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

Summerside weather

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Light drizzle,much the same tomorrow

Env. Canada, the European and the American model put Summerside's high today between 16° and 18°, a 2° split. Tomorrow looks cloudy around 15°, with a 39% chance of rain, and the models disagree, so treat it as uncertain.

17°10°
15°10°
20°
23°11°
16°10°
11°
Todaysplit ±2°Tomorrowsplit ±5°Tuesdaymodels agreeWednesdaymodels agreeThursdaysplit ±3°Fridaysplit ±3°
Env. CanadaGEM model
15°
Overcast
Feels 14° · Wind 10 km/h · Humidity 79%
EuropeanECMWF
13°
Partly cloudy
Feels 13° · Wind 5 km/h · Humidity 82%
AmericanNOAA GFS
12°
Overcast
Feels 11° · Wind 11 km/h · Humidity 95%

Latest for Summerside: Env. Canada (GEM model): 15° Overcast · European (ECMWF): 13° Partly cloudy · American (NOAA GFS): 12° Overcast.

Summerside weather in numbers

from 30 years of measured normals

Summerside swings 38°C across the year, from 24°C highs in July to -14°C lows in January, and June is usually the wettest month in a year that brings about 590 mm of precipitation.

Warmest month
July
24°C average high
Coldest month
January
-14°C average low
Wettest month
June
590 mm a year
Below freezing
6 months
January, February, March, April, November and December
Comfortable
4 months
May, July, August and September
Residents
7,976
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The weather map: all three models at once

Env. Canada, European, American side by side around Summerside and nearby towns.Live rain radar →
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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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14-day forecast

where the models agree, and where they split
Today
Light drizzle
17° 10°
±2°
Tomorrow
Cloudy
15° 10°
±5°
Tue
Cloudy
20°
models agree
Wed
Cloudy
23° 11°
models agree
Thu
Showers
16° 10°
±3°
Fri
Cloudy
11°
±3°
Sat
Light drizzle
12°
models agree
Sun
Cloudy
17°
models agree
Mon
Clear
17°
models agree
Tue
Cloudy
12°
±8°
Wed
Drizzle
±4°
Thu
Light drizzle
13°
±4°
Fri
Cloudy
16°
±4°
Sat
Clear
19°
models agree

Summerside, Alberta is at its warmest in Jul (average highs near 24°C) and coldest in Jan (lows around -14°C), with roughly 590 mm of precipitation across the year. Below, compare what Env. Canada, European, American forecast for Summerside 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.

Summerside climate by month

average daytime high and overnight low across a typical year
Jan
-7°
-14°
Feb
-3°
-12°
Mar
-2°
-11°
Apr
11°
-1°
May
19°
Jun
21°
10°
Jul
24°
14°
Aug
23°
12°
Sep
19°
Oct
10°
Nov
-6°
Dec
-2°
-9°

Which forecast is most accurate in Summerside?

CheckWeather Score — graded against the weather that actually happened
ProviderCheckWeather Score🌡 Temp💨 Wind🌧 RainRun by
European logo
European ★ Best
86
/100rank #1
94±0.3°C95±2.3 km/t7184% hitECMWF - European Centre for Medium-Range Weather ForecastsReading, United Kingdom
American logo
American
79
/100rank #2
90±0.6°C91±4.3 km/t5877% hitNOAA / NCEP (United States)College Park, Maryland, USA
EC
Env. Canada
70
/100rank #3
70±1.7°C93±3.5 km/t5374% hitEnvironment and Climate Change CanadaDorval, Québec, Canada

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.

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°16° to 18°±23%20% to 43% chance
Tomorrow±5°13° to 17°±8%31% to 39% chance
Tue±1°20° to 20°±11%5% to 16% chance
Wed±2°22° to 23°±36%5% to 41% chance
Thu±3°15° to 17°±30%19% to 49% 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 Summerside

today, local time
Sunrise
06:52
Sunset
20:11
Daylight
13h 19m

Common questions

What's the weather in Summerside today?
On this page we show what Env. Canada, European, American each forecast for Summerside 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 Summerside today or tomorrow?
Check the hourly strip and 7-day forecast above. We compare rain from Env. Canada, European, American for Summerside 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 Summerside?
Over the last 30 days, the European model has been the most accurate for Summerside (CheckWeather Score 86/100), ahead of the American at 79. We grade every model against the recorded weather. See the CA accuracy scoreboard for the full method.
What is the warmest month in Summerside?
July is typically the warmest month in Summerside, with average highs around 24°C.
How cold does Summerside get?
The coldest month in Summerside is January, when overnight lows average about -14°C.
How much rain does Summerside get?
Summerside sees roughly 590 mm of precipitation a year, with June usually the wettest month.

Nearby

More CA weather