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Samana 14 Day Long Range Forecast

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

Dominican Republic

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

The forecast for Samana in the coming two weeks is predicting the average daytime maximum temperature will be around 29°C, with a high for the two weeks of 30°C expected on the morning of Friday 3rd. The average minimum temperature will be 23°C, dipping to its lowest on the morning of Saturday 4th at 22°C. Expect the coming 14 days to have some days seeing a little precipitation and some days with rain. The current forecast indicates Friday 3rd will have the most precipitation with an accumulation of around 40.0mm. On the whole winds are likely to be moderate.

DayLocal TimeDirSpeed/
Gust		Temp/
Feels Like		HumidityPressureCloud AmountPrecip AmountWeather
Fri 03
May		17:00

NE
NE

 9 / 15 mph 83 / 86°F 81% 1010 mb
Low level cloud: 4%
Mid level cloud: 46%
High level cloud: 87%
Most Significant Cloud Type: medium
62%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
20:00

NE
NE

 8 / 17 mph 74 / 78°F 94% 1011 mb
Low level cloud: 54%
Mid level cloud: 67%
High level cloud: 96%
Most Significant Cloud Type: low
88%
Expect 0.5 In of precipitation over the past 3 hours.
0.5 In
23:00

NE
NE

 4 / 5 mph 74 / 78°F 92% 1012 mb
Low level cloud: 19%
Mid level cloud: 27%
High level cloud: 79%
Most Significant Cloud Type: low
38%
Expect 0.6 In of precipitation over the past 3 hours.
0.6 In
Sat 04
May		02:00

NNE
NNE

 2 / 4 mph 73 / 77°F 89% 1011 mb
Low level cloud: 6%
Mid level cloud: 27%
High level cloud: 8%
Most Significant Cloud Type: medium
42%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
05:00

ENE
ENE

 2 / 3 mph 72 / 76°F 89% 1011 mb
Low level cloud: 29%
Mid level cloud: 9%
High level cloud: 0%
Most Significant Cloud Type: low
32%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
08:00

N
N

 2 / 2 mph 80 / 80°F 86% 1013 mb
Low level cloud: 19%
Mid level cloud: 10%
High level cloud: 0%
Most Significant Cloud Type: low
22%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
11:00

NE
NE

 4 / 4 mph 86 / 88°F 68% 1013 mb
Low level cloud: 14%
Mid level cloud: 11%
High level cloud: 0%
Most Significant Cloud Type: low
18%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
14:00

ENE
ENE

 5 / 6 mph 86 / 88°F 68% 1012 mb
Low level cloud: 19%
Mid level cloud: 15%
High level cloud: 0%
Most Significant Cloud Type: low
24%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
17:00

ENE
ENE

 5 / 6 mph 85 / 87°F 71% 1011 mb
Low level cloud: 4%
Mid level cloud: 17%
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

ENE
ENE

 6 / 9 mph 76 / 80°F 87% 1013 mb
Low level cloud: 24%
Mid level cloud: 39%
High level cloud: 25%
Most Significant Cloud Type: low
40%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
23:00

ENE
ENE

 6 / 9 mph 75 / 79°F 91% 1014 mb
Low level cloud: 39%
Mid level cloud: 28%
High level cloud: 7%
Most Significant Cloud Type: low
49%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sun 05
May		02:00

ENE
ENE

 4 / 7 mph 75 / 79°F 91% 1013 mb
Low level cloud: 58%
Mid level cloud: 28%
High level cloud: 0%
Most Significant Cloud Type: low
68%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
05:00

ENE
ENE

 4 / 8 mph 74 / 79°F 92% 1013 mb
Low level cloud: 75%
Mid level cloud: 29%
High level cloud: 12%
Most Significant Cloud Type: low
86%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
08:00

E
E

 6 / 8 mph 80 / 83°F 88% 1015 mb
Low level cloud: 66%
Mid level cloud: 45%
High level cloud: 5%
Most Significant Cloud Type: low
81%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
11:00

E
E

 7 / 10 mph 84 / 87°F 84% 1015 mb
Low level cloud: 45%
Mid level cloud: 28%
High level cloud: 7%
Most Significant Cloud Type: low
55%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
14:00

