Dangerous Heat and Heavy Rainfall into the Weekend

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend. Heat Advisories remain in effect. Heavy to excessive rainfall occurring at times through the weekend could bring areas of flooding to parts of the northern Rockies, upper Midwest, central Great Lakes, and southern New England. Read More >

Click a location below for detailed forecast.

Last Map Update: Sat, Sep 19, 2026 at 7:00:12 am MDT

Watches, Warnings & Advisories

National Weather Service Great Falls, MT

Zoom Out

Flash Flood Watch

Dense Fog Advisory

Flood Watch

Special Weather Statement

Hazardous Weather Outlook

Hydrologic Outlook

Flood Watch Today thru Sunday

A Flood Watch has been issued for today, tonight, and Sunday for parts of northeast Montana including Petroleum, Garfield, Dawson, Prairie and Wibaux Counties. Heavy rain is anticipated to cause impacts such as hazardous travel conditions and flooding in low-lying areas. Hydroplaning on highways and impassibility on gumbo-roads may be possible. Have multiple ways of receiving alerts. Remember, turn around, don't drown!