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Concepcion 14 Day Long Range Forecast

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

Chile

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

Over the next 14 days the Concepcion forecast suggests the average daytime maximum temperature will be around 15°C, with a high for the two weeks of 20°C expected on the afternoon of Sunday 12th. The average minimum temperature will be 7°C, dipping to its lowest on the morning of Monday 13th at 3°C. Expect the coming 14 days to have some days seeing a little precipitation and some days with rain. It looks like Tuesday 7th will have the most precipitation with an accumulation of around 40.0mm. On the whole winds are likely to be light.

DayLocal TimeDirSpeed/
Gust
Temp/
Feels Like
HumidityPressureCloud AmountPrecip AmountWeather
Sun 05
May
17:00

NNW
NNW

5 / 6 mph 57 / 55°F 60% 1016 mb
Low level cloud: 1%
Mid level cloud: 79%
High level cloud: 0%
Most Significant Cloud Type: medium
81%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
20:00

NNW
NNW

8 / 9 mph 54 / 52°F 74% 1017 mb
Low level cloud: 15%
Mid level cloud: 21%
High level cloud: 0%
Most Significant Cloud Type: low
22%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
23:00

N
N

9 / 12 mph 52 / 48°F 77% 1017 mb
Low level cloud: 11%
Mid level cloud: 73%
High level cloud: 0%
Most Significant Cloud Type: medium
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Mon 06
May
02:00

NNE
NNE

11 / 15 mph 51 / 47°F 80% 1015 mb
Low level cloud: 2%
Mid level cloud: 45%
High level cloud: 0%
Most Significant Cloud Type: medium
51%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
05:00

NE
NE

9 / 13 mph 49 / 45°F 83% 1013 mb
Low level cloud: 1%
Mid level cloud: 31%
High level cloud: 0%
Most Significant Cloud Type: medium
33%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
08:00

NNE
NNE

9 / 12 mph 52 / 48°F 74% 1012 mb
Low level cloud: 63%
Mid level cloud: 46%
High level cloud: 0%
Most Significant Cloud Type: low
79%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
11:00

N
N

15 / 17 mph 59 / 59°F 64% 1012 mb
Low level cloud: 84%
Mid level cloud: 81%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
14:00

N
N

19 / 21 mph 65 / 65°F 76% 1010 mb
Low level cloud: 76%
Mid level cloud: 48%
High level cloud: 0%
Most Significant Cloud Type: low
92%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
17:00

N
N

20 / 24 mph 64 / 63°F 82% 1009 mb
Low level cloud: 65%
Mid level cloud: 17%
High level cloud: 4%
Most Significant Cloud Type: low
71%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
20:00

N
N

23 / 31 mph 58 / 54°F 84% 1008 mb
Low level cloud: 77%
Mid level cloud: 48%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
23:00

N
N

23 / 32 mph 54 / 49°F 86% 1007 mb
Low level cloud: 98%
Mid level cloud: 100%
High level cloud: 90%
Most Significant Cloud Type: low
100%
Expect 0.2 In of precipitation over the past 3 hours.
0.2 In
Tue 07
May
02:00

W
W

14 / 24 mph 49 / 43°F 94% 1007 mb
Low level cloud: 99%
Mid level cloud: 100%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.8 In of precipitation over the past 3 hours.
0.8 In
05:00

NW
NW

4 / 5 mph 47 / 46°F 88% 1009 mb
Low level cloud: 80%
Mid level cloud: 100%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.4 In of precipitation over the past 3 hours.
0.4 In
08:00

NNW
NNW

5 / 7 mph 50 / 47°F 79% 1009 mb
Low level cloud: 33%
Mid level cloud: 44%
High level cloud: 100%
Most Significant Cloud Type: low
60%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
11:00

W
W

5 / 6 mph 54 / 53°F 65% 1011 mb
Low level cloud: 13%
Mid level cloud: 100%
High level cloud: 22%
Most Significant Cloud Type: medium
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
14:00

WNW
WNW

7 / 9 mph 58 / 56°F 68% 1012 mb
Low level cloud: 7%
Mid level cloud: 44%
High level cloud: 0%
Most Significant Cloud Type: medium
63%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
17:00