E
E

 8 / 11 mph 85 / 89°F 78% 1014 mb
Low level cloud: 24%
Mid level cloud: 46%
High level cloud: 39%
Most Significant Cloud Type: low
45%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
17:00

ENE
ENE

 8 / 11 mph 81 / 83°F 85% 1013 mb
Low level cloud: 42%
Mid level cloud: 44%
High level cloud: 77%
Most Significant Cloud Type: low
66%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
20:00

E
E

 5 / 10 mph 75 / 80°F 94% 1015 mb
Low level cloud: 34%
Mid level cloud: 45%
High level cloud: 100%
Most Significant Cloud Type: low
61%
Expect 0.3 In of precipitation over the past 3 hours.
0.3 In
23:00

E
E

 4 / 5 mph 75 / 79°F 94% 1016 mb
Low level cloud: 47%
Mid level cloud: 57%
High level cloud: 87%
Most Significant Cloud Type: low
77%
Expect 0.2 In of precipitation over the past 3 hours.
0.2 In
Mon 06
May		02:00

NE
NE

 3 / 4 mph 75 / 80°F 93% 1014 mb
Low level cloud: 44%
Mid level cloud: 52%
High level cloud: 100%
Most Significant Cloud Type: low
73%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
05:00

NE
NE

 5 / 8 mph 74 / 78°F 92% 1013 mb
Low level cloud: 78%
Mid level cloud: 32%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
08:00

ENE
ENE

 6 / 10 mph 79 / 80°F 90% 1014 mb
Low level cloud: 38%
Mid level cloud: 27%
High level cloud: 10%
Most Significant Cloud Type: low
48%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
11:00

E
E

 6 / 10 mph 83 / 86°F 89% 1015 mb
Low level cloud: 34%
Mid level cloud: 36%
High level cloud: 6%
Most Significant Cloud Type: low
47%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
14:00

ENE
ENE

 7 / 13 mph 84 / 89°F 83% 1013 mb
Low level cloud: 30%
Mid level cloud: 45%
High level cloud: 9%
Most Significant Cloud Type: low
47%
Expect 0.2 In of precipitation over the past 3 hours.
0.2 In
17:00

ENE
ENE

 8 / 11 mph 84 / 89°F 88% 1012 mb
Low level cloud: 28%
Mid level cloud: 44%
High level cloud: 71%
Most Significant Cloud Type: low
51%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
20:00

ENE
ENE

 8 / 16 mph 79 / 86°F 94% 1013 mb
Low level cloud: 41%
Mid level cloud: 49%
High level cloud: 100%
Most Significant Cloud Type: low
70%
Expect 0.3 In of precipitation over the past 3 hours.
0.3 In
23:00

ESE
ESE

 5 / 9 mph 77 / 83°F 96% 1014 mb
Low level cloud: 72%
Mid level cloud: 47%
High level cloud: 99%
Most Significant Cloud Type: low
100%
Expect 0.4 In of precipitation over the past 3 hours.
0.4 In
Tue 07
May		02:00

SE
SE

 4 / 4 mph 74 / 79°F 96% 1013 mb
Low level cloud: 71%
Mid level cloud: 50%
High level cloud: 41%
Most Significant Cloud Type: low
93%
Expect 0.3 In of precipitation over the past 3 hours.
0.3 In
05:00

ESE
ESE

 4 / 6 mph 73 / 78°F 94% 1012 mb
Low level cloud: 66%
Mid level cloud: 45%
High level cloud: 80%
Most Significant Cloud Type: low
91%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
08:00

ESE
ESE

 4 / 6 mph 78 / 78°F 93% 1013 mb
Low level cloud: 40%
Mid level cloud: 53%
High level cloud: 47%
Most Significant Cloud Type: low
63%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
11:00

E
E

 3 / 4 mph 80 / 81°F 89% 1014 mb
Low level cloud: 39%
Mid level cloud: 43%
High level cloud: 31%
Most Significant Cloud Type: low
57%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
14:00

N
N

 3 / 4 mph 80 / 84°F 89% 1013 mb
Low level cloud: 14%
Mid level cloud: 45%
High level cloud: 18%
Most Significant Cloud Type: medium
84%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
17:00

ENE
ENE

 6 / 8 mph 82 / 83°F 86% 1011 mb
Low level cloud: 45%
Mid level cloud: 46%
High level cloud: 0%
Most Significant Cloud Type: low
61%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
20:00

