A potent storm system will kick off thunderstorms and periods of heavy rain for western and central Montana on Thursday afternoon, with heavy rain spreading northeast through the evening and overnight. Some storms could produce hail and stronger wind through the afternoon and evening. Skies will be mostly cloudy and highs will be in the 50s and 60s. Friday is a pretty big travel day ahead of Memorial Day Weekend. There will be more clouds and showers up on the Hi-line. Elsewhere, a few thunderstorms will pop in the afternoon and evening. Skies will be partly cloudy with highs in the 60s to near 70. Out of the three holiday days, Saturday will be the most unsettled but it will not be terrible. Skies will be partly cloudy with mostly cloudy skies over southern and eastern Montana. There will be scattered showers, a few thunderstorms, and some high mountain snow mainly over the eastern half of the state. Highs will be in the 50s and 60s, to near 70 around Helena. Sunday will be a gorgeous day for most of the state with mostly sunny skies and highs in the 60s and 70s. There may be a few isolated showers over central and eastern Montana. Memorial Day will be mostly sunny and warmer with highs in the 70s and 80s. It will feel summery for the unofficial start of the new season. Temperatures will stay warm next week with thunderstorms returning Tuesday and Wednesday.
Have a great day,
Curtis Grevenitz
Chief Meteorologist