WNW
WNW

6 / 8 mph 58 / 57°F 74% 1014 mb
Low level cloud: 28%
Mid level cloud: 18%
High level cloud: 92%
Most Significant Cloud Type: low
45%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
20:00

NNW
NNW

2 / 3 mph 55 / 56°F 77% 1017 mb
Low level cloud: 46%
Mid level cloud: 13%
High level cloud: 0%
Most Significant Cloud Type: low
50%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
23:00

N
N

5 / 7 mph 51 / 50°F 81% 1020 mb
Low level cloud: 16%
Mid level cloud: 46%
High level cloud: 0%
Most Significant Cloud Type: medium
89%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
Wed 08
May
02:00

NNW
NNW

6 / 11 mph 47 / 45°F 79% 1023 mb
Low level cloud: 84%
Mid level cloud: 81%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
05:00

NNW
NNW

6 / 13 mph 46 / 43°F 79% 1025 mb
Low level cloud: 85%
Mid level cloud: 63%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
08:00

N
N

5 / 10 mph 47 / 45°F 78% 1027 mb
Low level cloud: 78%
Mid level cloud: 66%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
11:00

NNE
NNE

8 / 11 mph 51 / 47°F 80% 1028 mb
Low level cloud: 34%
Mid level cloud: 36%
High level cloud: 0%
Most Significant Cloud Type: low
46%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
14:00

NNW
NNW

6 / 7 mph 53 / 51°F 71% 1027 mb
Low level cloud: 1%
Mid level cloud: 19%
High level cloud: 0%
Most Significant Cloud Type: medium
21%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
17:00

WNW
WNW

2 / 2 mph 53 / 53°F 70% 1027 mb
Low level cloud: 0%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: medium
4%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
20:00

SSE
SSE

4 / 5 mph 52 / 51°F 78% 1026 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 1%
Most Significant Cloud Type: high
1%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
23:00

SSE
SSE

6 / 8 mph 50 / 47°F 81% 1024 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 09
May
02:00

SE
SE

6 / 12 mph 44 / 40°F 83% 1021 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 12%
Most Significant Cloud Type: high
11%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
05:00

SE
SE

6 / 12 mph 43 / 39°F 82% 1020 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 100%
Most Significant Cloud Type: high
99%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
08:00

SSE
SSE

5 / 11 mph 43 / 39°F 78% 1019 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 100%
Most Significant Cloud Type: high
99%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
11:00

SSW
SSW

4 / 4 mph 57 / 57°F 60% 1019 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 100%
Most Significant Cloud Type: high
99%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
14:00

SW
SW

8 / 9 mph 64 / 63°F 65% 1017 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 21%
Most Significant Cloud Type: high
21%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
17:00

WSW
WSW

8 / 9 mph 62 / 62°F 78% 1018 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 30%
Most Significant Cloud Type: high
29%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
20:00

SSW
SSW

6 / 7 mph 56 / 55°F 88% 1018 mb
Low level cloud: 2%
Mid level cloud: 5%
High level cloud: 98%
Most Significant Cloud Type: medium
13%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
23:00

SSW
SSW

5 / 9 mph 49 / 47°F 89% 1018 mb
Low level cloud: 4%
Mid level cloud: 8%
High level cloud: 100%
Most Significant Cloud Type: medium
22%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Fri 10
May
02:00

SW
SW

10 / 14 mph 50 / 46°F 86% 1018 mb
Low level cloud: 15%
Mid level cloud: 4%
High level cloud: 100%
Most Significant Cloud Type: low
27%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
05:00

SSW
SSW

7 / 9 mph 50 / 47°F 80% 1018 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
08:00

SSE
SSE

4 / 7 mph 47 / 46°F 79% 1020 mb
Low level cloud: 0%
Mid level cloud: 96%
High level cloud: 100%
Most Significant Cloud Type: medium
99%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
11:00

SW
SW

5 / 6 mph 55 / 53°F 66% 1022 mb
Low level cloud: 0%
Mid level cloud: 11%
High level cloud: 0%
Most Significant Cloud Type: medium
11%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
14:00

WSW
WSW

8 / 9 mph 57 / 54°F 59% 1021 mb
Low level cloud: 0%
Mid level cloud: 7%
High level cloud: 0%
Most Significant Cloud Type: medium
6%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
17:00