ENE
ENE

 7 / 8 mph 76 / 81°F 90% 1013 mb
Low level cloud: 51%
Mid level cloud: 33%
High level cloud: 0%
Most Significant Cloud Type: low
62%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
23:00

E
E

 5 / 8 mph 75 / 79°F 90% 1013 mb
Low level cloud: 71%
Mid level cloud: 24%
High level cloud: 3%
Most Significant Cloud Type: low
79%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Wed 08
May		02:00

E
E

 4 / 6 mph 75 / 79°F 88% 1012 mb
Low level cloud: 47%
Mid level cloud: 44%
High level cloud: 0%
Most Significant Cloud Type: low
61%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
05:00

E
E

 4 / 6 mph 75 / 79°F 89% 1012 mb
Low level cloud: 44%
Mid level cloud: 45%
High level cloud: 1%
Most Significant Cloud Type: low
60%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
08:00

E
E

 4 / 5 mph 82 / 83°F 82% 1013 mb
Low level cloud: 52%
Mid level cloud: 20%
High level cloud: 5%
Most Significant Cloud Type: low
59%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
11:00

E
E

 6 / 7 mph 86 / 88°F 72% 1013 mb
Low level cloud: 47%
Mid level cloud: 18%
High level cloud: 15%
Most Significant Cloud Type: low
55%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
14:00

E
E

 8 / 10 mph 85 / 88°F 76% 1012 mb
Low level cloud: 35%
Mid level cloud: 18%
High level cloud: 81%
Most Significant Cloud Type: low
50%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
17:00

E
E

 9 / 12 mph 81 / 85°F 84% 1011 mb
Low level cloud: 47%
Mid level cloud: 31%
High level cloud: 94%
Most Significant Cloud Type: low
68%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
20:00

E
E

 9 / 13 mph 76 / 80°F 89% 1013 mb
Low level cloud: 25%
Mid level cloud: 23%
High level cloud: 37%
Most Significant Cloud Type: low
37%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
23:00

E
E

 8 / 15 mph 75 / 79°F 92% 1014 mb
Low level cloud: 14%
Mid level cloud: 27%
High level cloud: 32%
Most Significant Cloud Type: low
26%
Expect 0.2 In of precipitation over the past 3 hours.
0.2 In
Thu 09
May		02:00

ESE
ESE

 4 / 9 mph 75 / 79°F 92% 1014 mb
Low level cloud: 37%
Mid level cloud: 33%
High level cloud: 11%
Most Significant Cloud Type: low
49%
Expect 0.2 In of precipitation over the past 3 hours.
0.2 In
05:00

ESE
ESE

 3 / 4 mph 74 / 78°F 91% 1013 mb
Low level cloud: 31%
Mid level cloud: 26%
High level cloud: 0%
Most Significant Cloud Type: low
40%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
08:00

E
E

 3 / 4 mph 79 / 79°F 89% 1015 mb
Low level cloud: 51%
Mid level cloud: 21%
High level cloud: 0%
Most Significant Cloud Type: low
58%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
11:00

E
E

 5 / 6 mph 83 / 85°F 85% 1015 mb
Low level cloud: 63%
Mid level cloud: 21%
High level cloud: 0%
Most Significant Cloud Type: low
69%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
14:00

ENE
ENE

 6 / 8 mph 85 / 89°F 82% 1014 mb
Low level cloud: 41%
Mid level cloud: 20%
High level cloud: 0%
Most Significant Cloud Type: low
47%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
17:00

ENE
ENE

 8 / 10 mph 84 / 89°F 88% 1013 mb
Low level cloud: 62%
Mid level cloud: 22%
High level cloud: 0%
Most Significant Cloud Type: low
69%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
20:00

ENE
ENE

 8 / 12 mph 78 / 85°F 92% 1015 mb
Low level cloud: 60%
Mid level cloud: 28%
High level cloud: 0%
Most Significant Cloud Type: low
69%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
23:00

E
E

 7 / 11 mph 76 / 81°F 93% 1016 mb
Low level cloud: 53%
Mid level cloud: 25%
High level cloud: 0%
Most Significant Cloud Type: low
62%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
DayLocal TimeDirSpeed/
Gust		Temp/
Feels Like		HumidityPressureCloud AmountPrecip AmountWeather
Fri 10
May		02:00

