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CheckWeather CASault Ste. Marie
Forecast confidence: High · models disagree by 2°C

Sault Ste. Marie (SSM) weather

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Cloudy,much the same tomorrow

Env. Canada, the European and the American model agree on a high near 18° in Sault Ste. Marie today. Tomorrow looks cloudy around 19°, with a 5% chance of rain.

18°
19°
15°
18°
18°
20°
Todaymodels agreeTomorrowsplit ±3°Mondaymodels agreeTuesdaysplit ±2°Wednesdaymodels agreeThursdaysplit ±3°
Env. CanadaGEM model
19°
Cloudy
Today 19°·Low ·Rain 10%
EuropeanECMWF
17°
Cloudy
Today 17°·Low ·Rain 4%
AmericanNOAA GFS
19°
Cloudy
Today 19°·Low ·Rain 5%
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Sault Ste. Marie weather in numbers

measured normals and 10 years of recorded weather

Sault Ste. Marie swings 33°C across the year, from 23°C highs in July to -10°C lows in February, and April is usually the wettest month in a year that brings about 1001 mm of precipitation. Over 10 years of recorded weather it averages 33 days a year at 25°C or above, 2 of them at 30°C or above, 158 frost nights, and rain on 150 days.

Warmest month
July
23°C average high
Coldest month
February
-10°C average low
Wettest month
April
1001 mm a year
Comfortable
4 months
May, June, July and August
Residents
72,000
share this forecast
Most accurate here
European
94/100 CheckWeather Score
Warm days
33 days
a year at 25°C or above
Frost nights
158 nights
a year below 0°C
Rain days
150 days
a year with 1 mm or more

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

where the models agree, and where they split
Today
Cloudy
18°
models agree
Tomorrow
Cloudy
19°
±3°
Mon
Cloudy
15°
models agree
Tue
Cloudy
18°
±2°
Wed
Clear
18°
models agree
Thu
Clear
20°
±3°
Fri
Mostly clear
21°
±4°
Sat
Cloudy
22°
±4°
Sun
Mostly clear
21°
±5°
Mon
Cloudy
17°
models agree
Tue
Light rain
16° 10°
±6°
Wed
Light rain
16°
±10°
Thu
Cloudy
13°
models agree
Fri
Drizzle
15°
±9°

Sault Ste. Marie, Ontario (often shortened to Sault, SSM) is at its warmest in Jul (average highs near 23°C) and coldest in Feb (lows around -10°C), with roughly 1001 mm of precipitation across the year. Below, compare what Env. Canada, European, American forecast for Sault Ste. Marie 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.

Sault Ste. Marie climate by month

average daytime high and overnight low across a typical year
Jan
-3°
-8°
Feb
-1°
-10°
Mar
-6°
Apr
May
18°
Jun
22°
12°
Jul
23°
14°
Aug
23°
14°
Sep
22°
12°
Oct
14°
Nov
Dec
-6°

Which forecast is most accurate in Sault Ste. Marie?

CheckWeather Score, graded against the weather that actually happened
ProviderCheckWeather-scoreTempWindRainRun by
European logo
European ★ Best
94
/100rank #1
92±0.4°C97±1.3 km/t9597% hitECMWF - European Centre for Medium-Range Weather ForecastsReading, United Kingdom
EC
Env. Canada
86
/100rank #2
84±0.9°C93±3.4 km/t8290% hitEnvironment and Climate Change CanadaDorval, Québec, Canada
American logo
American
69
/100rank #3
73±1.5°C95±2.4 km/t4771% 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 19°±6%4% to 10% chance
Tomorrow±3°18° to 20°±2%3% to 5% chance
Mon±1°14° to 15°models agree0% to 0% chance
Tue±2°16° to 18°models agree0% to 0% chance
Wed±2°17° to 19°±6%4% to 10% 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 Sault Ste. Marie

today, local time
Sunrise
07:20
Sunset
19:40
Daylight
12h 20m

Common questions

What's the weather in Sault Ste. Marie today?
On this page we show what Env. Canada, European, American each forecast for Sault Ste. Marie 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 Sault Ste. Marie today or tomorrow?
Check the hourly strip and 7-day forecast above. We compare rain from Env. Canada, European, American for Sault Ste. Marie 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 Sault Ste. Marie?
Over the last 30 days, the European model has been the most accurate for Sault Ste. Marie (CheckWeather Score 94/100), ahead of the Env. Canada at 86. We grade every model against the recorded weather. See the CA accuracy scoreboard for the full method.
What is the warmest month in Sault Ste. Marie?
July is typically the warmest month in Sault Ste. Marie, with average highs around 23°C.
How cold does Sault Ste. Marie get?
The coldest month in Sault Ste. Marie is February, when overnight lows average about -10°C.
How much rain does Sault Ste. Marie get?
Sault Ste. Marie sees roughly 1001 mm of precipitation a year, with April usually the wettest month.

Nearby

More CA weather