud: 5%
Most Significant Cloud Type: low
44%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

WNW
WNW

10 / 15 mph 56 / 53°F 67%
Low level cloud: 91%
Mid level cloud: 5%
High level cloud: 62%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Fri 24
May
00:00

W
W

13 / 20 mph 54 / 51°F 74%
Low level cloud: 79%
Mid level cloud: 5%
High level cloud: 82%
Most Significant Cloud Type: low
90%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

WNW
WNW

11 / 16 mph 54 / 51°F 69%
Low level cloud: 99%
Mid level cloud: 6%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

W
W

10 / 14 mph 55 / 51°F 67%
Low level cloud: 54%
Mid level cloud: 2%
High level cloud: 100%
Most Significant Cloud Type: low
66%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

W
W

6 / 9 mph 56 / 53°F 67%
Low level cloud: 32%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: low
33%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

SW
SW

5 / 7 mph 57 / 54°F 67%
Low level cloud: 9%
Mid level cloud: 41%
High level cloud: 0%
Most Significant Cloud Type: medium
66%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

SSW
SSW

6 / 9 mph 56 / 54°F 66%
Low level cloud: 1%
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
18:00

SSE
SSE

8 / 13 mph 56 / 53°F 66%
Low level cloud: 1%
Mid level cloud: 1%
High level cloud: 0%
Most Significant Cloud Type: low
1%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

SSE
SSE

10 / 18 mph 55 / 52°F 72%
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 5%
Most Significant Cloud Type: high
4%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sat 25
May
00:00

SSE
SSE

13 / 15 mph 58 / 56°F 73%
Low level cloud: 0%
Mid level cloud: 20%
High level cloud: 33%
Most Significant Cloud Type: medium
21%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

SSE
SSE

14 / 19 mph 57 / 54°F 77%
Low level cloud: 0%
Mid level cloud: 46%
High level cloud: 100%
Most Significant Cloud Type: medium
49%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

SSE
SSE

15 / 23 mph 57 / 52°F 82%
Low level cloud: 0%
Mid level cloud: 47%
High level cloud: 100%
Most Significant Cloud Type: medium
50%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

SE
SE

16 / 20 mph 59 / 55°F 87%
Low level cloud: 19%
Mid level cloud: 49%
High level cloud: 100%
Most Significant Cloud Type: low
48%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

SE
SE

14 / 16 mph 61 / 61°F 90%
Low level cloud: 23%
Mid level cloud: 69%
High level cloud: 31%
Most Significant Cloud Type: medium
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

SE
SE

16 / 18 mph 62 / 62°F 88%
Low level cloud: 8%
Mid level cloud: 76%
High level cloud: 97%
Most Significant Cloud Type: medium
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

SE
SE

16 / 18 mph 62 / 61°F 86%
Low level cloud: 0%
Mid level cloud: 89%
High level cloud: 36%
Most Significant Cloud Type: medium
91%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

SE
SE

15 / 21 mph 60 / 59°F 87%
Low level cloud: 1%
Mid level cloud: 89%
High level cloud: 31%
Most Significant Cloud Type: medium
93%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
DayLocal TimeDirSpeed/
Gust
Temp/
Feels Like
HumidityCloud AmountPrecip AmountWeather
Sun 26
May
00:00

S
S

11 / 18 mph 57 / 55°F 89%
Low level cloud: 35%
Mid level cloud: 32%
High level cloud: 15%
Most Significant Cloud Type: low
47%
0.0 In
06:00

SW
SW

6 / 13 mph 57 / 56°F 94%
Low level cloud: 46%
Mid level cloud: 10%
High level cloud: 0%
Most Significant Cloud Type: low
49%
0.0 In
12:00

W
W

9 / 20 mph 54 / 51°F 73%
Low level cloud: 39%
Mid level cloud: 29%
High level cloud: 0%
Most Significant Cloud Type: low
48%
0.0 In
18:00

