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Opatija 14 Day Long Range Forecast

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

Croatia

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

Reviewing the forecast for Opatija Over the next 14 days and the average daytime maximum temperature will be around 10°C, with a high for the two weeks of 13°C expected on the afternoon of Sunday 22nd. The average minimum temperature will be 3°C, dipping to its lowest on the morning of Monday 23rd at 0°C. The coming 14 days will have some days seeing a little precipitation and some days with rain. The current forecast indicates Thursday 19th will have the most precipitation with an accumulation of around 29.0mm. On the whole winds are likely to be light.

DayLocal TimeDirSpeed/
Gust		Temp/
Feels Like		HumidityPressureCloud AmountPrecip AmountWeather
Sat 14
Feb		19:00

NNE
NNE

 6 / 7 mph 49 / 47°F 87% 999 mb
Low level cloud: 79%
Mid level cloud: 72%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

NNE
NNE

 8 / 9 mph 48 / 45°F 87% 1001 mb
Low level cloud: 61%
Mid level cloud: 80%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sun 15
Feb		01:00

NNE
NNE

 9 / 12 mph 45 / 40°F 87% 1001 mb
Low level cloud: 19%
Mid level cloud: 46%
High level cloud: 3%
Most Significant Cloud Type: low
35%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

NNE
NNE

 11 / 15 mph 46 / 41°F 84% 1001 mb
Low level cloud: 32%
Mid level cloud: 44%
High level cloud: 100%
Most Significant Cloud Type: low
59%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

NE
NE

 8 / 9 mph 46 / 42°F 78% 1004 mb
Low level cloud: 0%
Mid level cloud: 44%
High level cloud: 33%
Most Significant Cloud Type: medium
45%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

NE
NE

 5 / 6 mph 49 / 47°F 61% 1006 mb
Low level cloud: 0%
Mid level cloud: 46%
High level cloud: 5%
Most Significant Cloud Type: medium
45%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

ENE
ENE

 6 / 7 mph 51 / 48°F 56% 1008 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
16:00

E
E

 6 / 7 mph 49 / 46°F 61% 1009 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 6%
Most Significant Cloud Type: high
6%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

ENE
ENE

 6 / 6 mph 44 / 40°F 74% 1011 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
22:00

NE
NE

 5 / 6 mph 42 / 39°F 76% 1011 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
Mon 16
Feb		01:00

NNE
NNE

 4 / 7 mph 36 / 32°F 73% 1010 mb
Low level cloud: 0%
Mid level cloud: 8%
High level cloud: 96%
Most Significant Cloud Type: medium
12%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

NNE
NNE

 1 / 2 mph 34 / 34°F 68% 1007 mb
Low level cloud: 0%
Mid level cloud: 54%
High level cloud: 74%
Most Significant Cloud Type: medium
57%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

ESE
ESE

 2 / 2 mph 38 / 38°F 73% 1007 mb
Low level cloud: 81%
Mid level cloud: 97%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

E
E

 2 / 2 mph 43 / 43°F 75% 1006 mb
Low level cloud: 97%
Mid level cloud: 99%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

ESE
ESE

 5 / 5 mph 46 / 43°F 95% 1004 mb
Low level cloud: 98%
Mid level cloud: 71%
High level cloud: 15%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

SE
SE

 8 / 9 mph 48 / 44°F 96% 1002 mb
Low level cloud: 98%
Mid level cloud: 98%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
19:00

E
E

 5 / 5 mph 47 / 46°F 97% 1002 mb
Low level cloud: 99%
Mid level cloud: 61%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.3 In of precipitation over the past 3 hours.
0.3 In
22:00

NNE
NNE

 5 / 6 mph 46 / 44°F 95% 1002 mb
Low level cloud: 85%
Mid level cloud: 63%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.3 In of precipitation over the past 3 hours.
0.3 In
Tue 17
Feb		01:00

N
N

 7 / 8 mph 43 / 38°F 89% 1002 mb
Low level cloud: 14%
Mid level cloud: 44%
High level cloud: 100%
Most Significant Cloud Type: medium
86%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
04:00

N
N

 8 / 15 mph 37 / 32°F 85% 1002 mb
Low level cloud: 0%
Mid level cloud: 27%
High level cloud: 9%
Most Significant Cloud Type: medium
26%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

NNE
NNE

 5 / 11 mph 35 / 30°F 85% 1005 mb
Low level cloud: 0%
Mid level cloud: 23%
High level cloud: 0%
Most Significant Cloud Type: medium
22%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

NNW
NNW

 2 / 2 mph 47 / 47°F 69% 1006 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
13:00

