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Huizen 14 Day Long Range Forecast

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

Netherlands

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

Reviewing the forecast for Huizen Over the next 14 days and the average daytime maximum temperature will be around 26°C, with a high for the two weeks of 32°C expected on the afternoon of Tuesday 17th. The mean minimum temperature will be 15°C, dipping to its lowest on the morning of Monday 9th at 10°C. The coming 14 days will have some days seeing a little precipitation and some days with rain. It looks like Sunday 8th will have the most precipitation with an accumulation of around 13.0mm. On the whole winds are likely to be moderate.

DayLocal TimeDirSpeed/
Gust		Temp/
Feels Like		HumidityPressureCloud AmountPrecip AmountWeather
Sun 08
Jun		19:00

WNW
WNW

 12 / 18 mph 56 / 52°F 66% 1018 mb
Low level cloud: 5%
Mid level cloud: 52%
High level cloud: 0%
Most Significant Cloud Type: medium
66%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

WSW
WSW

 6 / 9 mph 54 / 52°F 80% 1020 mb
Low level cloud: 23%
Mid level cloud: 46%
High level cloud: 0%
Most Significant Cloud Type: low
38%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Mon 09
Jun		01:00

SW
SW

 8 / 13 mph 51 / 48°F 89% 1020 mb
Low level cloud: 18%
Mid level cloud: 45%
High level cloud: 0%
Most Significant Cloud Type: low
33%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

SW
SW

 9 / 16 mph 50 / 47°F 91% 1020 mb
Low level cloud: 18%
Mid level cloud: 45%
High level cloud: 0%
Most Significant Cloud Type: low
33%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

WSW
WSW

 9 / 11 mph 57 / 54°F 78% 1021 mb
Low level cloud: 16%
Mid level cloud: 37%
High level cloud: 3%
Most Significant Cloud Type: low
29%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

W
W

 12 / 15 mph 63 / 62°F 65% 1021 mb
Low level cloud: 54%
Mid level cloud: 19%
High level cloud: 2%
Most Significant Cloud Type: low
60%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

W
W

 13 / 17 mph 66 / 65°F 54% 1021 mb
Low level cloud: 40%
Mid level cloud: 20%
High level cloud: 100%
Most Significant Cloud Type: low
58%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

W
W

 12 / 14 mph 66 / 65°F 53% 1021 mb
Low level cloud: 29%
Mid level cloud: 21%
High level cloud: 33%
Most Significant Cloud Type: low
40%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

W
W

 8 / 11 mph 65 / 63°F 61% 1021 mb
Low level cloud: 0%
Mid level cloud: 26%
High level cloud: 99%
Most Significant Cloud Type: medium
29%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

SSW
SSW

 6 / 12 mph 55 / 54°F 79% 1020 mb
Low level cloud: 0%
Mid level cloud: 57%
High level cloud: 56%
Most Significant Cloud Type: medium
58%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Tue 10
Jun		01:00

SSW
SSW

 9 / 15 mph 54 / 52°F 84% 1018 mb
Low level cloud: 0%
Mid level cloud: 50%
High level cloud: 100%
Most Significant Cloud Type: medium
54%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

SW
SW

 11 / 16 mph 54 / 51°F 79% 1016 mb
Low level cloud: 5%
Mid level cloud: 53%
High level cloud: 100%
Most Significant Cloud Type: medium
70%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

SW
SW

 14 / 19 mph 58 / 55°F 79% 1016 mb
Low level cloud: 80%
Mid level cloud: 89%
High level cloud: 58%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

WSW
WSW

 16 / 21 mph 61 / 61°F 74% 1016 mb
Low level cloud: 100%
Mid level cloud: 72%
High level cloud: 33%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

W
W

 13 / 17 mph 60 / 60°F 82% 1016 mb
Low level cloud: 98%
Mid level cloud: 44%
High level cloud: 2%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

W
W

 13 / 19 mph 61 / 61°F 83% 1017 mb
Low level cloud: 79%
Mid level cloud: 45%
High level cloud: 1%
Most Significant Cloud Type: low
94%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

WNW
WNW

 9 / 12 mph 63 / 61°F 72% 1018 mb
Low level cloud: 1%
Mid level cloud: 12%
High level cloud: 100%
Most Significant Cloud Type: medium
19%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

NW
NW

 5 / 6 mph 59 / 57°F 92% 1020 mb
Low level cloud: 2%
Mid level cloud: 4%
High level cloud: 3%
Most Significant Cloud Type: low
3%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Wed 11
Jun		01:00

