National Weather Service United States Department of Commerce

Dangerous Heat and Possible Flooding

Dangerous heat will persist across the Southwest U.S. through Saturday with daytime highs of 110-115°F. Extreme Heat Warnings remain in effect. Dangerous heat will build across the southern Plains again beginning this weekend. Heavy to excessive rain over the Carolinas Friday may lead to isolated areas of flash flooding. Read More >

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Last Map Update: Fri, Aug 28, 2026 at 9:50:24 pm MDT

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!

 

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