Skip to main content
One weather site to rule them all
checkweather.io
CheckWeather CACaledon
Forecast confidence: High · models disagree by 2°C

Caledon weather

Loading live data…

Cloudy,rain likely tomorrow

Env. Canada, the European and the American model agree on a high near 17° in Caledon today. Tomorrow looks light drizzle around 18°, with a 53% chance of rain.

17°
18°11°
14°
15°
15°
15°10°
Todaymodels agreeTomorrowmodels agreeMondaymodels agreeTuesdaymodels agreeWednesdaymodels agreeThursdaymodels agree
Env. CanadaGEM model
17°
Light drizzle
Today 17°·Low ·Rain 0%
EuropeanECMWF
16°
Cloudy
Today 16°·Low ·Rain 18%
AmericanNOAA GFS
18°
Cloudy
Today 18°·Low ·Rain 5%
CheckWeather.io on iPhoneFree. No ads, no account.

Caledon weather in numbers

measured normals and 10 years of recorded weather

Caledon swings 33°C across the year, from 25°C highs in July to -8°C lows in February, and June is usually the wettest month in a year that brings about 1002 mm of precipitation. Over 10 years of recorded weather it averages 52 days a year at 25°C or above, 6 of them at 30°C or above, 150 frost nights, and rain on 145 days.

Warmest month
July
25°C average high
Coldest month
February
-8°C average low
Wettest month
June
1002 mm a year
Comfortable
4 months
May, July, August and September
Residents
77,000
share this forecast
Most accurate here
European
85/100 CheckWeather Score
Warm days
52 days
a year at 25°C or above
Frost nights
150 nights
a year below 0°C
Rain days
145 days
a year with 1 mm or more

Day counts are from the ERA5 reanalysis for Caledon’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 Caledon and nearby towns.Live rain radar →
Loading the three model maps…

Caledon 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

Loading the three models…

Caledon 10-day forecast, out to 14 days

where the models agree, and where they split
Today
Cloudy
17°
models agree
Tomorrow
Light drizzle
18° 11°
models agree
Mon
Cloudy
14°
models agree
Tue
Cloudy
15°
models agree
Wed
Cloudy
15°
models agree
Thu
Cloudy
15° 10°
models agree
Fri
Cloudy
19°
±2°
Sat
Mostly clear
20°
models agree
Sun
Mostly clear
20°
±4°
Mon
Cloudy
20°
models agree
Tue
Drizzle
19° 13°
±3°
Wed
Drizzle
16° 11°
models agree
Thu
Cloudy
13°
models agree
Fri
Cloudy
15°
±7°

Caledon, Ontario is at its warmest in Jul (average highs near 25°C) and coldest in Feb (lows around -8°C), with roughly 1002 mm of precipitation across the year. Below, compare what Env. Canada, European, American forecast for Caledon 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.

Caledon climate by month

average daytime high and overnight low across a typical year
Jan
-1°
-6°
Feb
-8°
Mar
-5°
Apr
12°
May
19°
Jun
23°
13°
Jul
25°
15°
Aug
23°
14°
Sep
22°
12°
Oct
14°
Nov
Dec
-4°

Which forecast is most accurate in Caledon?

CheckWeather Score, graded against the weather that actually happened
ProviderCheckWeather-scoreTempWindRainRun by
European logo
European ★ Best
85
/100rank #1
91±0.5°C96±1.9 km/t7184% hitECMWF - European Centre for Medium-Range Weather ForecastsReading, United Kingdom
EC
Env. Canada
83
/100rank #2
89±0.6°C92±3.9 km/t7184% hitEnvironment and Climate Change CanadaDorval, Québec, Canada
American logo
American
79
/100rank #3
87±0.7°C96±2.1 km/t5877% 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 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
Loading ratings…
EuropeanECMWF
Loading ratings…
AmericanNOAA GFS
Loading ratings…

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°16° to 18°±18%0% to 18% chance
Tomorrow±1°18° to 19°±12%41% to 53% chance
Mon±2°13° to 15°models agree0% to 0% chance
Tue±1°15° to 16°±3%3% to 6% chance
Wed±2°14° to 15°±8%17% to 25% 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 Caledon

today, local time
Sunrise
07:03
Sunset
19:22
Daylight
12h 19m

Common questions

What's the weather in Caledon today?
On this page we show what Env. Canada, European, American each forecast for Caledon 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 Caledon today or tomorrow?
Check the hourly strip and 7-day forecast above. We compare rain from Env. Canada, European, American for Caledon 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 Caledon?
Over the last 30 days, the European model has been the most accurate for Caledon (CheckWeather Score 85/100), ahead of the Env. Canada at 83. We grade every model against the recorded weather. See the CA accuracy scoreboard for the full method.
What is the warmest month in Caledon?
July is typically the warmest month in Caledon, with average highs around 25°C.
How cold does Caledon get?
The coldest month in Caledon is February, when overnight lows average about -8°C.
How much rain does Caledon get?
Caledon sees roughly 1002 mm of precipitation a year, with June usually the wettest month.

Nearby

More CA weather