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Hartford 14 Day Long Range Forecast

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

Connecticut, United States Of America

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

Taking a look at Hartford over the coming two weeks and the average daytime maximum temperature will be around 16°C, with a high for the two weeks of 23°C expected on the afternoon of Sunday 19th. The average minimum temperature will be 8°C, dipping to its lowest on the morning of Friday 17th at 3°C. Expect the next 14 days have most days seeing a little rain. The indicators are that Monday 13th will have the most precipitation with an accumulation of around 20.0mm. On the whole winds are likely to be light.

DayLocal TimeDirSpeed/
Gust		Temp/
Feels Like		HumidityPressureCloud AmountPrecip AmountWeather
Mon 13
Oct		16:00

NE
NE

 14 / 19 mph 52 / 48°F 94% 1017 mb
Low level cloud: 100%
Mid level cloud: 87%
High level cloud: 9%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

NNE
NNE

 13 / 18 mph 52 / 47°F 95% 1019 mb
Low level cloud: 100%
Mid level cloud: 81%
High level cloud: 6%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

NNE
NNE

 12 / 18 mph 51 / 47°F 95% 1018 mb
Low level cloud: 100%
Mid level cloud: 62%
High level cloud: 8%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Tue 14
Oct		01:00

NNE
NNE

 12 / 15 mph 51 / 47°F 96% 1018 mb
Low level cloud: 100%
Mid level cloud: 45%
High level cloud: 11%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

NNE
NNE

 11 / 15 mph 50 / 46°F 94% 1018 mb
Low level cloud: 100%
Mid level cloud: 50%
High level cloud: 8%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

NNE
NNE

 11 / 15 mph 50 / 46°F 92% 1019 mb
Low level cloud: 100%
Mid level cloud: 58%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

NNE
NNE

 10 / 12 mph 53 / 49°F 82% 1019 mb
Low level cloud: 98%
Mid level cloud: 46%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

NNE
NNE

 9 / 10 mph 55 / 53°F 74% 1018 mb
Low level cloud: 97%
Mid level cloud: 84%
High level cloud: 5%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

N
N

 5 / 9 mph 55 / 54°F 72% 1017 mb
Low level cloud: 92%
Mid level cloud: 49%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

NNW
NNW

 4 / 6 mph 55 / 55°F 81% 1018 mb
Low level cloud: 24%
Mid level cloud: 65%
High level cloud: 0%
Most Significant Cloud Type: low
46%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

NNW
NNW

 2 / 4 mph 53 / 54°F 94% 1017 mb
Low level cloud: 9%
Mid level cloud: 27%
High level cloud: 0%
Most Significant Cloud Type: medium
51%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Wed 15
Oct		01:00

NW
NW

 3 / 6 mph 51 / 51°F 96% 1016 mb
Low level cloud: 9%
Mid level cloud: 13%
High level cloud: 9%
Most Significant Cloud Type: low
14%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

NNW
NNW

 3 / 7 mph 48 / 48°F 96% 1015 mb
Low level cloud: 8%
Mid level cloud: 3%
High level cloud: 32%
Most Significant Cloud Type: low
12%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

NW
NW

 3 / 6 mph 49 / 49°F 91% 1014 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 33%
Most Significant Cloud Type: medium
4%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

NNW
NNW

 10 / 11 mph 63 / 62°F 59% 1014 mb
Low level cloud: 11%
Mid level cloud: 29%
High level cloud: 31%
Most Significant Cloud Type: low
25%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

NNW
NNW

 12 / 14 mph 62 / 61°F 48% 1013 mb
Low level cloud: 0%
Mid level cloud: 45%
High level cloud: 69%
Most Significant Cloud Type: medium
47%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

NNW
NNW

 10 / 12 mph 57 / 54°F 52% 1014 mb
Low level cloud: 0%
Mid level cloud: 6%
High level cloud: 6%
Most Significant Cloud Type: medium
6%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

N
N

 8 / 9 mph 50 / 47°F 58% 1016 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 3%
Most Significant Cloud Type: medium
3%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

NNW
NNW

 5 / 6 mph 47 / 44°F 68% 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
Thu 16
Oct		01:00

NW
NW

 5 / 10 mph 41 / 37°F 68% 1016 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
04:00

NW
NW

 5 / 10 mph 39 / 35°F 68% 1016 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
07:00

NNW
NNW

 6 / 10 mph 40 / 36°F 62% 1016 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
10:00

