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El Alto 14 Day Long Range Forecast

14 Day weather providing an extended long range forecast outlook for El Alto

Bolivia

Long range weather outlook for El Alto includes 14 day forecast summary:

The forecast for El Alto in the coming two weeks is predicting the average daytime maximum temperature will be around 25°C, with a high for the two weeks of 29°C expected on the afternoon of Sunday 5th. The average minimum temperature will be 13°C, dipping to its lowest on the morning of Tuesday 14th at 11°C. Expect the following 14 days ahead to remain predominantly dry. On the whole winds are likely to be moderate.

DayLocal TimeDirSpeed/
Gust
Temp/
Feels Like
HumidityPressureCloud AmountPrecip AmountWeather
Sat 04
May
17:00

SW
SW

9 / 10 mph 75 / 76°F 51% 1011 mb
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 0%
Most Significant Cloud Type: medium
1%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
20:00

SSW
SSW

2 / 3 mph 65 / 65°F 72% 1014 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
23:00

SSW
SSW

2 / 2 mph 62 / 62°F 77% 1015 mb
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 33%
Most Significant Cloud Type: medium
3%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sun 05
May
02:00

ENE
ENE

1 / 1 mph 61 / 61°F 72% 1013 mb
Low level cloud: 0%
Mid level cloud: 1%
High level cloud: 18%
Most Significant Cloud Type: high
17%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
05:00

N
N

1 / 2 mph 56 / 56°F 80% 1013 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
08:00

SE
SE

1 / 1 mph 66 / 65°F 59% 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
11:00

SSW
SSW

6 / 7 mph 80 / 78°F 35% 1013 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
14:00

SSW
SSW

9 / 10 mph 85 / 81°F 27% 1010 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
17:00

SSW
SSW

9 / 11 mph 75 / 77°F 49% 1011 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
20:00

SSW
SSW

1 / 2 mph 67 / 67°F 67% 1014 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
23:00

SW
SW

2 / 4 mph 62 / 62°F 74% 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
Mon 06
May
02:00

ENE
ENE

1 / 1 mph 59 / 59°F 78% 1013 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
05:00

W
W

0 / 1 mph 56 / 56°F 84% 1013 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
08:00

WNW
WNW

0 / 0 mph 64 / 62°F 71% 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
11:00

SW
SW

5 / 6 mph 75 / 76°F 48% 1013 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
14:00

SSW
SSW

12 / 13 mph 80 / 79°F 36% 1010 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
17:00

SSW
SSW

8 / 9 mph 76 / 77°F 45% 1010 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
20:00

SW
SW

4 / 5 mph 61 / 61°F 79% 1014 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: medium
3%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
23:00

NE
NE

0 / 0 mph 60 / 60°F 83% 1015 mb
Low level cloud: 3%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: low
4%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Tue 07
May
02:00

S
S

1 / 2 mph 57 / 57°F 80% 1013 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: medium
3%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
05:00

SW
SW

2 / 3 mph 54 / 54°F 84% 1013 mb
Low level cloud: 0%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: medium
5%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
08:00

SW
SW

1 / 2 mph 59 / 58°F 79% 1015 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
11:00

SW
SW

6 / 8 mph 72 / 76°F 52% 1015 mb
Low level cloud: 0%
Mid level cloud: 8%
High level cloud: 0%
Most Significant Cloud Type: medium
8%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
14:00

SW
SW

14 / 16 mph 76 / 77°F 44% 1014 mb
Low level cloud: 0%
Mid level cloud: 13%
High level cloud: 0%
Most Significant Cloud Type: medium
12%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
17:00

SSW
SSW

7 / 9 mph 74 / 76°F 48% 1013 mb
Low level cloud: 0%
Mid level cloud: 28%
High level cloud: 0%
Most Significant Cloud Type: medium
28%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
20:00

SW
SW

2 / 3 mph 62 / 62°F 76% 1016 mb
Low level cloud: 0%
Mid level cloud: 14%
High level cloud: 0%
Most Significant Cloud Type: medium
14%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
23:00

