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CheckWeather CAStony Plain
Forecast confidence: High · models disagree by 1°C

Stony Plain weather

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Clear,much the same tomorrow

Env. Canada, the European and the American model agree on a high near 20° in Stony Plain today. Tomorrow looks cloudy around 23°, with a 2% chance of rain.

20°
23°
23°
24°
18°
21°
Todaymodels agreeTomorrowmodels agreeSundaysplit ±4°Mondaysplit ±3°Tuesdaysplit ±4°Wednesdaysplit ±4°
Env. CanadaGEM model
21°
Clear
Today 21°·Low ·Rain 0%
EuropeanECMWF
20°
Clear
Today 20°·Low ·Rain 0%
AmericanNOAA GFS
19°
Clear
Today 19°·Low ·Rain 1%
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Stony Plain weather in numbers

measured normals and 10 years of recorded weather

Stony Plain swings 37°C across the year, from 24°C highs in July to -13°C lows in January, and July is usually the wettest month in a year that brings about 591 mm of precipitation. Over 10 years of recorded weather it averages 23 days a year at 25°C or above, 2 of them at 30°C or above, 181 frost nights, and rain on 105 days.

Warmest month
July
24°C average high
Coldest month
January
-13°C average low
Wettest month
July
591 mm a year
Comfortable
4 months
May, June, August and September
Residents
18,000
share this forecast
Most accurate here
European
88/100 CheckWeather Score
Warm days
23 days
a year at 25°C or above
Frost nights
181 nights
a year below 0°C
Rain days
105 days
a year with 1 mm or more

Day counts are from the ERA5 reanalysis for Stony Plain’s grid square, 2016 to 2025, counted the same way for every city so the numbers compare. A reanalysis square is an area, not a weather station, so it is good for counting days and not for a single day’s record.

The weather map: all three models at once

Env. Canada, European, American side by side around Stony Plain and nearby towns.Live rain radar →
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Stony Plain hourly forecast: next 14 hours

consensus of the three models

Rain in the next 24 hours, model by model

each model's own hourly precipitation, side by side

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Stony Plain 10-day forecast, out to 14 days

where the models agree, and where they split
Today
Clear
20°
models agree
Tomorrow
Cloudy
23°
models agree
Sun
Cloudy
23°
±4°
Mon
Cloudy
24°
±3°
Tue
Cloudy
18°
±4°
Wed
Mostly clear
21°
±4°
Thu
Light drizzle
16°
±5°
Fri
Showers
10°
models agree
Sat
Drizzle
13°
±3°
Sun
Cloudy
16°
±6°
Mon
Light drizzle
16°
±7°
Tue
Cloudy
12°
models agree
Wed
Heavy drizzle
10°
±4°
Thu
Drizzle
11°
±9°

Stony Plain, Alberta is at its warmest in Jul (average highs near 24°C) and coldest in Jan (lows around -13°C), with roughly 591 mm of precipitation across the year. Below, compare what Env. Canada, European, American forecast for Stony Plain right now, and see exactly where they disagree.

We grade every model against the weather that actually happened, so you can see which forecast model is most accurate in Canada before you trust any single number.

Stony Plain climate by month

average daytime high and overnight low across a typical year
Jan
-6°
-13°
Feb
-3°
-11°
Mar
-1°
-11°
Apr
11°
-1°
May
18°
Jun
20°
10°
Jul
24°
14°
Aug
22°
12°
Sep
19°
Oct
10°
Nov
-6°
Dec
-1°
-8°

Which forecast is most accurate in Stony Plain?

CheckWeather Score, graded against the weather that actually happened
ProviderCheckWeather-scoreTempWindRainRun by
European logo
European ★ Best
88
/100rank #1
94±0.3°C97±1.4 km/t7687% hitECMWF - European Centre for Medium-Range Weather ForecastsReading, United Kingdom
American logo
American
75
/100rank #2
89±0.6°C91±4.6 km/t4771% hitNOAA / NCEP (United States)College Park, Maryland, USA
EC
Env. Canada
74
/100rank #3
70±1.7°C93±3.3 km/t6581% hitEnvironment and Climate Change CanadaDorval, Québec, Canada

The CheckWeather Score blends temperature, wind and rain accuracy, each measured against ERA5 (the recorded weather) over the last 30 days across 1304 cities. Lower error means a higher score. See which forecast model is most accurate in Canada, how we measure forecast accuracy, or which model each weather app uses.

What do you think of the forecasts?

your vote counts

The accuracy above is the measured record. This is your opinion: which forecast service do you trust most in Canada? Give each 1 to 5 stars.

Env. CanadaGEM model
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EuropeanECMWF
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AmericanNOAA GFS
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One vote per service. Anonymous: we store no personal data, only a one-way hash of your connection for a day to stop double votes.

Where the models disagree

temperature and rain, judged separately
DayTemperatureRain
Today±1°19° to 21°±1%0% to 1% chance
Tomorrow±2°22° to 24°±2%0% to 2% chance
Sun±4°22° to 26°±1%0% to 1% chance
Mon±3°22° to 26°models agree0% to 0% chance
Tue±4°16° to 20°±6%1% to 7% chance

The models often agree on temperature and still split on rain, and rain is usually what decides whether a plan survives. A wide rain range means the shower is genuinely uncertain, not that the forecast is wrong.

Sunrise and sunset in Stony Plain

today, local time
Sunrise
07:15
Sunset
19:43
Daylight
12h 28m

Common questions

What's the weather in Stony Plain today?
On this page we show what Env. Canada, European, American each forecast for Stony Plain today, side by side and updated live. When all three agree the forecast is reliable; when they split, we flag it so you know the day is genuinely less certain.
Will it rain in Stony Plain today or tomorrow?
Check the hourly strip and 7-day forecast above. We compare rain from Env. Canada, European, American for Stony Plain and flag the days where the models disagree on whether showers actually arrive, which is exactly when a single app can catch you out.
Which forecast is most accurate for Stony Plain?
Over the last 30 days, the European model has been the most accurate for Stony Plain (CheckWeather Score 88/100), ahead of the American at 75. We grade every model against the recorded weather. See the CA accuracy scoreboard for the full method.
What is the warmest month in Stony Plain?
July is typically the warmest month in Stony Plain, with average highs around 24°C.
How cold does Stony Plain get?
The coldest month in Stony Plain is January, when overnight lows average about -13°C.
How much rain does Stony Plain get?
Stony Plain sees roughly 591 mm of precipitation a year, with July usually the wettest month.

Nearby

More CA weather