Heavy Rainfall and Flooding Threats in the Midwest and Ohio Valley; Heat Continues in the Plains and Southeast

An active pattern will continue to bring heavy to excessive rainfall and flash flooding threats to the Midwest and Ohio Valley over the next couple of days. Dangerous heat continues across the central/southern Plains and Southeast U.S. into next week. There is potential for record-tying/breaking temperatures with many areas forecast to see their hottest temperatures so far this year. Read More >

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Last Map Update: Thu, Aug 13, 2026 at 3:00:15 pm MDT

Watches, Warnings & Advisories

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National Weather Service Great Falls, MT

Flash Flood Watch

Red Flag Warning

Flood Watch

Air Quality Alert

Hydrologic Outlook

Gusty Northeast Winds - Tonight through Thursday

Rainfall Potential - Through Thursday PM

Winds across western Montana will shift to northeast 10-20 mph, gusting to 30 mph at times, tonight through Thursday. Watch for increased wave activity on area lakes.

Scattered showers and thunderstorms will bring localized heavy rainfall and gusty winds to Western Montana and North-Central Idaho starting Wednesday afternoon. The probability of receiving 0.25 inches or more of rainfall varies across the region through Thursday night: Butte: 70% Salmon: 64% Missoula: 37% Kalispell: 15% Grangeville: 0% Note on 0% Probabilities: A 0% value on this map does not necessarily mean no rain will fall at all. It indicates a low to near-zero chance of reaching the 0.25-inch threshold. Lighter or more brief / less frequent showers remain possible in these areas.