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Clouds & showers on the increase as the weekend approaches

Tracking an old tropical storm into Idaho
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The heat has been building with Thursday temperatures 6-10 degrees above normal. This heat will continue on Friday, but clouds will be on the increase, and some areas will see showers & storms developing Saturday into Sunday morning.

High Temperatures Today

Looking ahead, Sunday brings bigger changes. A stronger system from the Gulf of Alaska will push a cold front through Idaho. Expect a 20–30% chance of showers and storms in the mountains to the north, along with gusty west to northwest winds farther south. Cooler, clearer conditions settle in Sunday night into Monday.

Temperatures rebound on Tuesday under a new ridge, but another system could swing up from California midweek.

Stay up to date on my weekend forecast right here

Scott Dorval's Idaho News6 Forecast - 9/18/25

Tonight
Mostly cloudy, with a low around 61. Light wind.

Friday
Lots of clouds but still quite warm, with a high near 87. Light wind.

Saturday
Clouds & sun with a few late-day mountain showers or storms, with a high near 86. Light wind.

Saturday Night
Partly cloudy & mild with a slight chance of showers, and a low around 60.

Sunday
Increasing afternoon sunshine, with a high near 80.

Monday
Sunny and very pleasant, with a high near 78.

Tuesday
Sunny and warmer, with a high near 85.

Wednesday
Sunny, with a high near 84.

Thursday
Mostly sunny, with a high near 80.

Stay connected right here for my updated weekend forecast.

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