SW
SW

 3 / 4 mph 50 / 49°F 65% 1006 mb
Low level cloud: 0%
Mid level cloud: 6%
High level cloud: 0%
Most Significant Cloud Type: medium
5%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

SW
SW

 2 / 2 mph 50 / 50°F 71% 1007 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

NNE
NNE

 2 / 3 mph 44 / 44°F 83% 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
22:00

NE
NE

 3 / 6 mph 38 / 36°F 83% 1012 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 9%
Most Significant Cloud Type: high
9%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Wed 18
Feb		01:00

NE
NE

 4 / 8 mph 36 / 33°F 83% 1013 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
04:00

NE
NE

 2 / 5 mph 35 / 34°F 81% 1013 mb
Low level cloud: 0%
Mid level cloud: 20%
High level cloud: 7%
Most Significant Cloud Type: medium
20%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

ENE
ENE

 3 / 7 mph 35 / 32°F 83% 1013 mb
Low level cloud: 11%
Mid level cloud: 10%
High level cloud: 6%
Most Significant Cloud Type: low
15%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

SE
SE

 3 / 4 mph 50 / 49°F 77% 1014 mb
Low level cloud: 16%
Mid level cloud: 12%
High level cloud: 1%
Most Significant Cloud Type: low
20%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

S
S

 7 / 8 mph 50 / 47°F 83% 1013 mb
Low level cloud: 89%
Mid level cloud: 45%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

SSW
SSW

 9 / 11 mph 48 / 44°F 85% 1012 mb
Low level cloud: 23%
Mid level cloud: 46%
High level cloud: 3%
Most Significant Cloud Type: low
39%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

S
S

 5 / 6 mph 46 / 44°F 84% 1012 mb
Low level cloud: 43%
Mid level cloud: 72%
High level cloud: 98%
Most Significant Cloud Type: low
80%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

SSW
SSW

 8 / 9 mph 47 / 43°F 89% 1012 mb
Low level cloud: 96%
Mid level cloud: 76%
High level cloud: 36%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Thu 19
Feb		01:00

SW
SW

 8 / 10 mph 47 / 43°F 93% 1011 mb
Low level cloud: 99%
Mid level cloud: 97%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
04:00

SSW
SSW

 4 / 7 mph 45 / 43°F 95% 1009 mb
Low level cloud: 98%
Mid level cloud: 93%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

S
S

 16 / 30 mph 45 / 38°F 95% 1007 mb
Low level cloud: 80%
Mid level cloud: 94%
High level cloud: 96%
Most Significant Cloud Type: low
100%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
10:00

S
S

 16 / 21 mph 49 / 43°F 95% 1006 mb
Low level cloud: 80%
Mid level cloud: 89%
High level cloud: 85%
Most Significant Cloud Type: low
100%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
13:00

SSE
SSE

 19 / 25 mph 53 / 47°F 93% 1004 mb
Low level cloud: 45%
Mid level cloud: 71%
High level cloud: 0%
Most Significant Cloud Type: low
70%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
16:00

SSE
SSE

 21 / 28 mph 53 / 48°F 93% 1001 mb
Low level cloud: 84%
Mid level cloud: 100%
High level cloud: 66%
Most Significant Cloud Type: low
100%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
19:00

S
S

 11 / 14 mph 51 / 47°F 97% 1000 mb
Low level cloud: 96%
Mid level cloud: 91%
High level cloud: 57%
Most Significant Cloud Type: low
100%
Expect 0.6 In of precipitation over the past 3 hours.
0.6 In
22:00

SSW
SSW

 2 / 3 mph 48 / 49°F 94% 1002 mb
Low level cloud: 70%
Mid level cloud: 44%
High level cloud: 95%
Most Significant Cloud Type: low
96%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
Fri 20
Feb		01:00

E
E

 3 / 6 mph 44 / 42°F 95% 1004 mb
Low level cloud: 60%
Mid level cloud: 94%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
04:00

ENE
ENE

 5 / 7 mph 42 / 38°F 87% 1010 mb
Low level cloud: 18%
Mid level cloud: 59%
High level cloud: 55%
Most Significant Cloud Type: medium
100%
Expect 0.2 In of precipitation over the past 3 hours.
0.2 In
07:00

ENE
ENE

 7 / 9 mph 41 / 36°F 81% 1014 mb
Low level cloud: 6%
Mid level cloud: 88%
High level cloud: 46%
Most Significant Cloud Type: medium
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

ENE
ENE

 11 / 12 mph 42 / 35°F 63% 1020 mb
Low level cloud: 0%
Mid level cloud: 45%
High level cloud: 100%
Most Significant Cloud Type: medium
49%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

