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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 22
Mar		00:00

ESE
ESE

 13 / 23 mph 27 / 17°F 96% 1005 mb
Low level cloud: 97%
Mid level cloud: 0%
High level cloud: 33%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

ESE
ESE

 13 / 23 mph 28 / 18°F 98% 999 mb
Low level cloud: 100%
Mid level cloud: 33%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

SSE
SSE

 10 / 14 mph 32 / 24°F 98% 994 mb
Low level cloud: 91%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: low
92%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

SSW
SSW

 18 / 21 mph 36 / 26°F 95% 990 mb
Low level cloud: 98%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: low
99%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

W
W

 27 / 31 mph 36 / 24°F 93% 993 mb
Low level cloud: 80%
Mid level cloud: 20%
High level cloud: 0%
Most Significant Cloud Type: low
86%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

WSW
WSW

 25 / 28 mph 38 / 27°F 75% 999 mb
Low level cloud: 39%
Mid level cloud: 10%
High level cloud: 0%
Most Significant Cloud Type: low
42%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

W
W

 27 / 35 mph 32 / 18°F 70% 1005 mb
Low level cloud: 26%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
26%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

W
W

 25 / 43 mph 25 / 10°F 70% 1010 mb
Low level cloud: 15%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: low
15%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Mon 23
Mar		00:00

W
W

 20 / 32 mph 25 / 10°F 69% 1013 mb
Low level cloud: 23%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: low
24%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

W
W

 18 / 27 mph 24 / 10°F 69% 1015 mb
Low level cloud: 2%
Mid level cloud: 22%
High level cloud: 0%
Most Significant Cloud Type: medium
28%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

WNW
WNW

 16 / 25 mph 23 / 10°F 68% 1017 mb
Low level cloud: 0%
Mid level cloud: 1%
High level cloud: 0%
Most Significant Cloud Type: high
0%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

WNW
WNW

 12 / 18 mph 25 / 13°F 63% 1019 mb
Low level cloud: 0%
Mid level cloud: 5%
High level cloud: 20%
Most Significant Cloud Type: medium
5%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

WNW
WNW

 6 / 9 mph 27 / 20°F 55% 1020 mb
Low level cloud: 0%
Mid level cloud: 5%
High level cloud: 98%
Most Significant Cloud Type: medium
9%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

ENE
ENE

 3 / 5 mph 28 / 24°F 55% 1020 mb
Low level cloud: 0%
Mid level cloud: 100%
High level cloud: 69%
Most Significant Cloud Type: medium
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

E
E

 9 / 14 mph 24 / 14°F 80% 1020 mb
Low level cloud: 42%
Mid level cloud: 100%
High level cloud: 100%
Most Significant Cloud Type: low
88%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

ESE
ESE

 12 / 19 mph 24 / 13°F 94% 1020 mb
Low level cloud: 59%
Mid level cloud: 87%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 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 1°C, with a high for the week of 12°C expected on the afternoon of Friday 27th. The mean minimum temperature will be -6°C, dipping to its lowest on the morning of Sunday 29th at -9°C. The coming week will have some days seeing a little precipitation and some days with rain, sleet or snow. Predictions are Tuesday 29th 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 felt on Friday afternoon, coming from a southerly 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