A wave of moisture is moving through western Montana, with areas of light rain and drizzle, mainly west of the divide with partly cloudy skies across southwest Montana. The rain will gradually end by midnight, with partly to mostly cloudy skies and lows in the 30s.
A stronger wave of moisture will rotate around a storm in the Pacific on Friday. Widespread rain will develop along and south of I-90 by afternoon, including Missoula, Butte and Bozeman. The rain will spread north into the Kalispell area by evening, with widespread rain and high elevation snow Friday night. Many areas may receive a quarter to a half inch of rain. Highs in the upper 40s to lower 50s on Friday.
Showers again on Saturday, gradually ending by Sunday. Continued cool over the weekend with highs in the 50s. We are still expecting a drier and warmer weather pattern by the middle of next week when highs will warm into the 60s to around 70.