Heat Builds in the West; Extremely Critical Fire Weather in the Northwest

A heat wave over the Southwest will intensify this week, peaking and expanding into the Intermountain West and northern High Plains this weekend. Critical to extremely critical fire weather conditions are forecast from the Northwest and the northern Great Basin this weekend. Particularly Dangerous Situation Red Flag Warnings have been issued. Read More >

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Last Map Update: Sat, Aug 1, 2026 at 4:02:33 pm MDT

Watches, Warnings & Advisories

National Weather Service Great Falls, MT

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High Wind Warning

Extreme Heat Warning

Red Flag Warning

Heat Advisory

Lake Wind Advisory

Air Quality Alert

Hazardous Weather Outlook

Extreme Heat Warning

Red Flag Warning

An Extreme Heat Warning is in effect for Saturday thru Sunday for all of northeast Montana. Highs Saturday will range the mid 90s to near 110 in the Missouri Breaks while highs will be in the 90s Sunday. Lows Saturday night will have trouble dropping below 70 in most areas. A cold front Sunday will bring much cooler temperatures by Monday. Stay indoors and limit outside work. If working outside stay hydrated and take frequent breaks.

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Heat Builds in the West; Extremely Critical Fire Weather in the Northwest

NWS Forecast Office Glasgow, MT