National Weather Service United States Department of Commerce

Heat Wave and Severe Thunderstorms this Independence Day

A prolonged, dangerous heat wave will persist through the Independence Day weekend across the Ohio Valley, Midwest, and Mid-Atlantic. Numerous temperature records are expected. Clusters of severe thunderstorms will move across parts of the Allegheny Plateau into Mid Atlantic this Independence Day, with potential for widespread damaging winds. Additional severe thunderstorms in the Great Plains. Read More >

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Last Map Update: Sat, Jul 4, 2026 at 12:22:32 pm MDT

Daytime highs will reach the 80s to near 90s under mostly sunny skies. Expect breezy conditions in Northwest Montana and notably lower humidity region-wide. Evening conditions for fireworks viewing will be mostly clear.
Heads up for Monday! 🌩️ We are tracking thunderstorms expected to impact primarily north central Idaho and west-central/southwest Montana during the afternoon and evening. If you have outdoor plans or live in a flood-prone area, here are the main threats to prepare for: 🌧️ Heavy Rain: Rates of 0.50–0.75” per hour could lead to localized debris flows. ⚡ Lightning: A serious danger to those recreating outside, with the potential to ignite new fire starts. 💨 Gusty Winds: Gusts of 40 to 50 mph are possible, especially across southwest Montana. Secure loose outdoor items and know where you will take shelter if a storm approaches your area. Another round of storms is possible on Tuesday.

 

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