National Weather Service United States Department of Commerce

Dangerous Heat in the Central and Eastern U.S.

A significant and dangerous heat wave that began this weekend will expand from the Central U.S. into the Eastern U.S and linger through much of the work week. Numerous daily record highs and warm lows are likely. There is also a severe weather and excessive rainfall potential for portions of the Great Plains and Upper Midwest/Great Lakes early this week. Read More >

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Last Map Update: Sun, Jun 22, 2025 at 1:20:16 pm MDT

Widespread valley rain and mountain snow across the Northern Rockies this weekend thanks to a seasonably-cold closed low moving through the region. Temperatures will be much cooler compared to recent (even compared to historical records for this time of year). Hazardous backcountry and road travel is likely in high elevation terrain.
Frost is possible on Monday morning. Temperatures are expected to dip into the low to mid 30s across parts of western Montana and higher valleys of north-central Idaho early Monday morning. Tips: Cover outdoor plants overnight, and move potted plants indoors if possible.

 

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