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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
Wed 18
Feb		09:00

N
N

 36 / 65 mph 30 / 14°F 97% 985 mb
Low level cloud: 94%
Mid level cloud: 53%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.3 In of precipitation over the past 3 hours.
0.3 In
12:00

NNW
NNW

 35 / 65 mph 30 / 13°F 97% 984 mb
Low level cloud: 93%
Mid level cloud: 93%
High level cloud: 97%
Most Significant Cloud Type: low
100%
Expect 0.2 In of precipitation over the past 3 hours.
0.2 In
15:00

NW
NW

 33 / 63 mph 29 / 13°F 97% 983 mb
Low level cloud: 96%
Mid level cloud: 48%
High level cloud: 20%
Most Significant Cloud Type: low
100%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
18:00

NW
NW

 31 / 57 mph 30 / 14°F 97% 985 mb
Low level cloud: 97%
Mid level cloud: 84%
High level cloud: 11%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

NW
NW

 29 / 52 mph 30 / 15°F 98% 986 mb
Low level cloud: 92%
Mid level cloud: 68%
High level cloud: 37%
Most Significant Cloud Type: low
100%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
Thu 19
Feb		00:00

NW
NW

 28 / 53 mph 29 / 13°F 97% 988 mb
Low level cloud: 90%
Mid level cloud: 50%
High level cloud: 33%
Most Significant Cloud Type: low
100%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
03:00

NNW
NNW

 27 / 50 mph 29 / 13°F 97% 990 mb
Low level cloud: 87%
Mid level cloud: 100%
High level cloud: 75%
Most Significant Cloud Type: low
100%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
06:00

NNW
NNW

 23 / 42 mph 28 / 14°F 97% 992 mb
Low level cloud: 84%
Mid level cloud: 100%
High level cloud: 28%
Most Significant Cloud Type: low
100%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
09:00

NW
NW

 22 / 38 mph 29 / 15°F 96% 994 mb
Low level cloud: 82%
Mid level cloud: 100%
High level cloud: 87%
Most Significant Cloud Type: low
100%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
12:00

NW
NW

 20 / 35 mph 29 / 16°F 93% 995 mb
Low level cloud: 82%
Mid level cloud: 94%
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 / 36 mph 29 / 16°F 93% 995 mb
Low level cloud: 97%
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
18:00

NW
NW

 22 / 37 mph 29 / 15°F 91% 996 mb
Low level cloud: 94%
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

 23 / 38 mph 29 / 15°F 90% 998 mb
Low level cloud: 100%
Mid level cloud: 70%
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:

The outlook for St. John's in the week ahead shows the average daytime maximum temperature will be around 0°C, with a high for the week of 7°C expected on the evening of Tuesday 24th. The mean minimum temperature will be -4°C, dipping to its lowest on the morning of Saturday 21st at -10°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 Wednesday 21st will have the most precipitation with an accumulation of around 38.0mm. On the whole winds are likely to be strong. The strongest wind will be experienced on Wednesday morning, coming from a northerly direction, and reaching around 35mph.

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