SW
SW

8 / 9 mph 56 / 53°F 70% 1021 mb
Low level cloud: 0%
Mid level cloud: 17%
High level cloud: 0%
Most Significant Cloud Type: medium
17%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
20:00

SSW
SSW

8 / 11 mph 50 / 47°F 78% 1022 mb
Low level cloud: 0%
Mid level cloud: 7%
High level cloud: 0%
Most Significant Cloud Type: medium
6%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
23:00

S
S

7 / 9 mph 49 / 46°F 84% 1023 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
Sat 11
May
02:00

SSE
SSE

6 / 10 mph 45 / 42°F 86% 1022 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

SSE
SSE

5 / 9 mph 43 / 40°F 85% 1022 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
08:00

SE
SE

5 / 9 mph 42 / 39°F 83% 1023 mb
Low level cloud: 0%
Mid level cloud: 7%
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

S
S

4 / 5 mph 57 / 56°F 62% 1023 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

SW
SW

9 / 10 mph 62 / 61°F 56% 1022 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
17:00

SW
SW

11 / 13 mph 61 / 60°F 64% 1022 mb
Low level cloud: 6%
Mid level cloud: 9%
High level cloud: 0%
Most Significant Cloud Type: low
9%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
20:00

SSE
SSE

6 / 7 mph 52 / 50°F 72% 1024 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
23:00

SSE
SSE

7 / 11 mph 46 / 42°F 76% 1026 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
DayLocal TimeDirSpeed/
Gust
Temp/
Feels Like
HumidityPressureCloud AmountPrecip AmountWeather
Sun 12
May
02:00

NE
NE

6 / 14 mph 50 / 47°F 85% 1012 mb
Low level cloud: 87%
Mid level cloud: 44%
High level cloud: 32%
Most Significant Cloud Type: low
100%
0.0 In
08:00

E
E

4 / 9 mph 44 / 42°F 82% 1025 mb
Low level cloud: 0%
Mid level cloud: 17%
High level cloud: 0%
Most Significant Cloud Type: medium
16%
0.0 In
14:00

WSW
WSW

8 / 16 mph 62 / 62°F 56% 1023 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 18%
Most Significant Cloud Type: high
18%
0.0 In
20:00

SE
SE

6 / 13 mph 57 / 56°F 80% 1024 mb
Low level cloud: 1%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: medium
6%
0.0 In
Mon 13
May
02:00

S
S

6 / 13 mph 43 / 39°F 80% 1024 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
08:00

SSE
SSE

5 / 11 mph 41 / 37°F 86% 1021 mb
Low level cloud: 1%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
14:00

W
W

6 / 12 mph 61 / 61°F 66% 1015 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
20:00

SSE
SSE

5 / 11 mph 50 / 49°F 77% 1020 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 4%
Most Significant Cloud Type: medium
2%
0.0 In
Tue 14
May
02:00

NNE
NNE

11 / 23 mph 55 / 53°F 71% 1014 mb
Low level cloud: 58%
Mid level cloud: 2%
High level cloud: 100%
Most Significant Cloud Type: low
71%
0.0 In
08:00

E
E

3 / 7 mph 47 / 46°F 81% 1021 mb
Low level cloud: 43%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: low
44%
0.0 In
14:00

NNE
NNE

15 / 32 mph 56 / 52°F 90% 1012 mb
Low level cloud: 75%
Mid level cloud: 46%
High level cloud: 0%
Most Significant Cloud Type: low
91%
0.5 In
20:00

SSW
SSW

3 / 6 mph 58 / 59°F 89% 1024 mb
Low level cloud: 11%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
11%
0.0 In
Wed 15
May
02:00

NE
NE

7 / 14 mph 50 / 48°F 89% 1018 mb
Low level cloud: 79%
Mid level cloud: 13%
High level cloud: 6%
Most Significant Cloud Type: low
84%
0.2 In
08:00

SE
SE

6 / 12 mph 43 / 40°F 86% 1025 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 11%
Most Significant Cloud Type: high
11%
0.0 In
14:00