NNW
NNW

 3 / 5 mph 53 / 53°F 92% 1021 mb
Low level cloud: 3%
Mid level cloud: 6%
High level cloud: 2%
Most Significant Cloud Type: low
5%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

NNE
NNE

 2 / 4 mph 51 / 52°F 91% 1021 mb
Low level cloud: 2%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: low
2%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

ESE
ESE

 3 / 4 mph 58 / 56°F 78% 1023 mb
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
10:00

E
E

 5 / 6 mph 66 / 64°F 58% 1022 mb
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
13:00

ENE
ENE

 5 / 6 mph 72 / 69°F 46% 1022 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
16:00

NE
NE

 7 / 9 mph 73 / 75°F 43% 1020 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
19:00

E
E

 7 / 9 mph 73 / 76°F 56% 1020 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
22:00

E
E

 9 / 12 mph 66 / 65°F 70% 1020 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 12
Jun		01:00

E
E

 10 / 16 mph 59 / 57°F 76% 1019 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

E
E

 11 / 19 mph 56 / 53°F 77% 1018 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 61%
Most Significant Cloud Type: high
61%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

E
E

 11 / 16 mph 62 / 60°F 68% 1017 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
10:00

ESE
ESE

 14 / 17 mph 73 / 76°F 50% 1016 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
13:00

SE
SE

 13 / 17 mph 80 / 80°F 49% 1015 mb
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 61%
Most Significant Cloud Type: medium
4%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

SSE
SSE

 9 / 12 mph 86 / 84°F 45% 1014 mb
Low level cloud: 0%
Mid level cloud: 16%
High level cloud: 0%
Most Significant Cloud Type: medium
16%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

WNW
WNW

 13 / 19 mph 78 / 78°F 61% 1016 mb
Low level cloud: 2%
Mid level cloud: 46%
High level cloud: 7%
Most Significant Cloud Type: medium
53%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

W
W

 5 / 9 mph 70 / 68°F 83% 1018 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
Fri 13
Jun		01:00

WNW
WNW

 3 / 7 mph 65 / 65°F 84% 1019 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 5%
Most Significant Cloud Type: medium
3%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

NE
NE

 3 / 5 mph 62 / 62°F 85% 1019 mb
Low level cloud: 0%
Mid level cloud: 10%
High level cloud: 6%
Most Significant Cloud Type: medium
10%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

ENE
ENE

 2 / 3 mph 72 / 69°F 70% 1020 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 4%
Most Significant Cloud Type: medium
3%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

E
E

 5 / 6 mph 80 / 79°F 56% 1020 mb
Low level cloud: 0%
Mid level cloud: 15%
High level cloud: 8%
Most Significant Cloud Type: medium
14%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

ENE
ENE

 7 / 9 mph 86 / 84°F 47% 1019 mb
Low level cloud: 0%
Mid level cloud: 10%
High level cloud: 0%
Most Significant Cloud Type: medium
10%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

E
E

 9 / 12 mph 87 / 85°F 44% 1018 mb
Low level cloud: 0%
Mid level cloud: 10%
High level cloud: 1%
Most Significant Cloud Type: medium
10%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

E
E

 10 / 16 mph 84 / 84°F 55% 1017 mb
Low level cloud: 0%
Mid level cloud: 8%
High level cloud: 0%
Most Significant Cloud Type: medium
7%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

ENE
ENE

 11 / 20 mph 74 / 77°F 82% 1018 mb
Low level cloud: 0%
Mid level cloud: 9%
High level cloud: 0%
Most Significant Cloud Type: medium
9%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sat 14
Jun		01:00

E
E

 9 / 17 mph 69 / 69°F 92% 1016 mb
Low level cloud: 0%
Mid level cloud: 13%
High level cloud: 0%
Most Significant Cloud Type: medium
13%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

ESE
ESE

 8 / 16 mph 68 / 68°F 93% 1015 mb
Low level cloud: 0%
Mid level cloud: 5%
High level cloud: 5%
Most Significant Cloud Type: medium
4%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

SE
SE

 8 / 14 mph 74 / 76°F 82% 1014 mb
Low level cloud: 0%
Mid level cloud: 8%
High level cloud: 15%
Most Significant Cloud Type: medium
8%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

S
S

 11 / 15 mph 85 / 85°F 54% 1014 mb
Low level cloud: 0%
Mid level cloud: 7%
High level cloud: 1%
Most Significant Cloud Type: medium
6%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

