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St. John's Weather Forecast

Temperature, wind, rain and more for St. John's

Newfoundland, Canada

DayLocal TimeDirSpeed/
Gust		Temp/
Feels Like		HumidityPressureCloud AmountPrecip AmountWeather
Fri 20
Feb		00:00

WNW
WNW

 26 / 38 mph 29 / 14°F 85% 999 mb
Low level cloud: 95%
Mid level cloud: 45%
High level cloud: 18%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

WNW
WNW

 24 / 36 mph 26 / 11°F 85% 1000 mb
Low level cloud: 62%
Mid level cloud: 13%
High level cloud: 84%
Most Significant Cloud Type: low
76%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

WNW
WNW

 24 / 36 mph 25 / 10°F 82% 1001 mb
Low level cloud: 27%
Mid level cloud: 6%
High level cloud: 3%
Most Significant Cloud Type: low
29%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

W
W

 24 / 36 mph 25 / 10°F 82% 1002 mb
Low level cloud: 18%
Mid level cloud: 19%
High level cloud: 0%
Most Significant Cloud Type: low
24%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

W
W

 23 / 33 mph 27 / 13°F 82% 1003 mb
Low level cloud: 24%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: low
25%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

W
W

 22 / 31 mph 29 / 15°F 81% 1003 mb
Low level cloud: 45%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: low
46%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

W
W

 21 / 32 mph 28 / 14°F 78% 1004 mb
Low level cloud: 43%
Mid level cloud: 1%
High level cloud: 0%
Most Significant Cloud Type: low
43%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

W
W

 21 / 34 mph 24 / 9°F 80% 1005 mb
Low level cloud: 74%
Mid level cloud: 14%
High level cloud: 0%
Most Significant Cloud Type: low
79%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sat 21
Feb		00:00

W
W

 23 / 38 mph 18 / 1°F 76% 1007 mb
Low level cloud: 7%
Mid level cloud: 20%
High level cloud: 0%
Most Significant Cloud Type: low
13%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

W
W

 23 / 39 mph 16 / -1°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
06:00

W
W

 19 / 34 mph 15 / -2°F 73% 1007 mb
Low level cloud: 6%
Mid level cloud: 2%
High level cloud: 0%
Most Significant Cloud Type: low
6%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

W
W

 15 / 26 mph 15 / 0°F 75% 1007 mb
Low level cloud: 2%
Mid level cloud: 4%
High level cloud: 29%
Most Significant Cloud Type: medium
9%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

WSW
WSW

 13 / 16 mph 22 / 9°F 74% 1006 mb
Low level cloud: 19%
Mid level cloud: 98%
High level cloud: 32%
Most Significant Cloud Type: medium
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

SSW
SSW

 6 / 6 mph 27 / 20°F 75% 1003 mb
Low level cloud: 70%
Mid level cloud: 49%
High level cloud: 100%
Most Significant Cloud Type: low
98%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

E
E

 11 / 13 mph 25 / 15°F 87% 1002 mb
Low level cloud: 58%
Mid level cloud: 100%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

ENE
ENE

 21 / 25 mph 28 / 15°F 88% 1000 mb
Low level cloud: 100%
Mid level cloud: 100%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
The 7 day weather forecast summary for St. John's:

Over the next 7 days the St. John's forecast suggests the average daytime maximum temperature will be around 1°C, with a high for the week of 9°C expected on the morning of Friday 27th. The average minimum temperature will be -5°C, dipping to its lowest on the morning of Saturday 21st at -11°C. The week ahead will have mostly dry days although Sunday 22nd and Tuesday 24th are likely to see a significant amount of rain, sleet or snow. It looks like Sunday 21st will have the most precipitation with an accumulation of around 23.0mm. On the whole winds are likely to be strong. The strongest wind will be experienced on Sunday afternoon, coming from a northerly direction, and reaching around 40mph.

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