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Edmonton weekend weather

This weekend in Edmonton, Alberta, model by model. Weekend forecasts are far enough out that the models often split - so we show you where.

Weekend

The models centre on about 24° across the weekend. Agreement is high - unusually solid for this far out.

Tomorrow

2026-09-19 — every model, side by side
Env. CanadaGEM model
23°
Clear
High 23°·Low ·Rain 0%
EuropeanECMWF
23°
Cloudy
High 23°·Low 11°·Rain 0%
AmericanNOAA GFS
23°
Cloudy
High 23°·Low 10°·Rain 2%

All 3 models land within under a degree of each other for this day — that is a forecast you can plan on.

Sun

2026-09-20 — every model, side by side
Env. CanadaGEM model
25°
Clear
High 25°·Low ·Rain 0%
EuropeanECMWF
23°
Cloudy
High 23°·Low 11°·Rain 0%
AmericanNOAA GFS
24°
Cloudy
High 24°·Low 11°·Rain 1%

All 3 models land within 2° of each other for this day — that is a forecast you can plan on.

Where the models disagree

temperature and rain, judged separately
DayTemperatureRain
Todaymodels agree21° to 21°±1%0% to 1% chance
Tomorrowmodels agree23° to 23°±2%0% to 2% chance
Sun±2°23° to 25°±1%0% to 1% chance
Mon±2°24° to 26°models agree0% to 0% chance
Tue±5°16° to 21°±5%2% to 7% 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.

Common questions

Will it rain this weekend?
The models are not currently showing a high weekend rain risk, and they broadly agree with each other.
How reliable is a weekend forecast?
It depends how far away the weekend is. Forecast error grows steadily with lead time, so a Saturday forecast made on Friday is far stronger than one made the previous Monday. The honest signal is model agreement: when they converge the forecast is solid, and when they spread the weekend is genuinely uncertain.

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