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Whangarei 14 Day Long Range Forecast

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

New Zealand

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

Taking a look at Whangarei over the coming two weeks and the average daytime maximum temperature will be around 15°C, with a high for the two weeks of 18°C expected on the afternoon of Wednesday 4th. The mean minimum temperature will be 9°C, dipping to its lowest on the morning of Wednesday 11th at 4°C. The coming 14 days will have some days seeing a little precipitation and some days with rain. Predictions are Friday 6th will have the most precipitation with an accumulation of around 18.0mm. On the whole winds are likely to be light.

DayLocal TimeDirSpeed/
Gust
Temp/
Feels Like
HumidityPressureCloud AmountPrecip AmountWeather
Tue 03
Jun
15:00

NNE
NNE

4 / 4 mph 63 / 62°F 56% 1018 mb
Low level cloud: 3%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
2%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

N
N

4 / 8 mph 52 / 51°F 86% 1018 mb
Low level cloud: 8%
Mid level cloud: 0%
High level cloud: 32%
Most Significant Cloud Type: low
11%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

NNE
NNE

4 / 9 mph 50 / 49°F 84% 1018 mb
Low level cloud: 26%
Mid level cloud: 20%
High level cloud: 99%
Most Significant Cloud Type: low
45%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Wed 04
Jun
00:00

NNE
NNE

8 / 15 mph 57 / 56°F 92% 1015 mb
Low level cloud: 88%
Mid level cloud: 44%
High level cloud: 8%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

N
N

11 / 17 mph 61 / 61°F 89% 1013 mb
Low level cloud: 97%
Mid level cloud: 44%
High level cloud: 32%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

N
N

12 / 17 mph 63 / 63°F 88% 1011 mb
Low level cloud: 99%
Mid level cloud: 29%
High level cloud: 99%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

N
N

12 / 17 mph 64 / 64°F 88% 1010 mb
Low level cloud: 100%
Mid level cloud: 23%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

N
N

14 / 22 mph 65 / 65°F 95% 1007 mb
Low level cloud: 100%
Mid level cloud: 54%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

N
N

15 / 25 mph 64 / 64°F 95% 1003 mb
Low level cloud: 91%
Mid level cloud: 63%
High level cloud: 58%
Most Significant Cloud Type: low
100%
Expect 0.2 In of precipitation over the past 3 hours.
0.2 In
18:00

N
N

13 / 22 mph 64 / 64°F 96% 1001 mb
Low level cloud: 97%
Mid level cloud: 44%
High level cloud: 95%
Most Significant Cloud Type: low
100%
Expect 0.3 In of precipitation over the past 3 hours.
0.3 In
21:00

NNW
NNW

11 / 17 mph 63 / 63°F 94% 1001 mb
Low level cloud: 96%
Mid level cloud: 13%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Thu 05
Jun
00:00

NNW
NNW

7 / 12 mph 62 / 62°F 93% 1001 mb
Low level cloud: 74%
Mid level cloud: 4%
High level cloud: 99%
Most Significant Cloud Type: low
86%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

NW
NW

5 / 9 mph 59 / 60°F 95% 1001 mb
Low level cloud: 63%
Mid level cloud: 2%
High level cloud: 64%
Most Significant Cloud Type: low
71%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

WNW
WNW

3 / 6 mph 59 / 60°F 93% 1002 mb
Low level cloud: 41%
Mid level cloud: 9%
High level cloud: 15%
Most Significant Cloud Type: low
45%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

WSW
WSW

2 / 3 mph 59 / 60°F 91% 1003 mb
Low level cloud: 57%
Mid level cloud: 20%
High level cloud: 99%
Most Significant Cloud Type: low
75%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

WSW
WSW

3 / 3 mph 63 / 63°F 70% 1002 mb
Low level cloud: 77%
Mid level cloud: 45%
High level cloud: 92%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

SE
SE

1 / 1 mph 62 / 62°F 80% 1000 mb
Low level cloud: 97%
Mid level cloud: 66%
High level cloud: 72%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

SE
SE

2 / 3 mph 59 / 59°F 88% 1000 mb
Low level cloud: 95%
Mid level cloud: 46%
High level cloud: 15%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

ESE
ESE

2 / 3 mph 57 / 59°F 93% 999 mb
Low level cloud: 92%
Mid level cloud: 32%
High level cloud: 24%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Fri 06
Jun
00:00

ENE
ENE

2 / 3 mph 57 / 57°F 97% 998 mb
Low level cloud: 95%
Mid level cloud: 90%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

SSW
SSW

2 / 3 mph 57 / 58°F 99% 996 mb
Low level cloud: 89%
Mid level cloud: 86%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.2 In of precipitation over the past 3 hours.
0.2 In
06:00

