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Chingford Green 14 Day Long Range Forecast

14 Day weather providing an extended long range forecast outlook for Chingford Green

Waltham Forest, United Kingdom

Long range weather outlook for Chingford Green includes 14 day forecast summary:

For Chingford Green in the coming two weeks 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 Friday 10th. The mean minimum temperature will be 7°C, dipping to its lowest on the morning of Monday 13th at 4°C. The fortnight ahead will have most days seeing a little rain. Predictions are Saturday 11th will have the most precipitation with an accumulation of around 3.0mm. On the whole winds are likely to be light.

DayLocal TimeDirSpeed/
Gust
Temp/
Feels Like
HumidityPressureCloud AmountPrecip AmountWeather
Sat 04
May
12:00

SE
SE

6 / 7 mph 61 / 60°F 60% 1011 mb
Low level cloud: 86%
Mid level cloud: 46%
High level cloud: 11%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

SE
SE

5 / 7 mph 62 / 59°F 75% 1010 mb
Low level cloud: 47%
Mid level cloud: 46%
High level cloud: 11%
Most Significant Cloud Type: low
64%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

SE
SE

4 / 6 mph 59 / 57°F 83% 1009 mb
Low level cloud: 23%
Mid level cloud: 31%
High level cloud: 14%
Most Significant Cloud Type: low
35%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

ESE
ESE

3 / 6 mph 49 / 49°F 92% 1010 mb
Low level cloud: 11%
Mid level cloud: 13%
High level cloud: 32%
Most Significant Cloud Type: low
19%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sun 05
May
00:00

ESE
ESE

1 / 3 mph 47 / 47°F 92% 1009 mb
Low level cloud: 1%
Mid level cloud: 19%
High level cloud: 32%
Most Significant Cloud Type: medium
23%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

SSW
SSW

4 / 8 mph 45 / 44°F 95% 1009 mb
Low level cloud: 17%
Mid level cloud: 18%
High level cloud: 33%
Most Significant Cloud Type: low
27%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

S
S

3 / 5 mph 49 / 47°F 90% 1009 mb
Low level cloud: 0%
Mid level cloud: 16%
High level cloud: 22%
Most Significant Cloud Type: medium
16%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

SSE
SSE

6 / 6 mph 58 / 56°F 68% 1009 mb
Low level cloud: 0%
Mid level cloud: 5%
High level cloud: 15%
Most Significant Cloud Type: medium
5%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

S
S

10 / 11 mph 61 / 61°F 65% 1008 mb
Low level cloud: 96%
Mid level cloud: 45%
High level cloud: 80%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

S
S

6 / 6 mph 60 / 58°F 79% 1007 mb
Low level cloud: 52%
Mid level cloud: 24%
High level cloud: 100%
Most Significant Cloud Type: low
72%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

S
S

6 / 8 mph 59 / 57°F 81% 1007 mb
Low level cloud: 30%
Mid level cloud: 20%
High level cloud: 97%
Most Significant Cloud Type: low
48%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

S
S

3 / 5 mph 53 / 53°F 92% 1007 mb
Low level cloud: 13%
Mid level cloud: 43%
High level cloud: 100%
Most Significant Cloud Type: medium
84%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Mon 06
May
00:00

SSW
SSW

3 / 4 mph 53 / 53°F 94% 1007 mb
Low level cloud: 28%
Mid level cloud: 56%
High level cloud: 32%
Most Significant Cloud Type: low
51%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

E
E

1 / 2 mph 53 / 53°F 95% 1007 mb
Low level cloud: 52%
Mid level cloud: 46%
High level cloud: 53%
Most Significant Cloud Type: low
74%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

ENE
ENE

2 / 4 mph 52 / 52°F 93% 1007 mb
Low level cloud: 90%
Mid level cloud: 24%
High level cloud: 89%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

E
E

4 / 6 mph 53 / 53°F 88% 1008 mb
Low level cloud: 98%
Mid level cloud: 72%
High level cloud: 36%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

ENE
ENE

7 / 9 mph 56 / 54°F 93% 1009 mb
Low level cloud: 89%
Mid level cloud: 82%
High level cloud: 81%
Most Significant Cloud Type: low
100%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
15:00

ENE
ENE

6 / 7 mph 57 / 56°F 93% 1010 mb
Low level cloud: 96%
Mid level cloud: 91%
High level cloud: 32%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

NNE
NNE

6 / 7 mph 57 / 56°F 96% 1011 mb
Low level cloud: 62%
Mid level cloud: 85%
High level cloud: 33%
Most Significant Cloud Type: low
95%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

