Dangerous Heat over the South-Central and Southwest U.S. Through Next Week

Dangerous heat persists across the Desert Southwest through this weekend and across the Southern Plains and Lower Mississippi Valley through at least the middle of next week. Numerous daily record high temperatures are expected through at least Tuesday for much of Texas and Oklahoma as well as portions of Louisiana, New Mexico, and Arizona. Read More >

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Last Map Update: Sat, Aug 22, 2026 at 4:24:15 am MDT

Watches, Warnings & Advisories

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National Weather Service Great Falls, MT

Red Flag Warning

Heat Advisory

Fire Weather Watch

Thunderstorms Saturday

Widespread thunderstorm activity on Saturday will result in areas of gusty winds, heavy rain, hail, and frequent lightning. There will be about a 5% chance for storms to become severe. As far as rainfall is concerned, thunderstorms in northwest Montana will be drier, introducing better chances for new fire starts. In north-central Idaho and southwest Montana, more moisture will be available, and there will be about a 5% chance for excessive rainfall causing localized flash flooding.