A high-pressure ridge will develop by mid-week, leading to dry weather and light winds throughout the Inland Northwest. With calm winds, clear skies, and dry air, temperatures are expected to drop into the 30s and 40s by Tuesday morning. Patchy fog and frost may form in the coldest northeastern valleys and in areas near lakes and rivers. The chilly fall mornings will be short-lived, as afternoon temperatures are expected to climb into the upper 70s to low 80s. This warming trend will persist into Wednesday, with highs reaching the mid to upper 80s by the afternoon.

Tri-Cities:

Tuesday: Mostly cloudy... 81/48

Wednesday: Partly cloudy... 84/51

Thursday: Partly cloudy, gusty... 86/52

Friday: Partly cloudy, gusty... 78/50

Saturday: Partly cloudy... 79/53

Sunday: Partly cloud

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