First Alert 48 Hour Forecast

A Red Flag Warning has been issued for the Salmon, Challis, and Sawtooth National Forests. Wednesday evening thunderstorms will produce 45 mph winds gust which could create rapid fire growth along with lightning strikes.

Moisture in the mid and upper levels of the atmosphere along with surface heating Wednesday afternoon and evening are combining to bring isolated showers and storms to western Montana.  These will diminish by sunset with partly cloudy skies overnight.  Lows in the 50s.

Continued hot weather on Thursday with partly sunny skies.  Highs will warm into the upper 80s in Butte and Bozeman to the upper 90s in Missoula.  Triple digit heat is possible around Eureka and Libby in northwest Montana.  By afternoon, isolated showers and storms are going to be  possible, especially around Butte and Bozeman.  A slight chance elsewhere.

A stronger wave of energy and moisture will move through the region Friday and Saturday.  Each afternoon there will be a chance of showers and storms area wide, with lightning a concern for outdoor enthusiasts.  Highs in the 80s to lower 90s.

mark heyka Watch Chief Meteorologist Mark Heyka weeknights on the NEWS AT 5, 6 and 10. More Details

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First Alert Meteorologists

mark heyka

Mark Heyka

Mark Heyka received a B.A. in broadcast journalism from Washburn University in Topeka, Kansas.

brooke foster

Brooke Foster

Brooke Foster joined the NBC Montana team in March of 2006.

Matt Gray

Matt Gray

Matt joined the NBC Montana weather team in July 2013 after graduating with a Bachelor of Science in meteorology.


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