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Bellevue weekend weather

This weekend in Bellevue, WA, 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 72° across the weekend. Agreement is medium — plausible, but worth re-checking closer to the day. Rain chance reaches 63% on at least one model.

Sat

2026-08-01 — every model, side by side
NWSNational Blend (NBM)
71°
Light drizzle
High 71°·Low 62°·Rain 34%
AmericanNOAA GFS
73°
Drizzle
High 73°·Low 60°·Rain 34%
EuropeanECMWF
72°
Light drizzle
High 72°·Low 61°·Rain 63%

All 3 models land within 1° of each other for this day — that is a forecast you can plan on.

Sun

2026-08-02 — every model, side by side
NWSNational Blend (NBM)
71°
Cloudy
High 71°·Low 58°·Rain 17%
AmericanNOAA GFS
74°
Cloudy
High 74°·Low 56°·Rain 17%
EuropeanECMWF
71°
Light drizzle
High 71°·Low 57°·Rain 51%

All 3 models land within 4° of each other for this day — that is a forecast you can plan on.

Where the models disagree

temperature and rain, judged separately
DayTemperatureRain
Today±1°77° to 78°±2%0% to 2% chance
Tomorrow±2°81° to 84°±2%0% to 2% chance
Sat±1°71° to 73°±29%34% to 63% chance
Sun±4°71° to 74°±34%17% to 51% chance
Mon±1°75° to 76°models agree0% to 0% 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?
At least one model puts the weekend rain chance as high as 63%. Weekend forecasts sit far enough ahead that models frequently disagree on showers — when they do, no single app can honestly tell you it will or will not rain.
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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