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CheckWeather CAHumber Summit
Forecast confidence: Medium · models disagree by 2°C

Humber Summit weather

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Cloudy,rain likely tomorrow

Env. Canada, the European and the American model put Humber Summit's high today between 17° and 20°, a 2° split. Tomorrow looks light drizzle around 20°, with a 55% chance of rain.

19°10°
20°13°
17°10°
16°10°
16°11°
16°13°
Todaysplit ±2°Tomorrowmodels agreeMondaymodels agreeTuesdaymodels agreeWednesdaymodels agreeThursdaymodels agree
Env. CanadaGEM model
20°
Light drizzle
Today 20°·Low 10°·Rain 0%
EuropeanECMWF
17°
Cloudy
Today 17°·Low 11°·Rain 20%
AmericanNOAA GFS
19°
Cloudy
Today 19°·Low ·Rain 4%
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Humber Summit weather in numbers

from 30 years of measured normals

Humber Summit swings 34°C across the year, from 27°C highs in July to -7°C lows in February, and April is usually the wettest month in a year that brings about 1026 mm of precipitation.

Warmest month
July
27°C average high
Coldest month
February
-7°C average low
Wettest month
April
1026 mm a year
Below freezing
4 months
January, February, March and December
Comfortable
4 months
May, June, August and September
Residents
12,000
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The weather map: all three models at once

Env. Canada, European, American side by side around Humber Summit and nearby towns.Live rain radar →
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Humber Summit 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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Humber Summit 10-day forecast, out to 14 days

where the models agree, and where they split
Today
Cloudy
19° 10°
±2°
Tomorrow
Light drizzle
20° 13°
models agree
Mon
Cloudy
17° 10°
models agree
Tue
Cloudy
16° 10°
models agree
Wed
Cloudy
16° 11°
models agree
Thu
Light drizzle
16° 13°
models agree
Fri
Cloudy
21° 11°
±4°
Sat
Clear
21° 10°
models agree
Sun
Clear
22° 11°
±5°
Mon
Cloudy
21° 12°
±4°
Tue
Light drizzle
20° 14°
models agree
Wed
Drizzle
18° 14°
models agree
Thu
Light drizzle
17° 11°
±4°
Fri
Cloudy
17°
±5°

Humber Summit, Ontario is at its warmest in Jul (average highs near 27°C) and coldest in Feb (lows around -7°C), with roughly 1026 mm of precipitation across the year. Below, compare what Env. Canada, European, American forecast for Humber Summit 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.

Humber Summit climate by month

average daytime high and overnight low across a typical year
Jan
-5°
Feb
-7°
Mar
-3°
Apr
13°
May
20°
Jun
24°
14°
Jul
27°
16°
Aug
25°
15°
Sep
23°
13°
Oct
16°
Nov
Dec
-2°

Which forecast is most accurate in Humber Summit?

CheckWeather Score, graded against the weather that actually happened
ProviderCheckWeather-scoreTempWindRainRun by
European logo
European ★ Best
95
/100rank #1
94±0.3°C98±1.1 km/t9597% hitECMWF - European Centre for Medium-Range Weather ForecastsReading, United Kingdom
EC
Env. Canada
72
/100rank #2
78±1.2°C97±1.5 km/t4771% hitEnvironment and Climate Change CanadaDorval, Québec, Canada
American logo
American
68
/100rank #3
77±1.3°C92±3.8 km/t4268% 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
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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°17° to 20°±20%0% to 20% chance
Tomorrow±1°20° to 21°±20%35% to 55% chance
Mon±1°16° to 17°models agree0% to 0% chance
Tuemodels agree16° to 17°±4%0% to 4% chance
Wed±2°15° to 17°±7%12% to 19% 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 Humber Summit

today, local time
Sunrise
07:02
Sunset
19:21
Daylight
12h 19m

Common questions

What's the weather in Humber Summit today?
On this page we show what Env. Canada, European, American each forecast for Humber Summit 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 Humber Summit today or tomorrow?
Check the hourly strip and 7-day forecast above. We compare rain from Env. Canada, European, American for Humber Summit 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 Humber Summit?
Over the last 30 days, the European model has been the most accurate for Humber Summit (CheckWeather Score 95/100), 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 Humber Summit?
July is typically the warmest month in Humber Summit, with average highs around 27°C.
How cold does Humber Summit get?
The coldest month in Humber Summit is February, when overnight lows average about -7°C.
How much rain does Humber Summit get?
Humber Summit sees roughly 1026 mm of precipitation a year, with April usually the wettest month.

Nearby

More CA weather