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Every Canadian forecast, compared
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CheckWeather CAGranby
Forecast confidence: Medium · models disagree by 3°C

Granby weather

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Cloudy,much the same tomorrow

Env. Canada, the European and the American model put Granby's high today between 20° and 23°, a 3° split. Tomorrow looks partly cloudy around 24°, with a 18% chance of rain.

21°11°
24°10°
20°12°
21°12°
22°14°
17°12°
Todaysplit ±3°Tomorrowmodels agreeTuesdaymodels agreeWednesdaymodels agreeThursdaysplit ±4°Fridaysplit ±2°
Env. CanadaGEM model
23°
Cloudy
Today 23°·Low 11°·Rain 46%
EuropeanECMWF
20°
Drizzle
Today 20°·Low 11°·Rain 82%
AmericanNOAA GFS
20°
Cloudy
Today 20°·Low 11°·Rain 21%

The weather map: all three models at once

Env. Canada, European, American side by side around Granby and nearby towns.Live rain radar →
Loading the three model maps…

Next 14 hours

consensus of the three models

14-day forecast

where the models agree, and where they split
Today
Cloudy
21° 11°
±3°
Tomorrow
Partly cloudy
24° 10°
models agree
Tue
Light drizzle
20° 12°
models agree
Wed
Showers
21° 12°
models agree
Thu
Heavy drizzle
22° 14°
±4°
Fri
Light drizzle
17° 12°
±2°
Sat
Cloudy
22° 11°
±5°
Sun
Showers
23° 14°
±11°
Mon
Cloudy
19° 11°
±8°
Tue
Light rain
18° 13°
models agree
Wed
Partly cloudy
20° 10°
±4°
Thu
Cloudy
19° 10°
±2°
Fri
Cloudy
18°
models agree
Sat
Heavy drizzle
18°
±3°

Granby, Quebec is at its warmest in Jul (average highs near 26°C) and coldest in Feb (lows around -10°C), with roughly 1349 mm of precipitation across the year. Below, compare what Env. Canada, European, American forecast for Granby 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.

Granby climate by month

average daytime high and overnight low across a typical year
Jan
-2°
-9°
Feb
-10°
Mar
-5°
Apr
13°
May
19°
Jun
23°
14°
Jul
26°
17°
Aug
23°
15°
Sep
22°
13°
Oct
15°
Nov
-1°
Dec
-7°

Which forecast is most accurate in Granby?

CheckWeather Score — graded against the weather that actually happened
ProviderCheckWeather Score🌡 Temp💨 Wind🌧 RainRun by
European logo
European ★ Best
92
/100rank #1
91±0.5°C97±1.3 km/t8994% hitECMWF - European Centre for Medium-Range Weather ForecastsReading, United Kingdom
EC
Env. Canada
72
/100rank #2
57±2.4°C96±2.1 km/t7184% hitEnvironment and Climate Change CanadaDorval, Québec, Canada
American logo
American
64
/100rank #3
79±1.2°C96±2.1 km/t2458% 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 1302 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.

Where the models disagree

temperature and rain, judged separately
DayTemperatureRain
Today±3°20° to 23°±61%21% to 82% chance
Tomorrow±1°23° to 24°±15%3% to 18% chance
Tue±1°19° to 20°±18%15% to 33% chance
Wed±2°20° to 22°±5%81% to 86% chance
Thu±4°20° to 24°±4%82% to 86% 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 Granby

today, local time
Sunrise
06:18
Sunset
19:19
Daylight
13h 1m

Common questions

What's the weather in Granby today?
On this page we show what Env. Canada, European, American each forecast for Granby 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 Granby today or tomorrow?
Check the hourly strip and 7-day forecast above. We compare rain from Env. Canada, European, American for Granby 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 Granby?
Over the last 30 days, the European model has been the most accurate for Granby (CheckWeather Score 92/100), ahead of the Env. Canada at 72. We grade every model against the recorded weather. See the CA accuracy scoreboard for the full method.
What is the warmest month in Granby?
July is typically the warmest month in Granby, with average highs around 26°C.
How cold does Granby get?
The coldest month in Granby is February, when overnight lows average about -10°C.
How much rain does Granby get?
Granby sees roughly 1349 mm of precipitation a year, with July usually the wettest month.

Nearby

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