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Kelowna weekend weather

This weekend in Kelowna, British Columbia, 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 25° across the weekend. Agreement is low - the weekend is genuinely up in the air at this range.

Tomorrow

2026-09-19 — every model, side by side
Env. CanadaGEM model
22°
Clear
High 22°·Low 14°·Rain 0%
EuropeanECMWF
26°
Cloudy
High 26°·Low 15°·Rain 0%
AmericanNOAA GFS
28°
Cloudy
High 28°·Low 14°·Rain 1%

The models are 5° apart on this day. That is genuine uncertainty — any app showing you a single confident number is hiding it.

Sun

2026-09-20 — every model, side by side
Env. CanadaGEM model
22°
Clear
High 22°·Low 14°·Rain 0%
EuropeanECMWF
26°
Partly cloudy
High 26°·Low 15°·Rain 0%
AmericanNOAA GFS
30°
Cloudy
High 30°·Low 16°·Rain 0%

The models are 7° 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±4°22° to 25°models agree0% to 0% chance
Tomorrow±5°22° to 28°±1%0% to 1% chance
Sun±7°22° to 30°models agree0% to 0% chance
Mon±8°21° to 29°models agree0% to 0% chance
Tue±3°22° to 25°±11%0% to 11% 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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