BOISE, Idaho – Under a clear pre-dawn sky and light winds, Boise wakes to calm and comfortable air this Thursday—perhaps the last truly dry morning before a more unsettled stretch arrives. It’s quiet now, but clouds will start building by late Friday, signaling a change that will bring much-needed rain and a hint of the season’s first chill.
According to the National Weather Service in Boise, Thursday will stay bright and mild with highs near 68°F, followed by an even warmer Friday reaching the low 70s. Southwesterly flow ahead of an incoming system will pull in moisture from the Pacific, setting the stage for showers by Saturday.
Rain chances increase sharply by early Saturday, with widespread showers likely through much of the day and evening. Some brief thunder or heavier bursts of rain could occur during the afternoon, especially along the foothills and I-84 corridor between Boise and Nampa. Roads may turn slick for those running weekend errands or traveling for early Halloween events, so extra caution is advised.
By Sunday, lingering clouds and cooler air settle across the Treasure Valley. Highs fall into the low 50s, and lows dip toward the upper 30s. Next week looks active again, with another Pacific disturbance bringing additional showers Monday and Tuesday.
For now, residents can enjoy one more warm, golden day before fall’s wetter, windier side takes over—an early reminder that November is closing in fast on the high desert.
Five-Day Forecast for Boise, ID:
Thu: 68/42 – Sunny, calm; mild late October day.
Fri: 72/51 – Mostly sunny; breezy late.
Sat: 62/40 – Rain likely; brief thunder possible.
Sun: 53/38 – Cloudy and cool; light showers taper.
Mon: 54/34 – Partly sunny; showers redevelop late.