NNE
NNE

6 / 7 mph 55 / 53°F 98% 1013 mb
Low level cloud: 87%
Mid level cloud: 59%
High level cloud: 81%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Tue 07
May
00:00

NNE
NNE

8 / 11 mph 52 / 49°F 96% 1015 mb
Low level cloud: 98%
Mid level cloud: 97%
High level cloud: 20%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

NNE
NNE

8 / 12 mph 50 / 47°F 93% 1016 mb
Low level cloud: 75%
Mid level cloud: 44%
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

N
N

7 / 11 mph 50 / 47°F 91% 1018 mb
Low level cloud: 0%
Mid level cloud: 83%
High level cloud: 16%
Most Significant Cloud Type: medium
83%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

NNE
NNE

9 / 10 mph 59 / 56°F 72% 1020 mb
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
12:00

NNE
NNE

8 / 10 mph 65 / 63°F 63% 1021 mb
Low level cloud: 48%
Mid level cloud: 5%
High level cloud: 4%
Most Significant Cloud Type: low
49%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

N
N

9 / 11 mph 65 / 63°F 68% 1022 mb
Low level cloud: 39%
Mid level cloud: 20%
High level cloud: 12%
Most Significant Cloud Type: low
47%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

NNE
NNE

6 / 9 mph 63 / 61°F 80% 1023 mb
Low level cloud: 21%
Mid level cloud: 21%
High level cloud: 100%
Most Significant Cloud Type: low
40%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

NNE
NNE

6 / 11 mph 52 / 50°F 90% 1025 mb
Low level cloud: 2%
Mid level cloud: 45%
High level cloud: 46%
Most Significant Cloud Type: medium
52%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Wed 08
May
00:00

NNE
NNE

7 / 8 mph 51 / 48°F 88% 1026 mb
Low level cloud: 8%
Mid level cloud: 21%
High level cloud: 0%
Most Significant Cloud Type: low
15%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

N
N

6 / 10 mph 44 / 41°F 94% 1027 mb
Low level cloud: 29%
Mid level cloud: 31%
High level cloud: 0%
Most Significant Cloud Type: low
39%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

NNE
NNE

9 / 12 mph 48 / 43°F 92% 1028 mb
Low level cloud: 47%
Mid level cloud: 35%
High level cloud: 0%
Most Significant Cloud Type: low
59%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

NNE
NNE

10 / 12 mph 55 / 52°F 76% 1029 mb
Low level cloud: 93%
Mid level cloud: 44%
High level cloud: 3%
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 57 / 54°F 73% 1030 mb
Low level cloud: 84%
Mid level cloud: 19%
High level cloud: 1%
Most Significant Cloud Type: low
90%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

NNE
NNE

9 / 11 mph 58 / 55°F 73% 1029 mb
Low level cloud: 82%
Mid level cloud: 9%
High level cloud: 0%
Most Significant Cloud Type: low
84%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

NNE
NNE

6 / 8 mph 59 / 56°F 78% 1030 mb
Low level cloud: 55%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: low
56%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

NE
NE

6 / 10 mph 50 / 47°F 91% 1031 mb
Low level cloud: 8%
Mid level cloud: 3%
High level cloud: 6%
Most Significant Cloud Type: low
9%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Thu 09
May
00:00

NE
NE

6 / 9 mph 46 / 43°F 92% 1031 mb
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 5%
Most Significant Cloud Type: medium
2%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

NE
NE

6 / 11 mph 42 / 38°F 86% 1030 mb
Low level cloud: 0%
Mid level cloud: 1%
High level cloud: 8%
Most Significant Cloud Type: medium
1%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

NNE
NNE

5 / 9 mph 44 / 40°F 79% 1030 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 100%
Most Significant Cloud Type: medium
7%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

NNE
NNE

6 / 7 mph 54 / 51°F 63% 1030 mb
Low level cloud: 0%
Mid level cloud: 20%
High level cloud: 100%
Most Significant Cloud Type: medium
24%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

NE
NE

5 / 6 mph 60 / 59°F 60% 1029 mb
Low level cloud: 0%
Mid level cloud: 9%
High level cloud: 4%
Most Significant Cloud Type: medium
9%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

NE
NE

4 / 5 mph 65 / 62°F 58% 1027 mb
Low level cloud: 13%
Mid level cloud: 32%
High level cloud: 11%
Most Significant Cloud Type: low
25%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

NNE
NNE

5 / 6 mph 64 / 62°F 72% 1027 mb
Low level cloud: 1%
Mid level cloud: 9%
High level cloud: 9%
Most Significant Cloud Type: medium
12%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

