Severe Thunderstorms and Heavy Rainfall for the Southwest; Heat Spreads Across the Center of the Nation

Moisture will continue to move into areas of the West. This will increase showers and thunderstorms coverage and intensity, with the risk of flash flooding and damaging wind gusts. Meanwhile, heat across the Southwest will expand into the center of the nation this weekend into early next week. Trends favor this heat will spread across the Ohio Valley, mid-Atlantic next week. Read More >

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Last Map Update: Sun, Aug 30, 2026 at 9:40:36 am MDT

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National Weather Service Great Falls, MT

There are no watches, warnings, or advisories at this time.

Weekend Outlook: Cooler, Showery, and Breezy

High Elevation Valleys Frost

Say goodbye to the heat for a few days! 📉 This weekend (Aug 29-30) brings a noticeable shift to cooler, showery, and breezy weather across the region. Valley highs will struggle to get out of the upper 60s and 70s. Keep an eye to the sky on Saturday, as scattered thunderstorms from Lemhi County to southwest Montana could pop up bringing brief heavy rain, lightning, gusty winds between 35 and 50 mph, and small hail less than one inch in diameter. Gusty westerly winds between 15 to 25 mph will develop by mid-afternoon on Flathead Lake and continue into the early evening hours. Expect a 1 to 2 foot chop there. If you are in Southwest Montana, expect the most widespread rain through Sunday morning. Have the umbrella ready and check the latest forecast for your specific location on our website before heading outdoors!