Billings, MT

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Fall Climatological Frost/Freeze Probabilities

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Last Map Update: Wed, Sep 16, 2026 at 4:46:21 pm MDT

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National Weather Service Great Falls, MT

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Probability of a Half Inch of Rain

A slow moving weather system is expected to bring periodic showers and some thunderstorms Thursday to Sunday. Locally heavy rain is possible. A few thunderstorms could be strong on Friday. Stay aware if you have outdoor plans.

A slow-moving weather system is expected to bring periods of showers and some thunderstorms later this week. Locally heavy rain is possible. This map shows the probability of at least 0.50” of rain Friday through Saturday night. Make sure to plan your outdoor activities accordingly.