Heat Builds in the West; Severe Thunderstorms and Heavy Rain in the Upper Midwest and Mid-Mississippi Valley; Extremely Critical Fire Weather in the Northwest on Saturday

A heat wave over the Southwest will intensify this week, peaking and expanding into the Intermountain West and northern High Plains this weekend. Severe thunderstorms and heavy rainfall are expected over parts of the Upper Midwest to mid-Mississippi Valley today. Critical to extremely critical fire weather conditions from the Northwest and the northern Great Basin on Saturday and Sunday. Read More >

Click a location below for detailed forecast.

Last Map Update: Fri, Jul 31, 2026 at 9:58:08 am MDT

Watches, Warnings & Advisories

National Weather Service Great Falls, MT

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National Weather Service Western and Central Wyoming

Red Flag Warning

Heat Advisory

High Wind Watch

Extreme Heat Watch

Fire Weather Watch

Air Quality Alert

Hot Weekend; Cooler To Start Next Week

Heat Risk Saturday

Fire Weather Conditions Saturday

Wildfire Smoke

Very hot conditions persist through the weekend, with Saturday being the hottest day. Much cooler conditions are forecast for Monday and Tuesday.

Extreme heat returns Saturday. Take precautions to protect yourself from the heat.

Elevated fire weather conditions are expected Saturday. Please take care not to cause a spark!

Wildfire smoke and hazy skies will impact much of the region through the weekend. 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.