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Detroit weekend weather

This weekend in Detroit, MI, 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 67° across the weekend. Agreement is low - the weekend is genuinely up in the air at this range. Rain chance reaches 95% on at least one model. The models agree closely on temperature but split badly on rain (37 points apart), so the rain call is the uncertain part.

Tomorrow

2026-09-19 — every model, side by side
NWSNational Blend (NBM)
66°
Light rain
High 66°·Low 59°·Rain 55%
AmericanNOAA GFS
67°
Light rain
High 67°·Low 61°·Rain 55%
EuropeanECMWF
67°
Rain
High 67°·Low 61°·Rain 92%

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

Sun

2026-09-20 — every model, side by side
NWSNational Blend (NBM)
65°
Heavy rain
High 65°·Low 60°·Rain 82%
AmericanNOAA GFS
66°
Rain
High 66°·Low 61°·Rain 82%
EuropeanECMWF
69°
Showers
High 69°·Low 60°·Rain 95%

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±3°72° to 74°±8%4% to 12% chance
Tomorrow±1°66° to 67°±37%55% to 92% chance
Sun±4°65° to 69°±13%82% to 95% chance
Mon±8°61° to 69°±6%8% to 14% chance
Tuemodels agree62° to 62°±7%15% to 22% 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 95%. 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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