S
S

2 / 2 mph 58 / 58°F 86% 1017 mb
Low level cloud: 8%
Mid level cloud: 13%
High level cloud: 0%
Most Significant Cloud Type: low
12%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Wed 08
May
02:00

SSW
SSW

1 / 2 mph 58 / 58°F 84% 1015 mb
Low level cloud: 7%
Mid level cloud: 9%
High level cloud: 0%
Most Significant Cloud Type: low
10%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
05:00

NE
NE

3 / 6 mph 56 / 56°F 82% 1014 mb
Low level cloud: 1%
Mid level cloud: 8%
High level cloud: 0%
Most Significant Cloud Type: medium
9%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
08:00

NE
NE

1 / 1 mph 61 / 59°F 76% 1014 mb
Low level cloud: 0%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: medium
5%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
11:00

SSW
SSW

10 / 12 mph 73 / 76°F 49% 1013 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: medium
4%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
14:00

SSW
SSW

6 / 7 mph 79 / 78°F 37% 1010 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: medium
3%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
17:00

SW
SW

10 / 11 mph 72 / 70°F 56% 1010 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: medium
3%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
20:00

WSW
WSW

0 / 1 mph 61 / 61°F 81% 1014 mb
Low level cloud: 6%
Mid level cloud: 6%
High level cloud: 5%
Most Significant Cloud Type: low
8%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
23:00

SSW
SSW

3 / 5 mph 58 / 59°F 82% 1014 mb
Low level cloud: 0%
Mid level cloud: 5%
High level cloud: 7%
Most Significant Cloud Type: medium
5%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Thu 09
May
02:00

SW
SW

2 / 5 mph 56 / 58°F 77% 1012 mb
Low level cloud: 0%
Mid level cloud: 6%
High level cloud: 17%
Most Significant Cloud Type: medium
6%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
05:00

NE
NE

1 / 2 mph 56 / 56°F 77% 1011 mb
Low level cloud: 0%
Mid level cloud: 8%
High level cloud: 34%
Most Significant Cloud Type: medium
9%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
08:00

WNW
WNW

1 / 1 mph 60 / 59°F 77% 1014 mb
Low level cloud: 0%
Mid level cloud: 12%
High level cloud: 46%
Most Significant Cloud Type: medium
14%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
11:00

SW
SW

6 / 6 mph 73 / 76°F 51% 1014 mb
Low level cloud: 0%
Mid level cloud: 10%
High level cloud: 32%
Most Significant Cloud Type: medium
11%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
14:00

SW
SW

9 / 11 mph 77 / 77°F 41% 1011 mb
Low level cloud: 0%
Mid level cloud: 11%
High level cloud: 18%
Most Significant Cloud Type: medium
12%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
17:00

SW
SW

9 / 10 mph 71 / 69°F 59% 1012 mb
Low level cloud: 0%
Mid level cloud: 9%
High level cloud: 13%
Most Significant Cloud Type: medium
9%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
20:00

SW
SW

2 / 3 mph 61 / 61°F 79% 1016 mb
Low level cloud: 0%
Mid level cloud: 7%
High level cloud: 13%
Most Significant Cloud Type: medium
7%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
23:00

WSW
WSW

0 / 0 mph 59 / 59°F 82% 1016 mb
Low level cloud: 0%
Mid level cloud: 7%
High level cloud: 17%
Most Significant Cloud Type: medium
7%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Fri 10
May
02:00

SW
SW

2 / 4 mph 57 / 58°F 79% 1015 mb
Low level cloud: 0%
Mid level cloud: 10%
High level cloud: 20%
Most Significant Cloud Type: medium
10%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
05:00

ESE
ESE

1 / 2 mph 54 / 54°F 82% 1014 mb
Low level cloud: 0%
Mid level cloud: 17%
High level cloud: 13%
Most Significant Cloud Type: medium
17%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
08:00