SSW
SSW

9 / 13 mph 52 / 49°F 97% 997 mb
Low level cloud: 97%
Mid level cloud: 99%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.2 In of precipitation over the past 3 hours.
0.2 In
09:00

SSW
SSW

9 / 13 mph 50 / 46°F 97% 998 mb
Low level cloud: 83%
Mid level cloud: 99%
High level cloud: 92%
Most Significant Cloud Type: low
100%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
12:00

SW
SW

9 / 12 mph 54 / 51°F 89% 998 mb
Low level cloud: 73%
Mid level cloud: 46%
High level cloud: 8%
Most Significant Cloud Type: low
90%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
15:00

WSW
WSW

8 / 10 mph 57 / 54°F 62% 998 mb
Low level cloud: 2%
Mid level cloud: 31%
High level cloud: 0%
Most Significant Cloud Type: medium
35%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

W
W

6 / 10 mph 49 / 46°F 86% 999 mb
Low level cloud: 54%
Mid level cloud: 43%
High level cloud: 0%
Most Significant Cloud Type: low
69%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

WNW
WNW

6 / 11 mph 47 / 44°F 84% 1000 mb
Low level cloud: 1%
Mid level cloud: 26%
High level cloud: 0%
Most Significant Cloud Type: medium
30%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sat 07
Jun
00:00

WNW
WNW

7 / 13 mph 46 / 42°F 83% 1000 mb
Low level cloud: 5%
Mid level cloud: 46%
High level cloud: 0%
Most Significant Cloud Type: medium
59%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

W
W

8 / 15 mph 46 / 42°F 80% 999 mb
Low level cloud: 25%
Mid level cloud: 46%
High level cloud: 0%
Most Significant Cloud Type: low
40%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

W
W

8 / 15 mph 46 / 42°F 81% 1000 mb
Low level cloud: 21%
Mid level cloud: 46%
High level cloud: 0%
Most Significant Cloud Type: low
36%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

W
W

4 / 7 mph 49 / 47°F 80% 1002 mb
Low level cloud: 13%
Mid level cloud: 43%
High level cloud: 0%
Most Significant Cloud Type: medium
80%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

SSW
SSW

3 / 4 mph 51 / 50°F 85% 1002 mb
Low level cloud: 41%
Mid level cloud: 15%
High level cloud: 0%
Most Significant Cloud Type: low
46%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

SSW
SSW

9 / 11 mph 53 / 50°F 73% 1003 mb
Low level cloud: 3%
Mid level cloud: 10%
High level cloud: 0%
Most Significant Cloud Type: medium
17%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

SW
SW

4 / 8 mph 45 / 43°F 82% 1005 mb
Low level cloud: 0%
Mid level cloud: 72%
High level cloud: 0%
Most Significant Cloud Type: medium
72%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

W
W

4 / 8 mph 44 / 42°F 92% 1008 mb
Low level cloud: 7%
Mid level cloud: 100%
High level cloud: 0%
Most Significant Cloud Type: medium
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sun 08
Jun
00:00

WNW
WNW

2 / 4 mph 45 / 45°F 96% 1009 mb
Low level cloud: 46%
Mid level cloud: 100%
High level cloud: 0%
Most Significant Cloud Type: low
81%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
03:00

SSW
SSW

2 / 2 mph 45 / 45°F 98% 1009 mb
Low level cloud: 39%
Mid level cloud: 100%
High level cloud: 0%
Most Significant Cloud Type: low
73%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
06:00

W
W

3 / 6 mph 44 / 42°F 98% 1009 mb
Low level cloud: 23%
Mid level cloud: 100%
High level cloud: 0%
Most Significant Cloud Type: medium
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

SW
SW

3 / 5 mph 46 / 45°F 94% 1011 mb
Low level cloud: 7%
Mid level cloud: 45%
High level cloud: 0%
Most Significant Cloud Type: medium
63%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

SSW
SSW

6 / 6 mph 54 / 51°F 66% 1011 mb
Low level cloud: 7%
Mid level cloud: 15%
High level cloud: 0%
Most Significant Cloud Type: low
11%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

SW
SW

6 / 8 mph 55 / 53°F 59% 1011 mb
Low level cloud: 16%
Mid level cloud: 45%
High level cloud: 0%
Most Significant Cloud Type: low
31%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

W
W

3 / 6 mph 46 / 44°F 82% 1013 mb
Low level cloud: 4%
Mid level cloud: 1%
High level cloud: 0%
Most Significant Cloud Type: low
4%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

WNW
WNW

4 / 9 mph 43 / 41°F 85% 1014 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 1%
Most Significant Cloud Type: high
0%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Mon 09
Jun
00:00

W
W

4 / 8 mph 40 / 38°F 86% 1015 mb
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 82%
Most Significant Cloud Type: medium
5%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