ENE
ENE

 14 / 16 mph 43 / 35°F 51% 1023 mb
Low level cloud: 0%
Mid level cloud: 41%
High level cloud: 73%
Most Significant Cloud Type: medium
43%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

ENE
ENE

 13 / 15 mph 41 / 34°F 56% 1025 mb
Low level cloud: 0%
Mid level cloud: 1%
High level cloud: 8%
Most Significant Cloud Type: high
7%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

ENE
ENE

 15 / 17 mph 40 / 32°F 64% 1028 mb
Low level cloud: 0%
Mid level cloud: 6%
High level cloud: 0%
Most Significant Cloud Type: medium
5%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

NE
NE

 9 / 10 mph 39 / 33°F 57% 1031 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
Sat 21
Feb		01:00

SSW
SSW

 12 / 23 mph 51 / 47°F 93% 1016 mb
Low level cloud: 73%
Mid level cloud: 43%
High level cloud: 11%
Most Significant Cloud Type: low
89%
0.0 In
07:00

NNE
NNE

 3 / 6 mph 30 / 27°F 63% 1033 mb
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 100%
Most Significant Cloud Type: medium
6%
0.0 In
13:00

ESE
ESE

 2 / 5 mph 51 / 52°F 66% 1020 mb
Low level cloud: 9%
Mid level cloud: 29%
High level cloud: 11%
Most Significant Cloud Type: medium
55%
0.0 In
19:00

SSE
SSE

 6 / 12 mph 50 / 47°F 91% 1009 mb
Low level cloud: 67%
Mid level cloud: 4%
High level cloud: 41%
Most Significant Cloud Type: low
73%
0.0 In
Sun 22
Feb		01:00

NNE
NNE

 2 / 4 mph 39 / 38°F 97% 1020 mb
Low level cloud: 97%
Mid level cloud: 43%
High level cloud: 95%
Most Significant Cloud Type: low
100%
0.0 In
07:00

NNW
NNW

 2 / 4 mph 35 / 35°F 50% 1029 mb
Low level cloud: 0%
Mid level cloud: 6%
High level cloud: 79%
Most Significant Cloud Type: medium
9%
0.0 In
13:00

SSW
SSW

 5 / 10 mph 48 / 46°F 50% 1029 mb
Low level cloud: 1%
Mid level cloud: 43%
High level cloud: 11%
Most Significant Cloud Type: medium
45%
0.0 In
19:00

W
W

 2 / 4 mph 47 / 47°F 89% 1021 mb
Low level cloud: 94%
Mid level cloud: 66%
High level cloud: 0%
Most Significant Cloud Type: low
100%
0.0 In
Mon 23
Feb		01:00

N
N

 1 / 2 mph 34 / 34°F 68% 1028 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 96%
Most Significant Cloud Type: high
96%
0.0 In
07:00

NE
NE

 1 / 3 mph 39 / 39°F 87% 1019 mb
Low level cloud: 10%
Mid level cloud: 3%
High level cloud: 100%
Most Significant Cloud Type: medium
34%
0.0 In
13:00

SW
SW

 1 / 3 mph 53 / 53°F 67% 1024 mb
Low level cloud: 87%
Mid level cloud: 3%
High level cloud: 17%
Most Significant Cloud Type: low
89%
0.0 In
19:00

NNE
NNE

 3 / 6 mph 45 / 45°F 83% 1022 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 15%
Most Significant Cloud Type: medium
3%
0.0 In
Tue 24
Feb		01:00

NNE
NNE

 3 / 6 mph 38 / 36°F 85% 1026 mb
Low level cloud: 26%
Mid level cloud: 0%
High level cloud: 100%
Most Significant Cloud Type: low
37%
0.0 In
07:00

NE
NE

 6 / 12 mph 33 / 28°F 78% 1027 mb
Low level cloud: 0%
Mid level cloud: 9%
High level cloud: 6%
Most Significant Cloud Type: medium
8%
0.0 In
13:00

S
S

 3 / 6 mph 57 / 58°F 64% 1027 mb
Low level cloud: 0%
Mid level cloud: 8%
High level cloud: 16%
Most Significant Cloud Type: medium
8%
0.0 In
19:00

NNE
NNE

 4 / 7 mph 42 / 40°F 76% 1028 mb
Low level cloud: 0%
Mid level cloud: 7%
High level cloud: 0%
Most Significant Cloud Type: medium
6%
0.0 In
Wed 25
Feb		01:00

