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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
Mon 16
Mar		18:00

W
W

 5 / 7 mph 29 / 24°F 71% 1039 mb
Low level cloud: 3%
Mid level cloud: 31%
High level cloud: 0%
Most Significant Cloud Type: medium
39%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

SSE
SSE

 8 / 13 mph 27 / 19°F 81% 1038 mb
Low level cloud: 43%
Mid level cloud: 15%
High level cloud: 12%
Most Significant Cloud Type: low
49%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Tue 17
Mar		00:00

S
S

 13 / 28 mph 23 / 11°F 85% 1035 mb
Low level cloud: 1%
Mid level cloud: 46%
High level cloud: 33%
Most Significant Cloud Type: medium
50%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

S
S

 23 / 46 mph 27 / 13°F 82% 1030 mb
Low level cloud: 94%
Mid level cloud: 69%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

S
S

 24 / 47 mph 32 / 18°F 89% 1025 mb
Low level cloud: 89%
Mid level cloud: 97%
High level cloud: 15%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

SSW
SSW

 24 / 28 mph 43 / 34°F 93% 1022 mb
Low level cloud: 90%
Mid level cloud: 26%
High level cloud: 80%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

SSW
SSW

 27 / 31 mph 50 / 43°F 96% 1019 mb
Low level cloud: 93%
Mid level cloud: 34%
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

SSW
SSW

 28 / 32 mph 55 / 49°F 94% 1016 mb
Low level cloud: 88%
Mid level cloud: 45%
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

SSW
SSW

 26 / 29 mph 56 / 51°F 94% 1014 mb
Low level cloud: 94%
Mid level cloud: 45%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

SSW
SSW

 27 / 31 mph 57 / 52°F 94% 1013 mb
Low level cloud: 92%
Mid level cloud: 46%
High level cloud: 20%
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:

For St. John's in the coming week the average daytime maximum temperature will be around 4°C, with a high for the week of 14°C expected on the evening of Tuesday 17th. The mean minimum temperature will be -4°C, dipping to its lowest on the morning of Monday 16th at -6°C. Expect the coming week to have mixed weather with some days dry and some seeing a little rain or snow. The current forecast indicates Monday 16th will have the most precipitation with an accumulation of around 9.0mm. On the whole winds are likely to be moderate. The forecast suggests the strongest wind will be on Wednesday morning, coming from a south westerly direction, and reaching around 29mph. The forecast suggests the maximum gusts will be on Tuesday morning.

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