Today will be an active thunderstorm day for the Northern Rockies, with a few storms capable of producing very heavy downpours, hail, frequent lightning, and gusty winds, according to the National Weather Service in Missoula. The best potential for strong storms will this afternoon/evening and stretch from Central Idaho through Southwest Montana. Those participating in outdoor activities this afternoon and evening should be prepared for quickly changing and inclement conditions.
Strong Thunderstorms Possible In Western Montana Monday

National Weather Service, Missoula