N
N

 2 / 5 mph 43 / 42°F 87% 1030 mb
Low level cloud: 6%
Mid level cloud: 11%
High level cloud: 9%
Most Significant Cloud Type: low
10%
0.0 In
07:00

NNE
NNE

 3 / 7 mph 37 / 34°F 71% 1028 mb
Low level cloud: 0%
Mid level cloud: 10%
High level cloud: 3%
Most Significant Cloud Type: medium
9%
0.0 In
13:00

S
S

 4 / 8 mph 59 / 60°F 66% 1028 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
19:00

NNW
NNW

 1 / 2 mph 48 / 48°F 77% 1026 mb
Low level cloud: 0%
Mid level cloud: 12%
High level cloud: 80%
Most Significant Cloud Type: medium
15%
0.0 In
Thu 26
Feb		01:00

S
S

 1 / 2 mph 45 / 45°F 89% 1025 mb
Low level cloud: 77%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: low
78%
0.0 In
07:00

SSE
SSE

 9 / 17 mph 43 / 38°F 94% 1017 mb
Low level cloud: 96%
Mid level cloud: 83%
High level cloud: 100%
Most Significant Cloud Type: low
100%
0.0 In
13:00

SSW
SSW

 7 / 15 mph 55 / 54°F 87% 1022 mb
Low level cloud: 86%
Mid level cloud: 68%
High level cloud: 0%
Most Significant Cloud Type: low
100%
0.0 In
19:00

SE
SE

 12 / 26 mph 48 / 43°F 95% 1002 mb
Low level cloud: 99%
Mid level cloud: 100%
High level cloud: 61%
Most Significant Cloud Type: low
100%
1.5 In
Fri 27
Feb		01:00

NE
NE

 4 / 9 mph 49 / 47°F 91% 1023 mb
Low level cloud: 80%
Mid level cloud: 63%
High level cloud: 10%
Most Significant Cloud Type: low
100%
0.1 In
07:00

NE
NE

 7 / 14 mph 39 / 35°F 78% 1005 mb
Low level cloud: 22%
Mid level cloud: 45%
High level cloud: 29%
Most Significant Cloud Type: low
40%
1.1 In
13:00

ENE
ENE

 7 / 15 mph 55 / 53°F 58% 1026 mb
Low level cloud: 0%
Mid level cloud: 19%
High level cloud: 9%
Most Significant Cloud Type: medium
19%
0.1 In
19:00

NNE
NNE

 5 / 10 mph 45 / 42°F 83% 1015 mb
Low level cloud: 3%
Mid level cloud: 23%
High level cloud: 88%
Most Significant Cloud Type: medium
35%
0.0 In
Sat 28
Feb		01:00

N
N

 2 / 4 mph 43 / 44°F 78% 1025 mb
Low level cloud: 0%
Mid level cloud: 6%
High level cloud: 5%
Most Significant Cloud Type: medium
6%
0.0 In
07:00

NE
NE

 5 / 11 mph 35 / 30°F 83% 1024 mb
Low level cloud: 0%
Mid level cloud: 12%
High level cloud: 0%
Most Significant Cloud Type: medium
12%
0.0 In
13:00

S
S

 4 / 9 mph 58 / 58°F 71% 1022 mb
Low level cloud: 56%
Mid level cloud: 26%
High level cloud: 88%
Most Significant Cloud Type: low
75%
0.0 In
19:00

NNE
NNE

 5 / 10 mph 40 / 37°F 84% 1025 mb
Low level cloud: 0%
Mid level cloud: 86%
High level cloud: 32%
Most Significant Cloud Type: medium
87%
0.0 In
Sun 01
Mar		01:00

SE
SE

 2 / 4 mph 49 / 49°F 90% 1021 mb
Low level cloud: 57%
Mid level cloud: 18%
High level cloud: 4%
Most Significant Cloud Type: low
63%
0.0 In
07:00

NNE
NNE

 6 / 13 mph 34 / 28°F 75% 1025 mb
Low level cloud: 0%
Mid level cloud: 6%
High level cloud: 0%
Most Significant Cloud Type: medium
5%
0.0 In
13:00

S
S

 1 / 1 mph 56 / 56°F 88% 1019 mb
Low level cloud: 90%
Mid level cloud: 74%
High level cloud: 100%
Most Significant Cloud Type: low
100%
0.0 In
19:00

NNE
NNE

 4 / 9 mph 41 / 39°F 84% 1025 mb
Low level cloud: 0%
Mid level cloud: 6%
High level cloud: 13%
Most Significant Cloud Type: medium
6%
0.0 In

Other Locations Near to Opatija

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