SW
SW

2 / 3 mph 62 / 60°F 69% 1015 mb
Low level cloud: 0%
Mid level cloud: 15%
High level cloud: 5%
Most Significant Cloud Type: medium
15%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
11:00

SW
SW

5 / 6 mph 75 / 76°F 45% 1014 mb
Low level cloud: 0%
Mid level cloud: 11%
High level cloud: 2%
Most Significant Cloud Type: medium
10%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
14:00

SW
SW

11 / 13 mph 79 / 78°F 35% 1011 mb
Low level cloud: 0%
Mid level cloud: 8%
High level cloud: 0%
Most Significant Cloud Type: medium
8%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
17:00

SW
SW

8 / 9 mph 72 / 76°F 54% 1012 mb
Low level cloud: 0%
Mid level cloud: 9%
High level cloud: 15%
Most Significant Cloud Type: medium
9%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
20:00

SW
SW

2 / 3 mph 61 / 61°F 78% 1015 mb
Low level cloud: 0%
Mid level cloud: 18%
High level cloud: 19%
Most Significant Cloud Type: medium
18%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
23:00

SSW
SSW

3 / 5 mph 60 / 60°F 79% 1015 mb
Low level cloud: 0%
Mid level cloud: 27%
High level cloud: 95%
Most Significant Cloud Type: medium
31%
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
02:00

NE
NE

0 / 0 mph 55 / 55°F 82% 1013 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: medium
4%
0.0 In
08:00

SW
SW

2 / 4 mph 59 / 60°F 77% 1014 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
14:00

SW
SW

9 / 11 mph 77 / 78°F 40% 1011 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: medium
3%
0.0 In
20:00

SSW
SSW

3 / 4 mph 60 / 60°F 84% 1015 mb
Low level cloud: 16%
Mid level cloud: 7%
High level cloud: 0%
Most Significant Cloud Type: low
18%
0.0 In
Sun 12
May
02:00

S
S

2 / 3 mph 56 / 58°F 85% 1015 mb
Low level cloud: 5%
Mid level cloud: 7%
High level cloud: 0%
Most Significant Cloud Type: low
7%
0.0 In
08:00

SSW
SSW

2 / 3 mph 58 / 60°F 76% 1014 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 9%
Most Significant Cloud Type: high
8%
0.0 In
14:00

SW
SW

10 / 11 mph 74 / 76°F 40% 1012 mb
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 19%
Most Significant Cloud Type: medium
2%
0.0 In
20:00

SW
SW

4 / 4 mph 58 / 58°F 86% 1015 mb
Low level cloud: 32%
Mid level cloud: 14%
High level cloud: 1%
Most Significant Cloud Type: low
36%
0.0 In
Mon 13
May
02:00

SW
SW

1 / 1 mph 56 / 56°F 82% 1014 mb
Low level cloud: 7%
Mid level cloud: 2%
High level cloud: 13%
Most Significant Cloud Type: low
9%
0.0 In
08:00

SW
SW

2 / 3 mph 58 / 58°F 77% 1015 mb
Low level cloud: 0%
Mid level cloud: 6%
High level cloud: 0%
Most Significant Cloud Type: medium
5%
0.0 In
14:00

SW
SW

10 / 12 mph 74 / 76°F 45% 1012 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 12%
Most Significant Cloud Type: medium
3%
0.0 In
20:00

SSW
SSW

3 / 4 mph 59 / 59°F 79% 1014 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: medium
3%
0.0 In
Tue 14
May
02:00

ESE
ESE

0 / 0 mph 54 / 54°F 86% 1015 mb
Low level cloud: 2%
Mid level cloud: 7%
High level cloud: 0%
Most Significant Cloud Type: medium
11%
0.0 In
08:00

N
N

1 / 2 mph 57 / 57°F 80% 1016 mb
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 0%
Most Significant Cloud Type: medium
2%
0.0 In
14:00

SSW
SSW

10 / 11 mph 78 / 77°F 32% 1011 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: medium
4%
0.0 In
20:00

