Multi-Day Heavy Rain Event in the Four Corners; Soggy Sunday Expected in Florida

A series of Pacific storm systems will bring widespread showers, heavy rain, and a flash flooding threat across the Four Corners region this weekend. Ex-Typhoon Champi will approach the Alaskan West Coast bringing localized gusty winds and heavy precipitation. A wet and unsettled weekend is expected across southern Florida with rain expected across the entire peninsula by Sunday. Read More >

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Last Map Update: Sat, Oct 31, 2026 at 12:32:30 am MDT

Watches, Warnings & Advisories

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National Weather Service Great Falls, MT

Dense Fog Advisory

Light Snow Mountain Pass Snow This Weekend

Halloween Trick-or-Treat Forecast

Minor travel impacts are expected late Saturday night through Sunday night as another system brings light snow to mountain passes across Idaho County, Lemhi County, and Southwest Montana. Snow levels may drop as low as 5,000 feet, producing 2 to 5 inches of slushy accumulation on key routes including Lost Trail, Homestake, MacDonald, and Bannock passes. Wintry conditions may extend into high-elevation valleys by Sunday night. Motorists should prepare for slick surfaces, particularly during the overnight and early morning hours.

Parents, it’s time to finalize the costume layers! 👻 If you're heading out to trick-or-treat between 6 PM and 10 PM tomorrow night, expect chilly temperatures hovering in the upper 30s and mid-40s. While Kalispell and Missoula are looking mostly dry during peak candy-collecting hours, folks in Butte may want an umbrella to protect those costumes from incoming rain showers. Take a look at the graphic for the exact breakdown in your city, bundle up, and stay safe out there! 🎃

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Multi-Day Heavy Rain Event in the Four Corners; Soggy Sunday Expected in Florida

NWS Forecast Office Missoula, MT