S
S

5 / 11 mph 58 / 57°F 82%
Low level cloud: 23%
Mid level cloud: 60%
High level cloud: 0%
Most Significant Cloud Type: low
44%
0.0 In
Mon 27
May
00:00

SW
SW

20 / 35 mph 58 / 54°F 89%
Low level cloud: 20%
Mid level cloud: 6%
High level cloud: 5%
Most Significant Cloud Type: low
22%
0.0 In
06:00

NE
NE

15 / 28 mph 58 / 55°F 88%
Low level cloud: 79%
Mid level cloud: 59%
High level cloud: 96%
Most Significant Cloud Type: low
100%
0.0 In
12:00

SSW
SSW

28 / 50 mph 60 / 60°F 91%
Low level cloud: 63%
Mid level cloud: 43%
High level cloud: 43%
Most Significant Cloud Type: low
83%
0.0 In
18:00

NE
NE

10 / 18 mph 60 / 60°F 93%
Low level cloud: 38%
Mid level cloud: 27%
High level cloud: 40%
Most Significant Cloud Type: low
52%
0.0 In
Tue 28
May
00:00

WSW
WSW

21 / 39 mph 58 / 54°F 89%
Low level cloud: 19%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
18%
0.0 In
06:00

NE
NE

14 / 29 mph 58 / 55°F 96%
Low level cloud: 98%
Mid level cloud: 49%
High level cloud: 66%
Most Significant Cloud Type: low
100%
0.1 In
12:00

SSW
SSW

22 / 41 mph 61 / 61°F 96%
Low level cloud: 100%
Mid level cloud: 100%
High level cloud: 100%
Most Significant Cloud Type: low
100%
0.1 In
18:00

NNE
NNE

7 / 14 mph 60 / 60°F 92%
Low level cloud: 82%
Mid level cloud: 15%
High level cloud: 4%
Most Significant Cloud Type: low
88%
0.0 In
Wed 29
May
00:00

W
W

25 / 45 mph 57 / 51°F 92%
Low level cloud: 39%
Mid level cloud: 69%
High level cloud: 100%
Most Significant Cloud Type: low
75%
0.2 In
06:00

NNE
NNE

16 / 33 mph 58 / 54°F 92%
Low level cloud: 12%
Mid level cloud: 17%
High level cloud: 32%
Most Significant Cloud Type: low
21%
0.0 In
12:00

W
W

12 / 23 mph 57 / 54°F 83%
Low level cloud: 2%
Mid level cloud: 33%
High level cloud: 20%
Most Significant Cloud Type: medium
39%
0.1 In
18:00

N
N

15 / 31 mph 61 / 61°F 91%
Low level cloud: 19%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: low
20%
0.0 In
Thu 30
May
00:00

W
W

6 / 10 mph 56 / 55°F 95%
Low level cloud: 98%
Mid level cloud: 85%
High level cloud: 41%
Most Significant Cloud Type: low
100%
0.1 In
06:00

NNW
NNW

18 / 37 mph 57 / 53°F 95%
Low level cloud: 73%
Mid level cloud: 46%
High level cloud: 22%
Most Significant Cloud Type: low
92%
0.0 In
12:00

NE
NE

5 / 9 mph 56 / 56°F 82%
Low level cloud: 64%
Mid level cloud: 19%
High level cloud: 9%
Most Significant Cloud Type: low
71%
0.0 In
18:00

NNE
NNE

15 / 31 mph 60 / 60°F 94%
Low level cloud: 67%
Mid level cloud: 44%
High level cloud: 0%
Most Significant Cloud Type: low
82%
0.0 In
Fri 31
May
00:00

W
W

3 / 5 mph 59 / 59°F 78%
Low level cloud: 15%
Mid level cloud: 47%
High level cloud: 33%
Most Significant Cloud Type: medium
91%
0.0 In
06:00

E
E

18 / 36 mph 54 / 49°F 86%
Low level cloud: 94%
Mid level cloud: 45%
High level cloud: 12%
Most Significant Cloud Type: low
100%
0.1 In
12:00