NNW
NNW

7 / 14 mph 55 / 54°F 72% 1023 mb
Low level cloud: 40%
Mid level cloud: 44%
High level cloud: 4%
Most Significant Cloud Type: low
55%
0.0 In
20:00

SSW
SSW

6 / 12 mph 49 / 47°F 75% 1020 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 100%
Most Significant Cloud Type: high
99%
0.0 In
Thu 16
May
02:00

ESE
ESE

4 / 7 mph 52 / 52°F 88% 1024 mb
Low level cloud: 1%
Mid level cloud: 1%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
08:00

SE
SE

4 / 10 mph 48 / 46°F 79% 1018 mb
Low level cloud: 0%
Mid level cloud: 7%
High level cloud: 7%
Most Significant Cloud Type: medium
7%
0.0 In
14:00

SSW
SSW

7 / 14 mph 71 / 71°F 64% 1020 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
20:00

SSE
SSE

5 / 10 mph 54 / 54°F 72% 1018 mb
Low level cloud: 0%
Mid level cloud: 5%
High level cloud: 84%
Most Significant Cloud Type: medium
8%
0.0 In
Fri 17
May
02:00

SE
SE

4 / 9 mph 55 / 55°F 88% 1018 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
08:00

SE
SE

5 / 11 mph 50 / 48°F 67% 1015 mb
Low level cloud: 0%
Mid level cloud: 56%
High level cloud: 100%
Most Significant Cloud Type: medium
60%
0.0 In
14:00

WSW
WSW

4 / 10 mph 66 / 66°F 65% 1018 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
20:00

NNE
NNE

6 / 13 mph 53 / 51°F 80% 1015 mb
Low level cloud: 84%
Mid level cloud: 97%
High level cloud: 9%
Most Significant Cloud Type: low
100%
0.0 In
Sat 18
May
02:00

SSW
SSW

1 / 2 mph 60 / 60°F 91% 1017 mb
Low level cloud: 23%
Mid level cloud: 1%
High level cloud: 8%
Most Significant Cloud Type: low
24%
0.0 In
08:00

S
S

3 / 6 mph 57 / 57°F 90% 1018 mb
Low level cloud: 18%
Mid level cloud: 18%
High level cloud: 0%
Most Significant Cloud Type: low
24%
0.4 In
14:00

N
N

18 / 38 mph 60 / 60°F 95% 1015 mb
Low level cloud: 100%
Mid level cloud: 97%
High level cloud: 32%
Most Significant Cloud Type: low
100%
0.2 In
20:00

E
E

1 / 1 mph 63 / 63°F 82% 1022 mb
Low level cloud: 0%
Mid level cloud: 7%
High level cloud: 0%
Most Significant Cloud Type: medium
7%
0.0 In
Sun 19
May
02:00

S
S

2 / 4 mph 53 / 54°F 89% 1020 mb
Low level cloud: 40%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
40%
0.3 In
08:00

SE
SE

5 / 10 mph 47 / 44°F 88% 1022 mb
Low level cloud: 0%
Mid level cloud: 15%
High level cloud: 3%
Most Significant Cloud Type: medium
16%
0.0 In
14:00

SSE
SSE

7 / 15 mph 57 / 55°F 65% 1024 mb
Low level cloud: 65%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
64%
0.0 In
20:00

SSW
SSW

4 / 8 mph 56 / 56°F 81% 1020 mb
Low level cloud: 0%
Mid level cloud: 44%
High level cloud: 86%
Most Significant Cloud Type: medium
47%
0.0 In
Mon 20
May
02:00

SSE
SSE

12 / 25 mph 43 / 37°F 66% 1023 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 20%
Most Significant Cloud Type: high
19%
0.0 In
08:00

SE
SE

3 / 6 mph 51 / 51°F 85% 1020 mb
Low level cloud: 2%
Mid level cloud: 2%
High level cloud: 0%
Most Significant Cloud Type: low
2%
0.0 In
14:00

SW
SW

4 / 9 mph 63 / 63°F 48% 1019 mb
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 91%
Most Significant Cloud Type: medium
5%
0.0 In
20:00

S
S

4 / 9 mph 55 / 54°F 79% 1023 mb
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 0%
Most Significant Cloud Type: medium
1%
0.0 In

Other Locations Near to Concepcion

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.
(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.
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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