SW
SW

 10 / 13 mph 88 / 89°F 49% 1015 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 4%
Most Significant Cloud Type: medium
4%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

WNW
WNW

 9 / 10 mph 87 / 86°F 50% 1016 mb
Low level cloud: 0%
Mid level cloud: 6%
High level cloud: 6%
Most Significant Cloud Type: medium
5%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

NW
NW

 6 / 7 mph 84 / 85°F 61% 1015 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 3%
Most Significant Cloud Type: medium
4%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

N
N

 7 / 12 mph 73 / 76°F 82% 1016 mb
Low level cloud: 0%
Mid level cloud: 5%
High level cloud: 1%
Most Significant Cloud Type: medium
4%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
DayLocal TimeDirSpeed/
Gust		Temp/
Feels Like		HumidityPressureCloud AmountPrecip AmountWeather
Sun 15
Jun		01:00

NE
NE

 5 / 11 mph 59 / 59°F 83% 1023 mb
Low level cloud: 0%
Mid level cloud: 25%
High level cloud: 100%
Most Significant Cloud Type: medium
28%
0.0 In
07:00

NNE
NNE

 8 / 16 mph 63 / 63°F 72% 1028 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 35%
Most Significant Cloud Type: high
34%
0.0 In
13:00

WSW
WSW

 16 / 34 mph 66 / 66°F 53% 1020 mb
Low level cloud: 30%
Mid level cloud: 15%
High level cloud: 0%
Most Significant Cloud Type: low
35%
0.0 In
19:00

WNW
WNW

 7 / 16 mph 71 / 71°F 61% 1025 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 5%
Most Significant Cloud Type: medium
4%
0.0 In
Mon 16
Jun		01:00

ENE
ENE

 5 / 11 mph 60 / 60°F 86% 1032 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 6%
Most Significant Cloud Type: medium
3%
0.0 In
07:00

WNW
WNW

 5 / 11 mph 67 / 67°F 73% 1025 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 11%
Most Significant Cloud Type: medium
3%
0.0 In
13:00

WNW
WNW

 4 / 9 mph 74 / 78°F 65% 1018 mb
Low level cloud: 29%
Mid level cloud: 13%
High level cloud: 100%
Most Significant Cloud Type: low
45%
0.0 In
19:00

NNE
NNE

 7 / 14 mph 70 / 70°F 77% 1019 mb
Low level cloud: 2%
Mid level cloud: 19%
High level cloud: 60%
Most Significant Cloud Type: medium
26%
0.0 In
Tue 17
Jun		01:00

NE
NE

 12 / 25 mph 65 / 65°F 80% 1017 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 7%
Most Significant Cloud Type: high
6%
0.0 In
07:00

NNE
NNE

 6 / 13 mph 62 / 62°F 96% 1016 mb
Low level cloud: 96%
Mid level cloud: 18%
High level cloud: 100%
Most Significant Cloud Type: low
100%
0.1 In
13:00

ENE
ENE

 8 / 16 mph 88 / 89°F 41% 1015 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: medium
3%
0.0 In
19:00

NW
NW

 7 / 15 mph 65 / 65°F 89% 1016 mb
Low level cloud: 51%
Mid level cloud: 43%
High level cloud: 100%
Most Significant Cloud Type: low
77%
0.3 In
Wed 18
Jun		01:00

ENE
ENE

 11 / 23 mph 72 / 76°F 74% 1014 mb
Low level cloud: 0%
Mid level cloud: 12%
High level cloud: 0%
Most Significant Cloud Type: medium
11%
0.0 In
07:00

SSW
SSW

 7 / 14 mph 58 / 57°F 95% 1014 mb
Low level cloud: 55%
Mid level cloud: 82%
High level cloud: 100%
Most Significant Cloud Type: low
96%
0.0 In
13:00

E
E

 11 / 22 mph 83 / 84°F 47% 1014 mb
Low level cloud: 0%
Mid level cloud: 7%
High level cloud: 98%
Most Significant Cloud Type: medium
10%
0.0 In
19:00

SW
SW

 8 / 17 mph 66 / 66°F 67% 1013 mb
Low level cloud: 41%
Mid level cloud: 25%
High level cloud: 0%
Most Significant Cloud Type: low
49%
0.1 In
Thu 19
Jun		01:00

ENE
ENE

 8 / 16 mph 74 / 77°F 78% 1013 mb
Low level cloud: 0%
Mid level cloud: 10%
High level cloud: 100%
Most Significant Cloud Type: medium
13%
0.0 In
07:00