S
S

10 / 18 mph 62 / 62°F 90%
Low level cloud: 31%
Mid level cloud: 44%
High level cloud: 33%
Most Significant Cloud Type: low
50%
0.0 In
18:00

NE
NE

6 / 12 mph 57 / 56°F 79%
Low level cloud: 70%
Mid level cloud: 41%
High level cloud: 0%
Most Significant Cloud Type: low
84%
0.0 In
Sat 01
Jun
00:00

SW
SW

17 / 31 mph 62 / 62°F 96%
Low level cloud: 26%
Mid level cloud: 21%
High level cloud: 25%
Most Significant Cloud Type: low
36%
0.0 In
06:00

ENE
ENE

2 / 3 mph 54 / 54°F 69%
Low level cloud: 6%
Mid level cloud: 19%
High level cloud: 10%
Most Significant Cloud Type: medium
35%
0.0 In
12:00

SSW
SSW

13 / 25 mph 66 / 66°F 95%
Low level cloud: 38%
Mid level cloud: 4%
High level cloud: 66%
Most Significant Cloud Type: low
47%
0.0 In
18:00

WSW
WSW

11 / 23 mph 57 / 54°F 82%
Low level cloud: 95%
Mid level cloud: 25%
High level cloud: 19%
Most Significant Cloud Type: low
100%
0.0 In
Sun 02
Jun
00:00

SSE
SSE

15 / 29 mph 59 / 59°F 93%
Low level cloud: 22%
Mid level cloud: 46%
High level cloud: 0%
Most Significant Cloud Type: low
37%
0.0 In
06:00

WNW
WNW

13 / 27 mph 56 / 53°F 85%
Low level cloud: 6%
Mid level cloud: 19%
High level cloud: 22%
Most Significant Cloud Type: medium
37%
0.1 In
12:00

SW
SW

25 / 46 mph 61 / 62°F 86%
Low level cloud: 29%
Mid level cloud: 6%
High level cloud: 14%
Most Significant Cloud Type: low
32%
0.0 In
18:00

WNW
WNW

9 / 19 mph 58 / 56°F 80%
Low level cloud: 36%
Mid level cloud: 5%
High level cloud: 2%
Most Significant Cloud Type: low
38%
0.0 In
Mon 03
Jun
00:00

WSW
WSW

26 / 49 mph 58 / 53°F 84%
Low level cloud: 31%
Mid level cloud: 0%
High level cloud: 17%
Most Significant Cloud Type: low
32%
0.0 In
06:00

NW
NW

9 / 18 mph 57 / 55°F 83%
Low level cloud: 45%
Mid level cloud: 27%
High level cloud: 100%
Most Significant Cloud Type: low
66%
0.0 In
12:00

SW
SW

28 / 54 mph 58 / 54°F 91%
Low level cloud: 59%
Mid level cloud: 8%
High level cloud: 71%
Most Significant Cloud Type: low
69%
0.0 In
18:00

WNW
WNW

9 / 18 mph 58 / 56°F 75%
Low level cloud: 26%
Mid level cloud: 70%
High level cloud: 55%
Most Significant Cloud Type: low
57%
0.0 In

Other Locations Near to Samson

The day label given represents the local day relative to the local time for the location you are looking at.
(More Info)

Day

This time is corrected for local time zones and where possible for daylight saving times.
(More Info)

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.
(More Info)

Dir

This refers to the sustained average wind speed, normally averaged over a period of 10 minutes for up to 3 hrs.
(More Info)

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.
(More Info)

Temp/
Feels Like

The relative humidity is the percent of saturation humidity, generally calculated in relation to saturated vapour density.
(More Info)

Humidity

The value given is a total predicted for the previous 3 hrs and includes the time of the forecast being looked at.
(More Info)

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.
(More Info)

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.
(More Info)

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.
(More Info)

Pressure