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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
Thu 19
Feb		09:00

NW
NW

 20 / 36 mph 29 / 15°F 92% 995 mb
Low level cloud: 85%
Mid level cloud: 85%
High level cloud: 95%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

NW
NW

 19 / 32 mph 29 / 16°F 96% 995 mb
Low level cloud: 84%
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
15:00

NW
NW

 21 / 33 mph 29 / 16°F 96% 995 mb
Low level cloud: 80%
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
18:00

NW
NW

 23 / 34 mph 29 / 15°F 93% 996 mb
Low level cloud: 81%
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

NW
NW

 27 / 41 mph 29 / 14°F 89% 997 mb
Low level cloud: 83%
Mid level cloud: 57%
High level cloud: 90%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Fri 20
Feb		00:00

NW
NW

 26 / 54 mph 24 / 8°F 85% 998 mb
Low level cloud: 99%
Mid level cloud: 30%
High level cloud: 14%
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 / 51 mph 22 / 5°F 86% 999 mb
Low level cloud: 65%
Mid level cloud: 27%
High level cloud: 83%
Most Significant Cloud Type: low
84%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

WNW
WNW

 23 / 49 mph 21 / 4°F 84% 1001 mb
Low level cloud: 41%
Mid level cloud: 27%
High level cloud: 3%
Most Significant Cloud Type: low
50%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

W
W

 23 / 36 mph 24 / 9°F 83% 1003 mb
Low level cloud: 33%
Mid level cloud: 16%
High level cloud: 0%
Most Significant Cloud Type: low
38%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

W
W

 21 / 29 mph 28 / 14°F 82% 1003 mb
Low level cloud: 33%
Mid level cloud: 11%
High level cloud: 0%
Most Significant Cloud Type: low
37%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

W
W

 21 / 29 mph 30 / 16°F 82% 1003 mb
Low level cloud: 58%
Mid level cloud: 6%
High level cloud: 0%
Most Significant Cloud Type: low
60%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

W
W

 22 / 33 mph 28 / 14°F 79% 1005 mb
Low level cloud: 46%
Mid level cloud: 4%
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

W
W

 21 / 32 mph 25 / 11°F 82% 1006 mb
Low level cloud: 37%
Mid level cloud: 9%
High level cloud: 0%
Most Significant Cloud Type: low
39%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
The 7 day weather forecast summary for St. John's:

The next 7 day outlook for St. John's shows the average daytime maximum temperature will be around 0°C, with a high for the week of 7°C expected on the afternoon of Tuesday 24th. The mean minimum temperature will be -5°C, dipping to its lowest on the morning of Saturday 21st at -9°C. Expect the coming week to have mixed overhead conditions with some days dry and some seeing a significant amount of rain or snow. It looks like Tuesday 21st will have the most precipitation with an accumulation of around 14.0mm. On the whole winds are likely to be strong. Expect the strongest wind on Sunday morning, coming from a north easterly direction, and reaching around 38mph.

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