ENE
ENE

 2 / 4 mph 63 / 63°F 79% 1016 mb
Low level cloud: 9%
Mid level cloud: 43%
High level cloud: 1%
Most Significant Cloud Type: medium
68%
0.0 In
13:00

SSW
SSW

 5 / 11 mph 85 / 87°F 52% 1014 mb
Low level cloud: 3%
Mid level cloud: 20%
High level cloud: 87%
Most Significant Cloud Type: medium
30%
0.0 In
19:00

NE
NE

 12 / 25 mph 63 / 63°F 86% 1017 mb
Low level cloud: 5%
Mid level cloud: 45%
High level cloud: 14%
Most Significant Cloud Type: medium
59%
0.2 In
Fri 20
Jun		01:00

WSW
WSW

 4 / 9 mph 67 / 67°F 93% 1017 mb
Low level cloud: 0%
Mid level cloud: 46%
High level cloud: 100%
Most Significant Cloud Type: medium
50%
0.3 In
07:00

NE
NE

 13 / 27 mph 61 / 61°F 83% 1018 mb
Low level cloud: 13%
Mid level cloud: 47%
High level cloud: 14%
Most Significant Cloud Type: medium
83%
0.1 In
13:00

N
N

 8 / 17 mph 79 / 80°F 51% 1016 mb
Low level cloud: 36%
Mid level cloud: 18%
High level cloud: 7%
Most Significant Cloud Type: low
43%
0.1 In
19:00

NNE
NNE

 14 / 30 mph 66 / 66°F 80% 1019 mb
Low level cloud: 0%
Mid level cloud: 19%
High level cloud: 2%
Most Significant Cloud Type: medium
18%
0.2 In
Sat 21
Jun		01:00

N
N

 8 / 17 mph 62 / 62°F 97% 1014 mb
Low level cloud: 47%
Mid level cloud: 44%
High level cloud: 100%
Most Significant Cloud Type: low
74%
0.0 In
07:00

NNE
NNE

 11 / 23 mph 62 / 62°F 80% 1020 mb
Low level cloud: 1%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: medium
4%
0.0 In
13:00

N
N

 4 / 10 mph 68 / 68°F 88% 1012 mb
Low level cloud: 95%
Mid level cloud: 9%
High level cloud: 3%
Most Significant Cloud Type: low
99%
0.1 In
19:00

N
N

 14 / 29 mph 62 / 62°F 74% 1020 mb
Low level cloud: 2%
Mid level cloud: 21%
High level cloud: 100%
Most Significant Cloud Type: medium
29%
0.0 In
Sun 22
Jun		01:00

SW
SW

 5 / 10 mph 62 / 62°F 97% 1013 mb
Low level cloud: 60%
Mid level cloud: 18%
High level cloud: 11%
Most Significant Cloud Type: low
67%
0.1 In
07:00

NNW
NNW

 7 / 16 mph 59 / 60°F 65% 1020 mb
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 0%
Most Significant Cloud Type: medium
1%
0.0 In
13:00

SSW
SSW

 7 / 15 mph 69 / 69°F 65% 1014 mb
Low level cloud: 95%
Mid level cloud: 7%
High level cloud: 18%
Most Significant Cloud Type: low
99%
0.0 In
19:00

WNW
WNW

 9 / 20 mph 62 / 62°F 56% 1019 mb
Low level cloud: 0%
Mid level cloud: 1%
High level cloud: 49%
Most Significant Cloud Type: high
48%
0.0 In
Mon 23
Jun		01:00

NE
NE

 6 / 12 mph 62 / 62°F 91% 1013 mb
Low level cloud: 72%
Mid level cloud: 16%
High level cloud: 20%
Most Significant Cloud Type: low
80%
0.0 In
07:00

NW
NW

 5 / 11 mph 59 / 58°F 77% 1012 mb
Low level cloud: 53%
Mid level cloud: 97%
High level cloud: 0%
Most Significant Cloud Type: low
86%
0.0 In
13:00

N
N

 9 / 19 mph 62 / 62°F 98% 1011 mb
Low level cloud: 93%
Mid level cloud: 73%
High level cloud: 100%
Most Significant Cloud Type: low
100%
0.6 In
19:00

W
W

 7 / 16 mph 63 / 63°F 54% 1013 mb
Low level cloud: 0%
Mid level cloud: 10%
High level cloud: 14%
Most Significant Cloud Type: medium
10%
0.3 In

Other Locations Near to Huizen

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