National Weather Service United States Department of Commerce

Heavy Rain and Flash Flooding in the West; Heat Expands in the Central U.S.

Monsoonal moisture will produce showers and thunderstorms with heavy rain over parts of the Southwest, Great Basin, and Central Rockies through Monday. Flash flooding is possible, especially in and around burn scars and in areas of steep terrain. Heat will persist across the Central U.S. early this week, spreading into the Ohio Valley and Mid-Atlantic later this week. Read More >

Click a location below for detailed forecast.

Last Map Update: Sat, Sep 5, 2026 at 8:16:26 am MDT

There are no watches, warnings, or advisories at this time.

There is a marginal risk of severe thunderstorms by Sunday evening over much of North Central MT. The main impact from any severe storm will be strong wind gusts and lightning. Plan ahead for the thunderstorm potential.
Heavier rainfall is expected over North Central MT Sunday afternoon into Monday. This image shows the probability of 1 inch of rainfall Sunday night into Monday, with the heaviest rainfall expected over North Central MT.

 

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