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Forecast confidence: High · models disagree by 2°C

Weston weather

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Clear,much the same tomorrow

Env. Canada, the European and the American model agree on a high near 15° in Weston today. Tomorrow: partly cloudy, around 17°, with a 0% chance of rain.

15°3°
17°4°
16°8°
10°3°
12°6°
20°8°
Todaymodels agreeTomorrowmodels agreeMondaysplit ±2°Tuesdaymodels agreeWednesdaysplit ±3°Thursdaysplit ±3°
Env. CanadaGEM model
8°
Clear
Feels 6° · Wind 6 km/h · Humidity 77%
EuropeanECMWF
9°
Clear
Feels 7° · Wind 7 km/h · Humidity 83%
AmericanNOAA GFS
9°
Clear
Feels 7° · Wind 5 km/h · Humidity 84%

Latest for Weston: Env. Canada (GEM model): 8° Clear · European (ECMWF): 9° Clear · American (NOAA GFS): 9° Clear.

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Weston weather in numbers

measured normals and 10 years of recorded weather

Weston swings 34°C across the year, from 25°C highs in July to -9°C lows in February, and August is usually the wettest month in a year that brings about 840 mm of precipitation. Over 10 years of recorded weather it averages 73 days a year at 25°C or above, 16 of them at 30°C or above, 128 frost nights, and rain on 131 days.

Warmest month
July
25°C average high
Coldest month
February
-9°C average low
Wettest month
August
840 mm a year
Comfortable
4 months
May, June, July and September
Residents
18,000
share this forecast
Most accurate here
European
98/100 CheckWeather Score
Warm days
73 days
a year at 25°C or above
Frost nights
128 nights
a year below 0°C
Rain days
131 days
a year with 1 mm or more

Day counts are from the ERA5 reanalysis for Weston’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 Weston and nearby towns.Live rain radar →
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Weston 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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Weston 10-day forecast, out to 14 days

where the models agree, and where they split
Today
Clear
15° 3°
models agree
Tomorrow
Partly cloudy
17° 4°
models agree
Mon
Cloudy
16° 8°
±2°
Tue
Cloudy
10° 3°
models agree
Wed
Cloudy
12° 6°
±3°
Thu
Partly cloudy
20° 8°
±3°
Fri
Clear
15° 7°
models agree
Sat
Cloudy
15° 8°
±4°
Sun
Light drizzle
17° 10°
models agree
Mon
Heavy drizzle
16° 7°
±2°
Tue
Light drizzle
11° 3°
models agree
Wed
Light drizzle
8° 1°
models agree
Thu
Light drizzle
11° 4°
±5°
Fri
Light drizzle
9° 3°
models agree

Weston, Ontario is at its warmest in Jul (average highs near 25°C) and coldest in Feb (lows around -9°C), with roughly 840 mm of precipitation across the year. Below, compare what Env. Canada, European, American forecast for Weston 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.

Weston climate by month

average daytime high and overnight low across a typical year (1991-2020)
Jan
-2°
-8°
Feb
1°
-9°
Mar
4°
-5°
Apr
11°
1°
May
18°
7°
Jun
22°
13°
Jul
25°
15°
Aug
24°
15°
Sep
20°
11°
Oct
14°
5°
Nov
7°
0°
Dec
2°
-4°

Source: 1991-2020 averages, ERA5 for this place adjusted with NASA POWER.

How the weather around Weston has changed since 1995

Weston sits in the same roughly 50 km square of NASA's reanalysis as Toronto. That square ran 2.1°C warmer in 2015-2024 than in 1995-2004. See the full 30-year picture on the Toronto page.

Which forecast is most accurate in Weston?

CheckWeather Score, graded against the weather that actually happened
ProviderCheckWeather-scoreTempWindRainRun by
European logo
European ★ Best
98
/100rank #1
96±0.2°C98±0.9 km/h100100% hitECMWF - European Centre for Medium-Range Weather ForecastsReading, United Kingdom
EC
Env. Canada
91
/100rank #2
82±1.0°C98±1.1 km/h9597% hitEnvironment and Climate Change CanadaDorval, Québec, Canada
American logo
American
84
/100rank #3
88±0.7°C95±2.4 km/h7184% hitNOAA / NCEP (United States)College Park, Maryland, USA

The CheckWeather Score blends temperature, wind and rain accuracy, each measured against ERA5 (the recorded weather) over the last 30 days across 1320 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±2°14° to 16°models agree0% to 0% chance
Tomorrow±2°17° to 18°models agree0% to 0% chance
Mon±2°14° to 17°±16%0% to 16% chance
Tue±2°9° to 11°±6%0% to 6% chance
Wed±3°10° to 14°±4%2% to 6% 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 Weston

today, local time
Sunrise
07:43
Sunset
18:19
Daylight
10h 36m

Common questions

What's the weather in Weston today?
Saturday, October 24: Env. Canada, the European and the American model agree on a high near 15° in Weston today. Tomorrow: partly cloudy, around 17°, with a 0% chance of rain. The forecast on this page refreshes live.
Will it rain in Weston today or tomorrow?
Rain looks unlikely in Weston on Sunday, October 25: no model gives more than 0% (Env. Canada 0%, European 0%, American 0%). On Saturday, October 24 the highest chance of rain from any model is 0%. The hourly strip and the model-by-model rain panel above update live.
Which forecast is most accurate for Weston?
Over the last 30 days, the European model has been the most accurate for Weston (CheckWeather Score 98/100), ahead of the Env. Canada at 91. We grade every model against the recorded weather. See the CA accuracy scoreboard for the full method.
What is the warmest month in Weston?
July is typically the warmest month in Weston, with average highs around 25°C.
How cold does Weston get?
The coldest month in Weston is February, when overnight lows average about -9°C.
How much rain does Weston get?
Weston sees roughly 840 mm of precipitation a year, with August usually the wettest month.

Nearby

More CA weather