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Brandon weekend weather

This weekend in Brandon, 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 33° 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
27°
Cloudy
High 27°·Low 18°·Rain 34%
EuropeanECMWF
28°
Partly cloudy
High 28°·Low 17°·Rain 18%
AmericanNOAA GFS
30°
Cloudy
High 30°·Low 14°·Rain 8%

The models range from 27° to 30°. 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
33°
Cloudy
High 33°·Low 20°·Rain 14%
EuropeanECMWF
33°
Cloudy
High 33°·Low 21°·Rain 12%
AmericanNOAA GFS
41°
Cloudy
High 41°·Low 20°·Rain 4%

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±1°28° to 30°±40%26% to 66% chance
Tomorrow±2°27° to 29°±11%8% to 19% chance
Sat±3°27° to 30°±26%8% to 34% chance
Sun±8°33° to 41°±10%4% to 14% chance
Mon±5°21° to 26°±1%19% to 20% 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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