Weather
Boise, ID Weather Alert: Mountain Snow Returns Oct. 27
Boise, ID – Residents and travelers across southwest Idaho and southeast Oregon should prepare for scattered rain showers and high elevation snow Tuesday, Oct. 27, as cooler temperatures and unsettled
By Wesley Grant · 2026-10-27T08:33:34.480Z
Boise, ID – Residents and travelers across southwest Idaho and southeast Oregon should prepare for scattered rain showers and high elevation snow Tuesday, Oct. 27, as cooler temperatures and unsettled conditions return to the region. Mountain roads could become slippery where snow develops, particularly at elevations above 5,000 feet.
According to the National Weather Service in Boise, showers are expected from late Tuesday morning through the evening, with the greatest precipitation coverage anticipated across eastern Oregon and west central Idaho.
Snow levels are forecast between 5,000 and 6,000 feet , allowing some higher mountain communities and travel routes to experience light snowfall.
Forecasters expect mountain snow primarily across northeast Oregon and west central Idaho, where passing showers could produce light accumulations.
While significant snowfall totals have not been indicated, even minor accumulations may create slippery conditions on elevated roadways.
Valley communities will experience mostly rain rather than snow.
Afternoon temperatures across lower elevations, including the Boise metropolitan area and surrounding valleys, are expected to range from the 40s to 50s.
Mountain locations will remain considerably colder, with temperatures generally ranging from the 20s to 40s.
The cooler conditions represent a return to more seasonable late October temperatures across the region.
Communities including Boise, Meridian, Nampa and Ontario, Oregon, could encounter passing showers, while higher terrain near McCall and portions of the surrounding mountains may experience snow.
Travelers heading into mountainous areas Tuesday should monitor changing road conditions.
Rain and mountain snow showers could create slick pavement, particularly where temperatures approach freezing or snowfall accumulates on untreated surfaces.
Drivers should allow additional travel time and remain cautious along mountain highways, especially where elevation changes produce rapidly shifting weather conditions.
Outdoor activities, including hiking, camping and hunting trips, could also be affected by rain, colder temperatures and mountain snow showers.
The National Weather Service expects precipitation chances to continue through Tuesday evening, although exact snowfall amounts and individual community rain probabilities were not specified.
Residents should check updated forecasts and Idaho 511 or Oregon TripCheck road information before traveling through higher elevations