W
W

4 / 8 mph 40 / 37°F 86% 1015 mb
Low level cloud: 7%
Mid level cloud: 11%
High level cloud: 0%
Most Significant Cloud Type: low
10%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

W
W

4 / 9 mph 40 / 37°F 88% 1015 mb
Low level cloud: 3%
Mid level cloud: 22%
High level cloud: 0%
Most Significant Cloud Type: medium
29%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

W
W

3 / 5 mph 47 / 46°F 77% 1017 mb
Low level cloud: 4%
Mid level cloud: 43%
High level cloud: 0%
Most Significant Cloud Type: medium
53%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

SSW
SSW

7 / 9 mph 54 / 52°F 69% 1017 mb
Low level cloud: 25%
Mid level cloud: 27%
High level cloud: 0%
Most Significant Cloud Type: low
34%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

SSW
SSW

7 / 8 mph 55 / 53°F 66% 1017 mb
Low level cloud: 15%
Mid level cloud: 26%
High level cloud: 0%
Most Significant Cloud Type: low
23%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

SSW
SSW

3 / 7 mph 45 / 43°F 83% 1018 mb
Low level cloud: 31%
Mid level cloud: 46%
High level cloud: 0%
Most Significant Cloud Type: low
47%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

SSW
SSW

3 / 6 mph 47 / 46°F 78% 1020 mb
Low level cloud: 13%
Mid level cloud: 98%
High level cloud: 0%
Most Significant Cloud Type: medium
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
DayLocal TimeDirSpeed/
Gust
Temp/
Feels Like
HumidityPressureCloud AmountPrecip AmountWeather
Tue 10
Jun
00:00

SSW
SSW

3 / 5 mph 48 / 48°F 88% 1028 mb
Low level cloud: 29%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
29%
0.0 In
06:00

SW
SW

2 / 5 mph 46 / 46°F 90% 1019 mb
Low level cloud: 61%
Mid level cloud: 46%
High level cloud: 0%
Most Significant Cloud Type: low
77%
0.0 In
12:00

SW
SW

1 / 3 mph 51 / 51°F 75% 1024 mb
Low level cloud: 55%
Mid level cloud: 9%
High level cloud: 0%
Most Significant Cloud Type: low
58%
0.0 In
18:00

WSW
WSW

2 / 4 mph 50 / 51°F 85% 1026 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
Wed 11
Jun
00:00

WNW
WNW

3 / 6 mph 47 / 46°F 95% 1028 mb
Low level cloud: 9%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
8%
0.0 In
06:00

W
W

3 / 6 mph 49 / 49°F 82% 1027 mb
Low level cloud: 86%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
86%
0.0 In
12:00

NNE
NNE

11 / 24 mph 60 / 60°F 97% 1011 mb
Low level cloud: 96%
Mid level cloud: 57%
High level cloud: 98%
Most Significant Cloud Type: low
100%
0.0 In
18:00

NNE
NNE

3 / 7 mph 51 / 51°F 89% 1022 mb
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 32%
Most Significant Cloud Type: medium
4%
0.0 In
Thu 12
Jun
00:00

NW
NW

7 / 14 mph 59 / 59°F 97% 1002 mb
Low level cloud: 73%
Mid level cloud: 16%
High level cloud: 80%
Most Significant Cloud Type: low
88%
1.4 In
06:00

NNE
NNE

9 / 20 mph 57 / 54°F 83% 1017 mb
Low level cloud: 43%
Mid level cloud: 46%
High level cloud: 100%
Most Significant Cloud Type: low
70%
0.0 In
12:00

WNW
WNW

7 / 15 mph 63 / 63°F 70% 1006 mb
Low level cloud: 31%
Mid level cloud: 1%
High level cloud: 0%
Most Significant Cloud Type: low
30%
0.0 In
18:00

NNW
NNW

10 / 21 mph 61 / 61°F 95% 1010 mb
Low level cloud: 63%
Mid level cloud: 9%
High level cloud: 0%
Most Significant Cloud Type: low
66%
0.7 In
Fri 13
Jun
00:00

NNW
NNW

5 / 10 mph 55 / 54°F 94% 1010 mb
Low level cloud: 8%
Mid level cloud: 24%
High level cloud: 5%
Most Significant Cloud Type: medium
46%
0.0 In
06:00

NW
NW

3 / 6 mph 52 / 52°F 97% 1014 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 20%
Most Significant Cloud Type: high
20%
0.0 In
12:00

NW
NW

6 / 12 mph 63 / 63°F 76% 1009 mb
Low level cloud: 13%
Mid level cloud: 100%
High level cloud: 7%
Most Significant Cloud Type: medium
100%
0.0 In
18:00

