BOISE, Idaho – The Treasure Valley wakes to a calm, clear Halloween morning, the air crisp and still under a soft amber glow. After a run of frosty starts earlier this month, western Idaho is set for a comfortable stretch of classic fall weather—sunny days, cool nights, and just a whisper of change ahead as November begins.
According to the National Weather Service in Boise, dry and mild conditions will hold steady through Sunday. Highs will reach the upper 50s Friday, warming to near 68°F Saturday under bright skies. Light winds and clear afternoons make this weekend ideal for outdoor events, last-minute yard cleanup, or local trick-or-treat festivities across Ada, Canyon, and Gem counties.
By Sunday, partly sunny skies return with temperatures near 60°F, signaling the start of a gradual transition. Clouds will thicken Monday, and a weak system sliding in from the Pacific may bring the Treasure Valley’s first early-November rain showers by Monday night or Tuesday. Accumulations will be light, but the change marks the next pattern shift as the region drifts toward winter’s doorstep.
For now, Boise sits in one of fall’s best windows—warm afternoons, crisp evenings, and dry roads for weekend travelers along I-84 and Highway 55. Residents planning early holiday decorating or outdoor work should take advantage of this stable stretch before wetter weather returns.
Daylight Saving Time ends at 2 a.m. Sunday, meaning an extra hour of rest before the clouds roll in next week.
Five-Day Forecast for Boise, ID:
Fri: 58/35 – Mostly sunny; calm, comfortable afternoon.
Sat: 68/47 – Bright and mild; perfect fall warmth.
Sun: 60/38 – Partly sunny; slight cooling late.
Mon: 63/47 – Mostly sunny; clouds increasing by evening.
Tue: 62/49 – Mostly cloudy; light rain possible early.
