National Weather Service United States Department of Commerce

Dangerous Heat in the West; Coastal Flooding & High Rip Current Risk into the Weekend on the East Coast; Flash Flooding Possible in the Southeast

A dangerous, record heat wave continues for the Desert Southwest and the Central Valley of California through Saturday, and the Pacific Northwest through Tuesday. Coastal flooding is expected through tonight at high tide along the Eastern Seaboard from Erin, while the high rip current risk and dangerous surf continue through the weekend. Flash flooding possible today in Georgia and South Carolina. Read More >

Click a location below for detailed forecast.

Last Map Update: Fri, Aug 22, 2025 at 8:42:18 am MDT

🌫️ Degrading Air Quality from Wildfire Smoke 🌫️ Wildfire smoke will cause degraded air quality across primarily west-central/southwest Montana (along and south of Highway 200) and north-central Idaho. Conditions will likely worsen through the weekend, especially through north central Idaho. ✅ Check your local air quality: fire.airnow.gov ✅ Limit outdoor activities, especially strenuous exercise during smoky periods ✅ Consider wearing a mask outdoors ✅ Stay indoors with windows and doors closed; use air conditioning and filtration if possible Take precautions to protect your health and check on those who may be more sensitive to smoke, including children, the elderly, and those with respiratory conditions.
Staying cool this week is essential with heat expected to ramp up once again across western Montana and north-central Idaho beginning Saturday (August 23rd)! Remember to take breaks in A/C or shade, avoid outdoor activities during peak heat, and stay hydrated. Learn heat illness signs and never leave kids or pets unattended in cars.

 

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