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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
Sun 21
Dec		00:00

W
W

 30 / 47 mph 30 / 14°F 64% 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
03:00

W
W

 22 / 34 mph 28 / 14°F 62% 1014 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 29%
Most Significant Cloud Type: high
28%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

W
W

 15 / 26 mph 29 / 18°F 64% 1017 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
09:00

WSW
WSW

 12 / 14 mph 33 / 24°F 67% 1019 mb
Low level cloud: 0%
Mid level cloud: 14%
High level cloud: 98%
Most Significant Cloud Type: medium
18%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

SW
SW

 11 / 13 mph 38 / 31°F 67% 1019 mb
Low level cloud: 0%
Mid level cloud: 93%
High level cloud: 100%
Most Significant Cloud Type: medium
97%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

SW
SW

 13 / 14 mph 40 / 33°F 75% 1018 mb
Low level cloud: 34%
Mid level cloud: 100%
High level cloud: 100%
Most Significant Cloud Type: medium
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

SSW
SSW

 16 / 18 mph 38 / 29°F 85% 1016 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
21:00

S
S

 16 / 27 mph 35 / 25°F 86% 1013 mb
Low level cloud: 74%
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
Mon 22
Dec		18:00

N
N

 17 / 30 mph 27 / 15°F 81% 1005 mb
Low level cloud: 95%
Mid level cloud: 61%
High level cloud: 33%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

N
N

 17 / 28 mph 26 / 13°F 82% 1006 mb
Low level cloud: 100%
Mid level cloud: 6%
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:

Taking a look at St. John's over the coming week and the average daytime maximum temperature will be around 1°C, with a high for the week of 6°C expected on the morning of Monday 22nd. The mean minimum temperature will be -6°C, dipping to its lowest on the evening of Saturday 27th at -7°C. Expect the next week to have some days seeing a little precipitation and some days with rain or snow. Current predictions suggest Saturday 27th will have the most precipitation with an accumulation of around 11.0mm. On the whole winds are likely to be strong. The forecast suggests the strongest wind will be on Saturday morning, coming from a south easterly direction, and reaching around 38mph. The forecast suggests the maximum gusts will be on Thursday evening.

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