E
E

3 / 6 mph 49 / 49°F 85% 1027 mb
Low level cloud: 0%
Mid level cloud: 1%
High level cloud: 100%
Most Significant Cloud Type: high
99%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Fri 10
May
00:00

SSE
SSE

1 / 3 mph 48 / 48°F 88% 1027 mb
Low level cloud: 0%
Mid level cloud: 7%
High level cloud: 86%
Most Significant Cloud Type: medium
10%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

WNW
WNW

1 / 2 mph 47 / 47°F 88% 1025 mb
Low level cloud: 0%
Mid level cloud: 10%
High level cloud: 14%
Most Significant Cloud Type: medium
10%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

NNW
NNW

2 / 3 mph 52 / 51°F 80% 1025 mb
Low level cloud: 5%
Mid level cloud: 9%
High level cloud: 33%
Most Significant Cloud Type: low
11%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

WNW
WNW

3 / 4 mph 63 / 61°F 69% 1024 mb
Low level cloud: 1%
Mid level cloud: 13%
High level cloud: 18%
Most Significant Cloud Type: medium
18%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

NW
NW

5 / 6 mph 69 / 66°F 63% 1023 mb
Low level cloud: 50%
Mid level cloud: 15%
High level cloud: 100%
Most Significant Cloud Type: low
67%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

NNW
NNW

8 / 9 mph 69 / 66°F 68% 1022 mb
Low level cloud: 32%
Mid level cloud: 47%
High level cloud: 100%
Most Significant Cloud Type: low
60%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

NNW
NNW

4 / 4 mph 67 / 64°F 78% 1021 mb
Low level cloud: 1%
Mid level cloud: 49%
High level cloud: 100%
Most Significant Cloud Type: medium
57%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

NNW
NNW

4 / 7 mph 58 / 58°F 92% 1021 mb
Low level cloud: 52%
Mid level cloud: 43%
High level cloud: 100%
Most Significant Cloud Type: low
79%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
DayLocal TimeDirSpeed/
Gust
Temp/
Feels Like
HumidityPressureCloud AmountPrecip AmountWeather
Sat 11
May
00:00

E
E

6 / 12 mph 54 / 53°F 89% 1018 mb
Low level cloud: 22%
Mid level cloud: 46%
High level cloud: 100%
Most Significant Cloud Type: low
50%
0.0 In
06:00

S
S

3 / 6 mph 64 / 64°F 81% 1020 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
12:00

ESE
ESE

5 / 11 mph 72 / 76°F 60% 1018 mb
Low level cloud: 4%
Mid level cloud: 8%
High level cloud: 33%
Most Significant Cloud Type: low
10%
0.0 In
18:00

ESE
ESE

8 / 17 mph 68 / 68°F 71% 1022 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: medium
3%
0.0 In
Sun 12
May
00:00

ESE
ESE

6 / 10 mph 57 / 56°F 90% 1022 mb
Low level cloud: 0%
Mid level cloud: 6%
High level cloud: 69%
Most Significant Cloud Type: medium
8%
0.0 In
06:00

ESE
ESE

4 / 8 mph 58 / 58°F 86% 1021 mb
Low level cloud: 46%
Mid level cloud: 58%
High level cloud: 13%
Most Significant Cloud Type: low
67%
0.0 In
12:00

ENE
ENE

12 / 24 mph 56 / 52°F 69% 1027 mb
Low level cloud: 94%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
94%
0.0 In
18:00

NNE
NNE

9 / 17 mph 63 / 63°F 67% 1026 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 7%
Most Significant Cloud Type: high
6%
0.0 In
Mon 13
May
00:00

NE
NE

7 / 14 mph 48 / 45°F 91% 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

NNE
NNE

5 / 9 mph 50 / 49°F 77% 1026 mb
Low level cloud: 0%
Mid level cloud: 11%
High level cloud: 0%
Most Significant Cloud Type: medium
10%
0.0 In
12:00

E
E

6 / 11 mph 67 / 67°F 50% 1027 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

8 / 15 mph 59 / 58°F 70% 1022 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 87%
Most Significant Cloud Type: high
86%
0.0 In
Tue 14
May
00:00

SW
SW

4 / 8 mph 56 / 56°F 61% 1023 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 24%
Most Significant Cloud Type: high
24%
0.0 In
06:00

NE
NE

6 / 12 mph 49 / 46°F 75% 1020 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: medium
2%
0.0 In
12:00

W
W

9 / 17 mph 68 / 68°F 63% 1018 mb
Low level cloud: 41%
Mid level cloud: 28%
High level cloud: 1%
Most Significant Cloud Type: low
51%
0.0 In
18:00

