Watch For Thunderstorms This Afternoon

Posted at 1:31 PM, Aug 22, 2018
and last updated 2018-08-22 15:31:33-04


SW flow aloft is pushing monsoon moisture up into SW Montana Wednesday afternoon and evening. This is also pushing more wildfire smoke up into the region so look for worsening air quality. The biggest concern Wednesday afternoon and evening is garden variety thunderstorms. This means most storms will be weak but a few stronger storms are possible. Some storms could produce hail and stronger outflow winds and plenty of lightning. Hopefully most storms will also produce some brief moderate to heavy rainfall.

City by City Forecast:

BOZEMAN: LOW: 49°; HIGH FRIDAY: 80°. Isolated thunderstorms are possible for Bozeman Wednesday afternoon into the early evening hours but should diminish after midnight. Not as cool for Thursday and mostly dry.

BUTTE: LOW: 42°; HIGH FRIDAY: 79°. A few isolated storms could fire up this afternoon and evening. Most storms will diminish after sunset. Thursday should be a dry and warm day.

DILLON: LOW: 47°; HIGH FRIDAY: 81°. Dillon and much of Beaverhead county should be watching for afternoon to early evening thunderstorms today. Thursday should be a warm and dry day.

WEST YELLOWSTONE: LOW: 38°; HIGH FRIDAY: 74°. Mostly cloudy and very smoky with building afternoon thunderstorms. Some storms could continue up to midnight. Thursday should be a warmer and mostly dry day.