Watch For Thunderstorms Monday Afternoon & Evening Butte

Posted at 1:00 PM, May 21, 2018
and last updated 2018-05-21 15:00:15-04

City by City Forecast:

BOZEMAN: LOW: 45°; HIGH TUESDAY: 70°. Scattered afternoon thunderstorms likely Monday for Bozeman and surrounding areas. Most storms should diminish after sunset. A few storms could be on the stronger side with brief heavy rain, small hail, frequent lightning and gusty outflow winds. This pattern is likely to re-develop again Tuesday afternoon.

BUTTE: LOW: 43°; HIGH TUESDAY: 68°. Storm clouds started building over Butte at noon Monday and storms will be passing through the Mining City up to around 10 pm Monday night. Storms should diminish overnight but re-develop again Tuesday afternoon.

DILLON: LOW: 44°; HIGH TUESDAY: 70°. Mostly cloudy skies started developing around noon Monday and with good surface heating and lift look for several thunderstorms to push through Beaverhead County into this evening. Overnight storms will be ending but this pattern will again produce afternoon thunderstorms Tuesday.

WEST YELLOWSTONE: LOW: 33°; HIGH TUESDAY: 67°. Showers and thunderstorms are likely to hit West Yellowstone Monday afternoon and early evening and more storms will be rolling through by Tuesday afternoon.


This week’s weather pattern is a classic for late May. Ample pacific moisture moving in from the WSW will keep dew point temperatures in the 40s and 50s which means good potential storm energy. Surface heating is a little stronger this time of year adding additional lift in the afternoon hours. Look for scattered showers and stronger thunderstorms daily through the end of the week. Biggest concerns is locally heavy rainfall from slower moving storms. Other impacts will be frequent lightning, gusty winds and small hail. When thunderstorms approach your area seek shelter.