Extreme Heat and Excessive Rainfall Today

Dangerous and extreme heat will remain across portions of the southern U.S. through the weekend. A heat wave over the Southwest U.S. will intensify this week, peaking and expanding into the Intermountain West and northern High Plains this weekend. Multiple rounds of thunderstorms will produce heavy to excessive rainfall with significant flash flooding across portions of southern New England. Read More >

Click a location below for detailed forecast.

Last Map Update: Wed, Jul 29, 2026 at 9:20:33 pm MDT

Watches, Warnings & Advisories

National Weather Service Great Falls, MT

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National Weather Service Western and Central Wyoming

Flash Flood Warning

Flood Advisory

Fire Weather Watch

Special Weather Statement

Air Quality Alert

Hazardous Weather Outlook

Hot Conditions Continue

Thursday's Severe Thunderstorm Outlook

HeatRisk (Saturday)

Wildfire Smoke

Hot weather continues into this weekend with Saturday being the hottest day of the stretch. A cooldown to near or below average temps is forecast to start next week.

Isolated to scattered thunderstorms are expected this afternoon and evening. A few storms in southeast Montana could be severe and produce strong wind gusts to 65 mph. Hail and heavy rainfall are also possible. The risk of severe weather is greatest over far eastern Montana into the western Dakotas, but storms further west could produce locally gusty winds as well.

Very hot temperatures continue. Now is your time to prepare for the heat!

Wildfire smoke will impact much of the region this week, though temporary improvements are likely at times. There is potential for an increase in surface smoke and poorer air quality behind cold fronts Saturday night and Sunday night. For real time air quality, visit airnow.gov.