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Louisville weekend weather

This weekend in Louisville, KY, 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 81° across the weekend. Agreement is low — the weekend is genuinely up in the air at this range. Rain chance reaches 98% on at least one model.

Sat

2026-08-01 — every model, side by side
NWSNational Blend (NBM)
77°
Showers
High 77°·Low 71°·Rain 83%
AmericanNOAA GFS
87°
Thunderstorm
High 87°·Low 71°·Rain 83%
EuropeanECMWF
80°
Showers
High 80°·Low 72°·Rain 98%

The models are 10° apart on this day. That is genuine uncertainty — any app showing you a single confident number is hiding it.

Sun

2026-08-02 — every model, side by side
NWSNational Blend (NBM)
79°
Heavy drizzle
High 79°·Low 70°·Rain 57%
AmericanNOAA GFS
81°
Showers
High 81°·Low 70°·Rain 57%
EuropeanECMWF
79°
Heavy drizzle
High 79°·Low 71°·Rain 52%

All 3 models land within 2° 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°85° to 88°models agree0% to 0% chance
Tomorrow±3°88° to 90°models agree4% to 4% chance
Sat±10°77° to 87°±15%83% to 98% chance
Sun±2°79° to 81°±5%52% to 57% chance
Mon±9°74° to 83°±8%31% 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?
At least one model puts the weekend rain chance as high as 98%. 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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