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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 13
Mar		06:00

SSW
SSW

 20 / 30 mph 51 / 46°F 98% 1001 mb
Low level cloud: 97%
Mid level cloud: 39%
High level cloud: 4%
Most Significant Cloud Type: low
100%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
09:00

SSW
SSW

 26 / 38 mph 54 / 48°F 95% 999 mb
Low level cloud: 93%
Mid level cloud: 17%
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

SSW
SSW

 29 / 40 mph 55 / 48°F 91% 996 mb
Low level cloud: 95%
Mid level cloud: 18%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

SSW
SSW

 36 / 49 mph 51 / 43°F 88% 992 mb
Low level cloud: 98%
Mid level cloud: 48%
High level cloud: 99%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

WSW
WSW

 35 / 60 mph 30 / 14°F 74% 999 mb
Low level cloud: 100%
Mid level cloud: 0%
High level cloud: 19%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

WSW
WSW

 32 / 55 mph 27 / 10°F 74% 1006 mb
Low level cloud: 70%
Mid level cloud: 2%
High level cloud: 0%
Most Significant Cloud Type: low
71%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sat 14
Mar		00:00

W
W

 31 / 40 mph 27 / 11°F 69% 1012 mb
Low level cloud: 65%
Mid level cloud: 0%
High level cloud: 3%
Most Significant Cloud Type: low
65%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

W
W

 27 / 35 mph 26 / 10°F 58% 1018 mb
Low level cloud: 5%
Mid level cloud: 9%
High level cloud: 57%
Most Significant Cloud Type: medium
24%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

W
W

 22 / 29 mph 26 / 12°F 59% 1022 mb
Low level cloud: 0%
Mid level cloud: 12%
High level cloud: 100%
Most Significant Cloud Type: medium
16%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

W
W

 17 / 21 mph 28 / 15°F 56% 1025 mb
Low level cloud: 0%
Mid level cloud: 45%
High level cloud: 100%
Most Significant Cloud Type: medium
48%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

WSW
WSW

 11 / 14 mph 31 / 22°F 55% 1026 mb
Low level cloud: 0%
Mid level cloud: 14%
High level cloud: 90%
Most Significant Cloud Type: medium
17%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

S
S

 5 / 7 mph 34 / 28°F 53% 1024 mb
Low level cloud: 0%
Mid level cloud: 22%
High level cloud: 100%
Most Significant Cloud Type: medium
26%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

SSE
SSE

 14 / 19 mph 30 / 20°F 72% 1023 mb
Low level cloud: 0%
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
21:00

ESE
ESE

 25 / 33 mph 29 / 14°F 82% 1016 mb
Low level cloud: 23%
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
The 7 day weather forecast summary for St. John's:

For St. John's in the coming week the average daytime maximum temperature will be around 5°C, with a high for the week of 14°C expected on the morning of Wednesday 18th. The mean minimum temperature will be -5°C, dipping to its lowest on the morning of Thursday 19th at -6°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 Sunday 19th will have the most precipitation with an accumulation of around 20.0mm. On the whole winds are likely to be strong. The forecast suggests the strongest wind will be on Friday afternoon, coming from a south westerly 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