NNW
NNW

5 / 11 mph 60 / 60°F 87% 1012 mb
Low level cloud: 0%
Mid level cloud: 20%
High level cloud: 100%
Most Significant Cloud Type: medium
23%
0.0 In
Sat 14
Jun
00:00

WNW
WNW

3 / 7 mph 54 / 54°F 98% 1008 mb
Low level cloud: 17%
Mid level cloud: 8%
High level cloud: 0%
Most Significant Cloud Type: low
19%
0.0 In
06:00

NW
NW

6 / 13 mph 56 / 55°F 91% 1010 mb
Low level cloud: 29%
Mid level cloud: 18%
High level cloud: 91%
Most Significant Cloud Type: low
45%
0.0 In
12:00

W
W

7 / 15 mph 62 / 62°F 77% 1010 mb
Low level cloud: 21%
Mid level cloud: 7%
High level cloud: 12%
Most Significant Cloud Type: low
25%
0.0 In
18:00

WNW
WNW

6 / 13 mph 64 / 64°F 86% 1011 mb
Low level cloud: 27%
Mid level cloud: 8%
High level cloud: 4%
Most Significant Cloud Type: low
30%
0.0 In
Sun 15
Jun
00:00

WNW
WNW

5 / 11 mph 52 / 50°F 94% 1012 mb
Low level cloud: 39%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: low
40%
0.0 In
06:00

WNW
WNW

5 / 11 mph 53 / 52°F 93% 1014 mb
Low level cloud: 80%
Mid level cloud: 26%
High level cloud: 0%
Most Significant Cloud Type: low
88%
0.0 In
12:00

WSW
WSW

12 / 25 mph 57 / 54°F 64% 1016 mb
Low level cloud: 0%
Mid level cloud: 21%
High level cloud: 0%
Most Significant Cloud Type: medium
21%
0.1 In
18:00

WSW
WSW

10 / 22 mph 50 / 46°F 73% 1018 mb
Low level cloud: 20%
Mid level cloud: 37%
High level cloud: 0%
Most Significant Cloud Type: low
33%
0.1 In
Mon 16
Jun
00:00

WSW
WSW

6 / 14 mph 49 / 46°F 77% 1022 mb
Low level cloud: 10%
Mid level cloud: 12%
High level cloud: 0%
Most Significant Cloud Type: low
14%
0.0 In
06:00

WSW
WSW

11 / 23 mph 51 / 46°F 69% 1022 mb
Low level cloud: 69%
Mid level cloud: 83%
High level cloud: 0%
Most Significant Cloud Type: low
97%
0.0 In
12:00

WSW
WSW

9 / 18 mph 62 / 62°F 73% 1024 mb
Low level cloud: 29%
Mid level cloud: 24%
High level cloud: 0%
Most Significant Cloud Type: low
37%
0.0 In
18:00

SSW
SSW

9 / 19 mph 53 / 50°F 72% 1024 mb
Low level cloud: 19%
Mid level cloud: 0%
High level cloud: 18%
Most Significant Cloud Type: low
21%
0.0 In
Tue 17
Jun
00:00

SW
SW

6 / 13 mph 54 / 53°F 96% 1025 mb
Low level cloud: 48%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
47%
0.0 In
06:00

W
W

3 / 7 mph 51 / 51°F 97% 1026 mb
Low level cloud: 40%
Mid level cloud: 0%
High level cloud: 100%
Most Significant Cloud Type: low
51%
0.0 In
12:00

SSW
SSW

5 / 10 mph 64 / 64°F 73% 1026 mb
Low level cloud: 75%
Mid level cloud: 2%
High level cloud: 0%
Most Significant Cloud Type: low
75%
0.0 In
18:00

SW
SW

4 / 9 mph 53 / 53°F 86% 1025 mb
Low level cloud: 18%
Mid level cloud: 52%
High level cloud: 32%
Most Significant Cloud Type: medium
100%
0.0 In
Wed 18
Jun
00:00

SW
SW

2 / 4 mph 53 / 54°F 98% 1026 mb
Low level cloud: 52%
Mid level cloud: 2%
High level cloud: 0%
Most Significant Cloud Type: low
52%
0.0 In
06:00

SW
SW

5 / 11 mph 55 / 54°F 93% 1025 mb
Low level cloud: 87%
Mid level cloud: 24%
High level cloud: 10%
Most Significant Cloud Type: low
96%
0.0 In
12:00

SSW
SSW

2 / 5 mph 63 / 63°F 70% 1023 mb
Low level cloud: 52%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
52%
0.0 In
18:00

ESE
ESE

2 / 4 mph 56 / 57°F 88% 1025 mb
Low level cloud: 37%
Mid level cloud: 17%
High level cloud: 6%
Most Significant Cloud Type: low
43%
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