Boise, ID – A mix of snow and rain is expected across Boise and surrounding areas Monday, with forecasters warning of slippery and potentially hazardous travel conditions, particularly along SH-55. According to the National Weather Service, the area will see rain and snow developing Monday morning, with precipitation chances at 90%. Drivers should prepare for snow accumulation at higher elevations, especially along mountain routes like Goose Creek Summit and Smith’s Ferry. Gusty southeast winds up to 20 mph may add to travel difficulties.