Boise, Idaho – A stretch of seasonably hot weather will grip much of southwest and central Idaho through the weekend, with increasing chances for showers and thunderstorms beginning Saturday. Highs in Boise will remain in the low 90s through early next week, keeping heat safety a priority for outdoor plans.
According to the National Weather Service in Boise, precipitation chances will stay minimal across most valleys through Friday, but moisture will build over the mountains Saturday into Sunday. Locations such as Baker City, McCall, and Brundage Mountain could see rain probabilities climb above 30% by late Sunday, raising the potential for localized downpours and lightning.
Mountain travelers should be prepared for changing conditions, particularly in higher elevations like Banner Summit and Tamarack Ski, where gusty winds may accompany storms. Valley areas, including Nampa and Caldwell, are expected to remain mostly dry but will still see warm evenings and hot afternoons.
Residents are urged to stay hydrated, limit strenuous activity during peak afternoon heat, and monitor weather updates if heading into the backcountry. The thunderstorm threat may continue into early next week, with further advisories possible.
Five-Day Forecast for Boise, Idaho
- Thursday: Low 64°, High 93°, dry
- Friday: Low 62°, High 92°, dry
- Saturday: Low 64°, High 92°, slight evening storm chance
- Sunday: Low 64°, High 88°, scattered storms possible
- Monday: Low 62°, High 93°, isolated showers possible
