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Winnipeg weekend weather

This weekend in Winnipeg, Manitoba, 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 32° across the weekend. Agreement is low — the weekend is genuinely up in the air at this range.

Sat

2026-08-01 — every model, side by side
Env. CanadaGEM model
29°
Mostly clear
High 29°·Low 16°·Rain 10%
EuropeanECMWF
28°
Clear
High 28°·Low 16°·Rain 8%
AmericanNOAA GFS
32°
Partly cloudy
High 32°·Low 16°·Rain 4%

The models range from 28° to 32°. Treat the middle of that range as the likely outcome and keep a backup plan.

Sun

2026-08-02 — every model, side by side
Env. CanadaGEM model
30°
Light drizzle
High 30°·Low 20°·Rain 10%
EuropeanECMWF
33°
Light drizzle
High 33°·Low 20°·Rain 14%
AmericanNOAA GFS
38°
Cloudy
High 38°·Low 21°·Rain 10%

The models are 8° apart on this day. That is genuine uncertainty — any app showing you a single confident number is hiding it.

Where the models disagree

temperature and rain, judged separately
DayTemperatureRain
Today±2°30° to 32°±52%20% to 72% chance
Tomorrow±3°27° to 29°±1%1% to 2% chance
Sat±4°28° to 32°±6%4% to 10% chance
Sun±8°30° to 38°±4%10% to 14% chance
Mon±3°25° to 28°±13%26% to 39% 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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