N
N

 12 / 14 mph 53 / 48°F 35% 1015 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
13:00

NNW
NNW

 13 / 15 mph 58 / 55°F 28% 1014 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
16:00

NNW
NNW

 12 / 14 mph 57 / 53°F 39% 1015 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
19:00

N
N

 9 / 11 mph 52 / 48°F 46% 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
22:00

NNW
NNW

 5 / 7 mph 46 / 43°F 59% 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
Fri 17
Oct		01:00

NW
NW

 3 / 6 mph 40 / 38°F 65% 1017 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 13%
Most Significant Cloud Type: high
12%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

NW
NW

 3 / 7 mph 37 / 34°F 69% 1017 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 67%
Most Significant Cloud Type: high
67%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

NNW
NNW

 3 / 6 mph 40 / 38°F 64% 1018 mb
Low level cloud: 0%
Mid level cloud: 9%
High level cloud: 98%
Most Significant Cloud Type: medium
12%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

N
N

 7 / 8 mph 55 / 52°F 40% 1017 mb
Low level cloud: 0%
Mid level cloud: 9%
High level cloud: 6%
Most Significant Cloud Type: medium
9%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

N
N

 6 / 7 mph 62 / 60°F 32% 1015 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 16%
Most Significant Cloud Type: high
16%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

NW
NW

 6 / 9 mph 58 / 56°F 44% 1014 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
19:00

NNW
NNW

 2 / 5 mph 46 / 46°F 62% 1016 mb
Low level cloud: 0%
Mid level cloud: 26%
High level cloud: 18%
Most Significant Cloud Type: medium
26%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

NNW
NNW

 2 / 3 mph 43 / 43°F 65% 1016 mb
Low level cloud: 0%
Mid level cloud: 41%
High level cloud: 9%
Most Significant Cloud Type: medium
41%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sat 18
Oct		01:00

N
N

 1 / 2 mph 47 / 47°F 58% 1015 mb
Low level cloud: 0%
Mid level cloud: 62%
High level cloud: 18%
Most Significant Cloud Type: medium
62%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

SSW
SSW

 0 / 0 mph 47 / 47°F 58% 1015 mb
Low level cloud: 0%
Mid level cloud: 51%
High level cloud: 98%
Most Significant Cloud Type: medium
54%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

WSW
WSW

 1 / 2 mph 48 / 48°F 60% 1016 mb
Low level cloud: 47%
Mid level cloud: 84%
High level cloud: 98%
Most Significant Cloud Type: low
87%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

W
W

 2 / 3 mph 56 / 56°F 56% 1016 mb
Low level cloud: 23%
Mid level cloud: 46%
High level cloud: 22%
Most Significant Cloud Type: low
41%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

WNW
WNW

 3 / 3 mph 68 / 67°F 48% 1013 mb
Low level cloud: 13%
Mid level cloud: 37%
High level cloud: 14%
Most Significant Cloud Type: low
28%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

SW
SW

 1 / 1 mph 67 / 65°F 61% 1012 mb
Low level cloud: 6%
Mid level cloud: 30%
High level cloud: 33%
Most Significant Cloud Type: medium
48%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

SSW
SSW

 2 / 4 mph 55 / 56°F 77% 1014 mb
Low level cloud: 1%
Mid level cloud: 20%
High level cloud: 30%
Most Significant Cloud Type: medium
24%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

S
S

 3 / 6 mph 52 / 53°F 80% 1014 mb
Low level cloud: 0%
Mid level cloud: 39%
High level cloud: 8%
Most Significant Cloud Type: medium
39%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sun 19
Oct		01:00

SSW
SSW

 2 / 5 mph 51 / 51°F 80% 1013 mb
Low level cloud: 0%
Mid level cloud: 10%
High level cloud: 0%
Most Significant Cloud Type: medium
9%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

SSW
SSW

 2 / 4 mph 48 / 49°F 78% 1013 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
07:00

SE
SE

 2 / 3 mph 50 / 50°F 79% 1012 mb
Low level cloud: 0%
Mid level cloud: 6%
High level cloud: 0%
Most Significant Cloud Type: medium
6%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

S
S

 7 / 8 mph 67 / 66°F 69% 1012 mb
Low level cloud: 19%
Mid level cloud: 11%
High level cloud: 6%
Most Significant Cloud Type: low
23%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

S
S

 11 / 12 mph 74 / 77°F 56% 1009 mb
Low level cloud: 4%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: low
6%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