E
E

 7 / 15 mph 77 / 81°F 90% 1014 mb
Low level cloud: 69%
Mid level cloud: 20%
High level cloud: 0%
Most Significant Cloud Type: low
75%
0.0 In
08:00

E
E

 6 / 12 mph 73 / 77°F 90% 1015 mb
Low level cloud: 52%
Mid level cloud: 22%
High level cloud: 0%
Most Significant Cloud Type: low
59%
0.0 In
14:00

E
E

 7 / 16 mph 82 / 89°F 82% 1013 mb
Low level cloud: 57%
Mid level cloud: 16%
High level cloud: 0%
Most Significant Cloud Type: low
62%
0.0 In
20:00

E
E

 8 / 17 mph 79 / 85°F 92% 1014 mb
Low level cloud: 37%
Mid level cloud: 27%
High level cloud: 0%
Most Significant Cloud Type: low
46%
0.0 In
Sat 11
May		02:00

ENE
ENE

 5 / 11 mph 75 / 79°F 87% 1014 mb
Low level cloud: 57%
Mid level cloud: 41%
High level cloud: 0%
Most Significant Cloud Type: low
71%
0.0 In
08:00

ESE
ESE

 6 / 12 mph 78 / 83°F 91% 1014 mb
Low level cloud: 17%
Mid level cloud: 24%
High level cloud: 0%
Most Significant Cloud Type: low
24%
0.0 In
14:00

E
E

 8 / 16 mph 85 / 93°F 72% 1013 mb
Low level cloud: 28%
Mid level cloud: 13%
High level cloud: 1%
Most Significant Cloud Type: low
32%
0.0 In
20:00

ENE
ENE

 8 / 16 mph 79 / 85°F 88% 1014 mb
Low level cloud: 69%
Mid level cloud: 26%
High level cloud: 0%
Most Significant Cloud Type: low
78%
0.0 In
Sun 12
May		02:00

ESE
ESE

 5 / 10 mph 72 / 77°F 93% 1013 mb
Low level cloud: 60%
Mid level cloud: 31%
High level cloud: 0%
Most Significant Cloud Type: low
70%
0.2 In
08:00

ESE
ESE

 5 / 10 mph 76 / 80°F 89% 1015 mb
Low level cloud: 60%
Mid level cloud: 9%
High level cloud: 0%
Most Significant Cloud Type: low
63%
0.1 In
14:00

ESE
ESE

 8 / 17 mph 86 / 95°F 72% 1013 mb
Low level cloud: 51%
Mid level cloud: 19%
High level cloud: 0%
Most Significant Cloud Type: low
57%
0.1 In
20:00

ESE
ESE

 5 / 11 mph 74 / 78°F 91% 1014 mb
Low level cloud: 50%
Mid level cloud: 17%
High level cloud: 0%
Most Significant Cloud Type: low
56%
0.1 In
Mon 13
May		02:00

SE
SE

 5 / 11 mph 74 / 78°F 93% 1013 mb
Low level cloud: 32%
Mid level cloud: 14%
High level cloud: 1%
Most Significant Cloud Type: low
36%
0.1 In
08:00

SE
SE

 4 / 9 mph 77 / 82°F 90% 1015 mb
Low level cloud: 30%
Mid level cloud: 6%
High level cloud: 0%
Most Significant Cloud Type: low
31%
0.0 In
14:00

ESE
ESE

 8 / 17 mph 86 / 97°F 73% 1014 mb
Low level cloud: 14%
Mid level cloud: 9%
High level cloud: 0%
Most Significant Cloud Type: low
17%
0.1 In
20:00

S
S

 6 / 12 mph 76 / 81°F 87% 1015 mb
Low level cloud: 2%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: low
4%
0.0 In
Tue 14
May		02:00

SE
SE

 4 / 8 mph 74 / 79°F 93% 1015 mb
Low level cloud: 20%
Mid level cloud: 7%
High level cloud: 3%
Most Significant Cloud Type: low
23%
0.1 In
08:00

SE
SE

 5 / 11 mph 79 / 85°F 84% 1017 mb
Low level cloud: 35%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: low
36%
0.0 In
14:00

