A stretch of exceptional February weather is on the way, with a high pressure ridge building across the Pacific Northwest. Temperatures will rise into the mid-50s on Friday, approaching 60° on Saturday and Sunday in the valley. Light wind and abundant sunshine are expected under the high pressure system. Mountain areas will see temperatures climbing into the 40s.
The McCall Winter Carnival will enjoy fantastic weather, with high temperatures hovering around 40° each afternoon and overnight lows in the upper 10s to lower 20s. However, precipitation will be moving in Sunday night, potentially causing travel impacts on Highways 55 and 95 for those returning from the carnival. Snow levels will be around 4500-5000 feet when the precipitation arrives. Gusty winds are also expected Sunday night into Monday.
Idaho will experience a significant cooldown on Monday, with temperatures 15-20° cooler than Sunday and dropping throughout the day behind a cold front. Rain is expected for the lower valleys, with a brief changeover to snow possible Monday night. Accumulation is expected to be light for the Treasure Valley.
Unsettled weather continues through the middle of next week, especially for the mountains. Tuesday will be the chilliest day, with highs in the 30s and 40s in the valleys and 10s and 20s in the mountains. Towards the end of next week, another high pressure ridge should bring drier conditions.