S
S

2 / 2 mph 60 / 60°F 74% 1016 mb
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 4%
Most Significant Cloud Type: medium
2%
0.0 In
Wed 15
May
02:00

WSW
WSW

1 / 1 mph 55 / 55°F 81% 1013 mb
Low level cloud: 0%
Mid level cloud: 7%
High level cloud: 10%
Most Significant Cloud Type: medium
6%
0.0 In
08:00

SE
SE

1 / 2 mph 59 / 59°F 68% 1016 mb
Low level cloud: 0%
Mid level cloud: 1%
High level cloud: 10%
Most Significant Cloud Type: medium
1%
0.0 In
14:00

SSW
SSW

11 / 12 mph 73 / 76°F 44% 1012 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: medium
3%
0.0 In
20:00

SSW
SSW

2 / 3 mph 59 / 59°F 84% 1016 mb
Low level cloud: 8%
Mid level cloud: 8%
High level cloud: 0%
Most Significant Cloud Type: low
10%
0.0 In
Thu 16
May
02:00

SSE
SSE

1 / 1 mph 57 / 56°F 84% 1015 mb
Low level cloud: 11%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: low
12%
0.0 In
08:00

SSW
SSW

2 / 3 mph 56 / 57°F 85% 1016 mb
Low level cloud: 15%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: low
16%
0.0 In
14:00

SSW
SSW

11 / 12 mph 77 / 77°F 40% 1010 mb
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 0%
Most Significant Cloud Type: medium
2%
0.0 In
20:00

SSW
SSW

2 / 3 mph 59 / 59°F 80% 1015 mb
Low level cloud: 0%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: medium
4%
0.0 In
Fri 17
May
02:00

SW
SW

2 / 5 mph 55 / 56°F 79% 1013 mb
Low level cloud: 0%
Mid level cloud: 1%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
08:00

SW
SW

1 / 1 mph 57 / 57°F 78% 1013 mb
Low level cloud: 0%
Mid level cloud: 1%
High level cloud: 0%
Most Significant Cloud Type: medium
1%
0.0 In
14:00

SW
SW

9 / 11 mph 76 / 77°F 43% 1011 mb
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 0%
Most Significant Cloud Type: medium
2%
0.0 In
20:00

SW
SW

2 / 3 mph 60 / 60°F 73% 1013 mb
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 0%
Most Significant Cloud Type: medium
2%
0.0 In
Sat 18
May
02:00

SW
SW

1 / 2 mph 55 / 55°F 87% 1015 mb
Low level cloud: 3%
Mid level cloud: 3%
High level cloud: 95%
Most Significant Cloud Type: medium
15%
0.0 In
08:00

NE
NE

1 / 2 mph 60 / 60°F 65% 1014 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
14:00

SW
SW

10 / 11 mph 69 / 69°F 59% 1015 mb
Low level cloud: 0%
Mid level cloud: 8%
High level cloud: 37%
Most Significant Cloud Type: medium
9%
0.0 In
20:00

S
S

1 / 2 mph 61 / 61°F 61% 1015 mb
Low level cloud: 0%
Mid level cloud: 1%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
Sun 19
May
02:00

SSW
SSW

1 / 1 mph 56 / 56°F 88% 1016 mb
Low level cloud: 27%
Mid level cloud: 8%
High level cloud: 100%
Most Significant Cloud Type: low
41%
0.0 In
08:00

ENE
ENE

2 / 3 mph 63 / 63°F 51% 1015 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 78%
Most Significant Cloud Type: medium
7%
0.0 In
14:00

SW
SW

9 / 11 mph 70 / 70°F 56% 1014 mb
Low level cloud: 0%
Mid level cloud: 5%
High level cloud: 13%
Most Significant Cloud Type: medium
5%
0.0 In
20:00

ENE
ENE

2 / 3 mph 67 / 67°F 53% 1016 mb
Low level cloud: 0%
Mid level cloud: 43%
High level cloud: 68%
Most Significant Cloud Type: medium
45%
0.0 In

Other Locations Near to El Alto

Cities and Towns: Colca Canyon, Peru

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