Heavy Rainfall in South Florida; Active Weather in the West

A stalled front will continue to bring additional heavy rainfall potential over the next few days across southern Florida, with localized and urban flooding possible. A strong Pacific storm will bring scattered showers and thunderstorms across the Northern Great Basin, the Rockies and into the Southwest through Saturday. Heavy rainfall may result in isolated flash flooding near burn scars. Read More >

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Last Map Update: Thu, Sep 11, 2025 at 12:32:57 am MDT

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National Weather Service Great Falls, MT

Flash Flood Watch

Special Weather Statement

Air Quality Alert

Hazardous Weather Outlook

Thunderstorms Through Thursday

Cooler and Showery to End the Week

Planning to be outdoors today or Thursday across the Northern Rockies? Scattered showers and thunderstorms are expected, especially during the afternoon and evening hours. Lightning, locally intense rainfall, and gusty outflow winds will be the primary concerns. Thunderstorms today will mainly focus through north central Idaho, while on Thursday western Montana will be the higher focus for storms.

A cooler and showery period is expected across the region from Thursday, September 11th through Sunday, September 14th. Here’s what you can expect: 🌡️ Cooler Temperatures: Highs will return to more seasonable levels, with most valleys seeing temperatures in the upper 60s to 70s. 🌧️ Significant Rain Event: Confidence is increasing for a beneficial rain event, especially Thursday through Friday. -50 to 70% Chance of seeing 0.50′′ or more of rain for North-Central Idaho, West-Central Montana, and Northwest Montana. -10 to 30% Chance for Southwest Montana and Lemhi County, Idaho. -There is a low (20-30%) chance for rainfall totals to exceed 1.00′′ in parts of North-Central Idaho and Northwest Montana. 🌬️ Improving Air Quality: The best news for many will be the significant improvement in air quality as this system helps to clear out lingering wildfire smoke. Stay tuned for updates as this system approaches!

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Heavy Rainfall in South Florida; Active Weather in the West

NWS Forecast Office Missoula, MT