SSE
SSE

 11 / 13 mph 70 / 69°F 66% 1008 mb
Low level cloud: 0%
Mid level cloud: 9%
High level cloud: 20%
Most Significant Cloud Type: medium
10%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

SSE
SSE

 9 / 14 mph 63 / 63°F 84% 1008 mb
Low level cloud: 47%
Mid level cloud: 44%
High level cloud: 100%
Most Significant Cloud Type: low
73%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

S
S

 10 / 15 mph 64 / 64°F 91% 1007 mb
Low level cloud: 100%
Mid level cloud: 45%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
DayLocal TimeDirSpeed/
Gust		Temp/
Feels Like		HumidityPressureCloud AmountPrecip AmountWeather
Mon 20
Oct		01:00

SSE
SSE

 1 / 1 mph 54 / 54°F 77% 1015 mb
Low level cloud: 2%
Mid level cloud: 36%
High level cloud: 38%
Most Significant Cloud Type: medium
42%
0.0 In
07:00

S
S

 10 / 16 mph 65 / 65°F 97% 1008 mb
Low level cloud: 100%
Mid level cloud: 45%
High level cloud: 17%
Most Significant Cloud Type: low
100%
0.0 In
13:00

W
W

 9 / 17 mph 57 / 55°F 72% 999 mb
Low level cloud: 85%
Mid level cloud: 42%
High level cloud: 0%
Most Significant Cloud Type: low
99%
0.0 In
19:00

SW
SW

 4 / 9 mph 62 / 62°F 96% 1007 mb
Low level cloud: 97%
Mid level cloud: 98%
High level cloud: 19%
Most Significant Cloud Type: low
100%
0.0 In
Tue 21
Oct		01:00

WNW
WNW

 6 / 10 mph 46 / 42°F 81% 1010 mb
Low level cloud: 32%
Mid level cloud: 17%
High level cloud: 0%
Most Significant Cloud Type: low
37%
0.0 In
07:00

W
W

 5 / 8 mph 49 / 47°F 82% 1007 mb
Low level cloud: 67%
Mid level cloud: 85%
High level cloud: 7%
Most Significant Cloud Type: low
97%
0.0 In
13:00

W
W

 10 / 17 mph 56 / 53°F 61% 1003 mb
Low level cloud: 70%
Mid level cloud: 46%
High level cloud: 0%
Most Significant Cloud Type: low
86%
0.0 In
19:00

W
W

 7 / 12 mph 58 / 57°F 73% 1011 mb
Low level cloud: 0%
Mid level cloud: 14%
High level cloud: 12%
Most Significant Cloud Type: medium
14%
0.0 In
Wed 22
Oct		01:00

SW
SW

 3 / 5 mph 51 / 51°F 91% 1006 mb
Low level cloud: 18%
Mid level cloud: 17%
High level cloud: 34%
Most Significant Cloud Type: low
27%
0.0 In
07:00

W
W

 3 / 5 mph 51 / 51°F 89% 1013 mb
Low level cloud: 24%
Mid level cloud: 46%
High level cloud: 0%
Most Significant Cloud Type: low
40%
0.0 In
13:00

E
E

 2 / 3 mph 53 / 53°F 95% 1003 mb
Low level cloud: 99%
Mid level cloud: 99%
High level cloud: 0%
Most Significant Cloud Type: low
100%
0.2 In
19:00

WNW
WNW

 4 / 6 mph 53 / 53°F 85% 1012 mb
Low level cloud: 0%
Mid level cloud: 26%
High level cloud: 40%
Most Significant Cloud Type: medium
27%
0.0 In
Thu 23
Oct		01:00

N
N

 5 / 9 mph 50 / 49°F 98% 1000 mb
Low level cloud: 99%
Mid level cloud: 44%
High level cloud: 17%
Most Significant Cloud Type: low
100%
0.1 In
07:00

NNW
NNW

 2 / 4 mph 54 / 55°F 81% 1011 mb
Low level cloud: 0%
Mid level cloud: 18%
High level cloud: 0%
Most Significant Cloud Type: medium
18%
0.0 In
13:00

WNW
WNW

 2 / 3 mph 54 / 54°F 94% 1002 mb
Low level cloud: 90%
Mid level cloud: 85%
High level cloud: 17%
Most Significant Cloud Type: low
100%
0.1 In
19:00

