Areas of Excessive Rainfall and Dangerous Heat

Heavy to severe thunderstorms may bring areas of excessive rainfall and flooding over parts of the southern Plains through Friday. Hot to dangerously hot temperatures are forecast again across portions of the Pacific Northwest and southern Great Basin Tuesday. Read More >

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Last Map Update: Tue, Jun 10, 2025 at 4:30:11 am MDT

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National Weather Service Great Falls, MT

Heat Advisory

Hazardous Weather Outlook

Hot through Tuesday

Thunderstorms Tuesday into the Weekend

Abnormally high temperatures will impact the Northern Rockies into Tuesday. Forecasted highs for the valleys of north central Idaho and western Montana range from the low 90s to low 100s (lower valleys of north-central Idaho) with today likely seeing the hottest temperatures. If you are planning to spend time outside, remember to drink plenty of water, take frequent breaks, and avoid strenuous activity during the afternoon. While the temperatures may be hot, streams and rivers are still running cold and swift, posing the risk of hypothermia.

Showers and thunderstorms will return to the Northern Rockies Tuesday into the weekend. The storms that develop on Tuesday will be capable of wind gusts in excess of 40 mph. While the stronger storms on Wednesday afternoon could produce heavy rain, small hail and gusty winds. Thursday onward storms appear to generate light to moderate rainfall with low probability of small hail. The main areas of concern will be along the Continental Divide and also south of the Highway 12 corridor. If you have delicate outdoor objects, consider securing them. And remember, when thunder roars, go indoors!

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Areas of Excessive Rainfall and Dangerous Heat

NWS Forecast Office Missoula, MT