Wildfire Smoke and Severe Thunderstorms in the East; Monsoon Thunderstorms in the Southwest

Wildfire smoke continues to impact air quality from the Great Lakes region into New England and the Mid-Atlantic today with widespread Air Quality Alerts in effect. Severe thunderstorms are expected across portions of the Ohio Valley and Lower Great Lakes into the Mid-Atlantic and Northeast, this afternoon into the evening. Monsoonal thunderstorms may bring areas of flooding to the Southwest. Read More >

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Last Map Update: Sat, Jul 18, 2026 at 2:34:35 pm MDT

Watches, Warnings & Advisories

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National Weather Service Great Falls, MT

Severe Thunderstorm Warning

Red Flag Warning

Flood Watch

Special Weather Statement

Air Quality Alert

Thunderstorms this Afternoon and Evening

Another round of thunderstorms is anticipated this afternoon and evening. The stronger storms are most likely between 1pm and 9 PM this evening. Threats with storms today will be gusty outflow winds of 50 mph or greater, small hail, lightning, and brief very heavy rainfall.