NNW
NNW

 4 / 7 mph 55 / 54°F 64% 1012 mb
Low level cloud: 43%
Mid level cloud: 18%
High level cloud: 0%
Most Significant Cloud Type: low
49%
0.0 In
Fri 24
Oct		01:00

WNW
WNW

 8 / 16 mph 49 / 45°F 88% 1005 mb
Low level cloud: 20%
Mid level cloud: 67%
High level cloud: 13%
Most Significant Cloud Type: medium
100%
0.0 In
07:00

WNW
WNW

 3 / 5 mph 46 / 46°F 88% 1017 mb
Low level cloud: 5%
Mid level cloud: 38%
High level cloud: 0%
Most Significant Cloud Type: medium
52%
0.0 In
13:00

WNW
WNW

 11 / 21 mph 56 / 54°F 61% 1005 mb
Low level cloud: 27%
Mid level cloud: 46%
High level cloud: 93%
Most Significant Cloud Type: low
54%
0.0 In
19:00

NW
NW

 3 / 5 mph 57 / 58°F 78% 1017 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: medium
3%
0.0 In
Sat 25
Oct		01:00

SW
SW

 3 / 6 mph 50 / 50°F 82% 1004 mb
Low level cloud: 2%
Mid level cloud: 91%
High level cloud: 43%
Most Significant Cloud Type: medium
96%
0.0 In
07:00

NNW
NNW

 2 / 3 mph 50 / 51°F 85% 1018 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 3%
Most Significant Cloud Type: medium
4%
0.0 In
13:00

WNW
WNW

 9 / 18 mph 62 / 62°F 49% 1003 mb
Low level cloud: 11%
Mid level cloud: 72%
High level cloud: 78%
Most Significant Cloud Type: medium
100%
0.0 In
19:00

WNW
WNW

 1 / 2 mph 60 / 60°F 63% 1017 mb
Low level cloud: 0%
Mid level cloud: 8%
High level cloud: 0%
Most Significant Cloud Type: medium
8%
0.0 In
Sun 26
Oct		01:00

WSW
WSW

 5 / 9 mph 51 / 50°F 78% 1008 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
07:00

NNE
NNE

 3 / 5 mph 51 / 50°F 72% 1019 mb
Low level cloud: 29%
Mid level cloud: 85%
High level cloud: 89%
Most Significant Cloud Type: medium
100%
0.0 In
13:00

S
S

 11 / 21 mph 66 / 66°F 44% 1009 mb
Low level cloud: 0%
Mid level cloud: 45%
High level cloud: 10%
Most Significant Cloud Type: medium
45%
0.0 In
19:00

ENE
ENE

 9 / 16 mph 51 / 48°F 94% 1016 mb
Low level cloud: 96%
Mid level cloud: 91%
High level cloud: 100%
Most Significant Cloud Type: low
100%
0.1 In
Mon 27
Oct		01:00

SSE
SSE

 9 / 18 mph 59 / 57°F 91% 1006 mb
Low level cloud: 40%
Mid level cloud: 50%
High level cloud: 18%
Most Significant Cloud Type: low
60%
0.1 In
07:00

ENE
ENE

 11 / 20 mph 48 / 44°F 93% 1013 mb
Low level cloud: 100%
Mid level cloud: 99%
High level cloud: 1%
Most Significant Cloud Type: low
100%
0.2 In
13:00

W
W

 9 / 19 mph 62 / 62°F 49% 1005 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
19:00

NE
NE

 12 / 22 mph 51 / 47°F 93% 1012 mb
Low level cloud: 100%
Mid level cloud: 94%
High level cloud: 0%
Most Significant Cloud Type: low
100%
0.4 In
Tue 28
Oct		01:00

WSW
WSW

 4 / 7 mph 49 / 48°F 84% 1009 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: medium
4%
0.0 In
07:00

NNE
NNE

 12 / 23 mph 41 / 35°F 93% 1010 mb
Low level cloud: 100%
Mid level cloud: 92%
High level cloud: 0%
Most Significant Cloud Type: low
100%
0.2 In
13:00

WSW
WSW

 9 / 19 mph 59 / 57°F 44% 1010 mb
Low level cloud: 14%
Mid level cloud: 99%
High level cloud: 0%
Most Significant Cloud Type: medium
100%
0.0 In
19:00

N
N

 10 / 19 mph 46 / 40°F 94% 1008 mb
Low level cloud: 100%
Mid level cloud: 96%
High level cloud: 0%
Most Significant Cloud Type: low
100%
0.2 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.
(More Info)

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