Boise, Idaho – After a stretch of sun-filled days, southwest Idaho is preparing for a wet start to the week as scattered showers and possible thunderstorms move in Monday and continue through Tuesday night.
According to the National Weather Service in Boise, temperatures will climb into the low to mid-80s this weekend under clear skies, but increasing cloud cover Sunday night signals a shift. By Monday afternoon, the chance of rain rises to 50 percent, with thunderstorms possible across the Treasure Valley, including Boise, Meridian, and Nampa.
Friday brings patchy smoke in the valley during the afternoon with highs near 75, while Saturday stays sunny and warm at 81. Sunday reaches 85 with light winds before clouds and isolated showers begin late that night. Drivers should be alert for patchy fog developing early Tuesday as storm chances peak, bringing potential travel slowdowns on I-84 and Highway 55.
Residents are urged to secure outdoor items and prepare for brief downpours early next week. Conditions dry out again by Wednesday, with highs returning to the mid-80s.
Rain chances hold through Tuesday evening, and additional advisories could be issued if thunderstorms intensify.
Five Day Forecast for Boise, Idaho
- Friday: High 75, patchy smoke, light northwest winds. Low 48, clear.
- Saturday: High 81, sunny and calm. Low 54, clear.
- Sunday: High 85, sunny, light winds. Low 60, clouds building with slight chance showers.
- Monday: High 72, mostly cloudy, 50% chance showers and thunderstorms. Low 54, continued chance of rain.
- Tuesday: High 69, showers likely with patchy fog early. Low 51, storms possible.