NE
NE

11 / 22 mph 57 / 54°F 78% 1016 mb
Low level cloud: 15%
Mid level cloud: 2%
High level cloud: 0%
Most Significant Cloud Type: low
15%
0.0 In
Wed 15
May
00:00

NW
NW

4 / 9 mph 56 / 55°F 90% 1015 mb
Low level cloud: 48%
Mid level cloud: 34%
High level cloud: 2%
Most Significant Cloud Type: low
60%
0.0 In
06:00

NE
NE

10 / 19 mph 49 / 45°F 93% 1013 mb
Low level cloud: 32%
Mid level cloud: 5%
High level cloud: 1%
Most Significant Cloud Type: low
34%
0.0 In
12:00

W
W

9 / 17 mph 62 / 62°F 81% 1013 mb
Low level cloud: 91%
Mid level cloud: 70%
High level cloud: 28%
Most Significant Cloud Type: low
100%
0.0 In
18:00

ENE
ENE

14 / 27 mph 56 / 52°F 71% 1011 mb
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 0%
Most Significant Cloud Type: medium
2%
0.0 In
Thu 16
May
00:00

N
N

4 / 7 mph 59 / 59°F 93% 1009 mb
Low level cloud: 99%
Mid level cloud: 29%
High level cloud: 6%
Most Significant Cloud Type: low
100%
0.1 In
06:00

NE
NE

12 / 22 mph 49 / 44°F 89% 1012 mb
Low level cloud: 28%
Mid level cloud: 2%
High level cloud: 4%
Most Significant Cloud Type: low
28%
0.0 In
12:00

WNW
WNW

11 / 22 mph 60 / 60°F 73% 1007 mb
Low level cloud: 78%
Mid level cloud: 43%
High level cloud: 0%
Most Significant Cloud Type: low
93%
0.1 In
18:00

NE
NE

12 / 23 mph 60 / 60°F 78% 1010 mb
Low level cloud: 24%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
24%
0.0 In
Fri 17
May
00:00

WNW
WNW

8 / 16 mph 48 / 44°F 79% 1012 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
06:00

NNE
NNE

12 / 23 mph 52 / 48°F 93% 1013 mb
Low level cloud: 68%
Mid level cloud: 18%
High level cloud: 0%
Most Significant Cloud Type: low
74%
0.0 In
12:00

NW
NW

10 / 22 mph 54 / 51°F 65% 1017 mb
Low level cloud: 86%
Mid level cloud: 6%
High level cloud: 18%
Most Significant Cloud Type: low
90%
0.0 In
18:00

NNE
NNE

12 / 23 mph 58 / 56°F 78% 1017 mb
Low level cloud: 15%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: low
16%
0.0 In
Sat 18
May
00:00

WNW
WNW

0 / 1 mph 49 / 49°F 84% 1019 mb
Low level cloud: 39%
Mid level cloud: 3%
High level cloud: 33%
Most Significant Cloud Type: low
43%
0.0 In
06:00

NNE
NNE

8 / 15 mph 50 / 47°F 90% 1022 mb
Low level cloud: 16%
Mid level cloud: 0%
High level cloud: 100%
Most Significant Cloud Type: low
28%
0.0 In
12:00

NW
NW

2 / 5 mph 67 / 67°F 50% 1020 mb
Low level cloud: 33%
Mid level cloud: 0%
High level cloud: 12%
Most Significant Cloud Type: low
34%
0.0 In
18:00

NNE
NNE

6 / 13 mph 62 / 62°F 73% 1023 mb
Low level cloud: 46%
Mid level cloud: 16%
High level cloud: 100%
Most Significant Cloud Type: low
63%
0.0 In
Sun 19
May
00:00

SSE
SSE

3 / 6 mph 59 / 59°F 87% 1021 mb
Low level cloud: 0%
Mid level cloud: 1%
High level cloud: 1%
Most Significant Cloud Type: medium
1%
0.0 In
06:00

W
W

1 / 3 mph 59 / 59°F 82% 1024 mb
Low level cloud: 4%
Mid level cloud: 0%
High level cloud: 53%
Most Significant Cloud Type: medium
13%
0.0 In
12:00

ESE
ESE

9 / 18 mph 68 / 68°F 56% 1020 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 2%
Most Significant Cloud Type: medium
3%
0.0 In
18:00

NW
NW

4 / 7 mph 67 / 67°F 75% 1020 mb
Low level cloud: 21%
Mid level cloud: 21%
High level cloud: 50%
Most Significant Cloud Type: low
34%
0.1 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