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Pacific Trough Brings Showers to Western Montana as Temperatures Begin to Fall

Subtle changes in cloud cover or storm track could tip some valleys into a freeze later this week.

Overview

  • A Pacific trough moving inland is delivering scattered showers and embedded thunderstorms today with occasional sunshine.
  • Precipitation is expected to shift into northwest Montana on Wednesday with generally cloudier skies across the region.
  • High temperatures are forecast to cool from the mid-60s midweek to the upper 50s by the weekend.
  • If clouds thin, pockets of sub-freezing temperatures are possible Thursday and Friday nights in low-lying valleys, with typical cold spots highlighted by forecasters.
  • Models suggest a colder push this weekend that could lower snow levels to around 5,000 feet with light accumulation along the Divide by Monday morning.