Tomorrow's Severe Weather Threat Level is Moderate for West-Central Montana due to very hot temperatures.
Thunderstorms in Southwest Montana Saturday Evening will move slowly to the East-Southeast and dissipate after sunset. Brief periods of heavy rain, gusty winds, and lightning are possible through 11 pm.
Drier air moves in on Sunday and strengthening high pressure means a brutally hot day is ahead. Expect highs to top 100 degrees in Lincoln County and be very close to 100 from Noxon all the way to Missoula. Make sure you're hydrated and wear sun protection to outdoor events such as the Missoula Marathon. Much of West-Central Montana will hit the upper 90s. The Kalispell area will reach the mid 90s. Southwest Montana will hit the upper 80s with the most western parts of the region in the low 90s. A few "popcorn" thunderstorms will appear over Southwest Montana, but will be of little concern compared to the heat.
A storm system moves in on Monday and will produce strong thunderstorms across the region. Expect gusty winds, hail, and frequent lightning with Monday's storms. Beyond Monday a brief cool-down is expected on Tuesday before warming up to well above average temperatures on Wednesday. Another cool period is possible next weekend.