E
E

 9 / 19 mph 88 / 98°F 69% 1015 mb
Low level cloud: 13%
Mid level cloud: 8%
High level cloud: 0%
Most Significant Cloud Type: low
16%
0.0 In
20:00

E
E

 7 / 14 mph 76 / 81°F 91% 1016 mb
Low level cloud: 17%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: low
18%
0.0 In
Wed 15
May		02:00

E
E

 6 / 12 mph 78 / 83°F 93% 1014 mb
Low level cloud: 36%
Mid level cloud: 6%
High level cloud: 2%
Most Significant Cloud Type: low
38%
0.1 In
08:00

ESE
ESE

 4 / 9 mph 80 / 86°F 87% 1017 mb
Low level cloud: 20%
Mid level cloud: 10%
High level cloud: 0%
Most Significant Cloud Type: low
23%
0.0 In
14:00

E
E

 8 / 16 mph 84 / 93°F 79% 1014 mb
Low level cloud: 35%
Mid level cloud: 16%
High level cloud: 99%
Most Significant Cloud Type: low
52%
0.2 In
20:00

E
E

 9 / 19 mph 77 / 83°F 92% 1016 mb
Low level cloud: 30%
Mid level cloud: 5%
High level cloud: 9%
Most Significant Cloud Type: low
32%
0.1 In
Thu 16
May		02:00

E
E

 6 / 12 mph 77 / 82°F 92% 1014 mb
Low level cloud: 12%
Mid level cloud: 31%
High level cloud: 21%
Most Significant Cloud Type: low
25%
0.3 In
08:00

E
E

 10 / 20 mph 78 / 83°F 88% 1016 mb
Low level cloud: 63%
Mid level cloud: 3%
High level cloud: 4%
Most Significant Cloud Type: low
64%
0.1 In
14:00

E
E

 10 / 21 mph 82 / 92°F 87% 1015 mb
Low level cloud: 9%
Mid level cloud: 45%
High level cloud: 32%
Most Significant Cloud Type: medium
72%
0.7 In
20:00

E
E

 9 / 19 mph 76 / 81°F 90% 1015 mb
Low level cloud: 55%
Mid level cloud: 3%
High level cloud: 7%
Most Significant Cloud Type: low
57%
0.0 In
Fri 17
May		02:00

E
E

 6 / 12 mph 76 / 81°F 92% 1015 mb
Low level cloud: 45%
Mid level cloud: 25%
High level cloud: 61%
Most Significant Cloud Type: low
61%
0.3 In
08:00

ESE
ESE

 8 / 17 mph 78 / 83°F 84% 1015 mb
Low level cloud: 36%
Mid level cloud: 16%
High level cloud: 0%
Most Significant Cloud Type: low
41%
0.0 In
14:00

E
E

 10 / 21 mph 81 / 89°F 82% 1016 mb
Low level cloud: 35%
Mid level cloud: 18%
High level cloud: 34%
Most Significant Cloud Type: low
44%
0.2 In
20:00

E
E

 9 / 19 mph 76 / 81°F 86% 1014 mb
Low level cloud: 28%
Mid level cloud: 18%
High level cloud: 6%
Most Significant Cloud Type: low
34%
0.2 In
Sat 18
May		02:00

E
E

 8 / 17 mph 77 / 81°F 90% 1015 mb
Low level cloud: 52%
Mid level cloud: 9%
High level cloud: 45%
Most Significant Cloud Type: low
60%
0.1 In
08:00

SE
SE

 6 / 13 mph 76 / 80°F 88% 1015 mb
Low level cloud: 64%
Mid level cloud: 8%
High level cloud: 49%
Most Significant Cloud Type: low
72%
0.0 In
14:00

ENE
ENE

 9 / 19 mph 84 / 89°F 65% 1015 mb
Low level cloud: 1%
Mid level cloud: 6%
High level cloud: 0%
Most Significant Cloud Type: medium
8%
0.0 In
20:00

ESE
ESE

 5 / 10 mph 79 / 85°F 89% 1015 mb
Low level cloud: 52%
Mid level cloud: 8%
High level cloud: 33%
Most Significant Cloud Type: low
58%
0.0 In

Other Locations Near to Samana

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