Severe Thunderstorms in the Central Plains and Lower Missouri Valley; Heat Continues in the Southeast and Southwest

Severe thunderstorms capable of large hail and damaging wind gusts are forecast to impact the central Plains into the Lower Missouri Valley through this afternoon. Dangerous heat persists across the southern Plains, Southeast U.S. and Puerto Rico this week, and will return to the Southwest today. Read More >

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Last Map Update: Tue, Aug 18, 2026 at 6:34:19 pm MDT

Watches, Warnings & Advisories

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National Weather Service Great Falls, MT

Severe Thunderstorm Watch

Red Flag Warning

Special Weather Statement

Daily Afternoon Thunderstorms

The weather while rather benign this week will continue to produce daily afternoon thunderstorms. These storms will be capable of brief but heavy rain and gusty outflow winds. The end of the week warms up with tropical moisture surging into the region Friday. The question now is too much moisture and cloudy and cool Saturday or sufficient afternoon heating to produce area wide showers and thunderstorms.