National Weather Service Forecast for: Shelby MT
Issued by: National Weather Service Great Falls, MT
Updated: 4:32 am MDT May 26, 2026
 
Today

Today: A 20 percent chance of showers after 5pm.  Increasing clouds, with a high near 92. Light and variable wind becoming east southeast 12 to 17 mph in the morning. Winds could gust as high as 28 mph.
Mostly Sunny
then Slight
Chance
Showers
Tonight

Tonight: Showers and thunderstorms before midnight, then a slight chance of showers between midnight and 4am.  Low around 55. East wind 8 to 18 mph becoming west northwest after midnight. Winds could gust as high as 29 mph.  Chance of precipitation is 80%.
Showers then
Slight Chance
Showers
Wednesday

Wednesday: A slight chance of showers between 11am and noon, then a chance of showers and thunderstorms after noon.  Partly sunny, with a high near 84. Northwest wind around 10 mph becoming east southeast in the afternoon. Winds could gust as high as 18 mph.  Chance of precipitation is 40%.
Slight Chance
Showers then
Chance
T-storms
Wednesday
Night
Wednesday Night: A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight.  Partly cloudy, with a low around 54. South southeast wind 5 to 9 mph becoming north northwest after midnight.  Chance of precipitation is 40%.
Chance
Showers then
Partly Cloudy
Thursday

Thursday: A 20 percent chance of showers after noon.  Sunny, with a high near 88. Northwest wind 5 to 7 mph becoming east northeast in the afternoon.
Sunny then
Slight Chance
Showers
Thursday
Night
Thursday Night: A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight.  Partly cloudy, with a low around 56. East wind 5 to 10 mph becoming light and variable  after midnight.  Chance of precipitation is 30%.
Chance
Showers then
Partly Cloudy
Friday

Friday: A 30 percent chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 89. Light and variable wind becoming southeast 6 to 11 mph in the afternoon. Winds could gust as high as 20 mph.
Mostly Sunny
then Chance
Showers
Friday
Night
Friday Night: A chance of showers and thunderstorms before midnight, then a slight chance of rain after midnight.  Mostly cloudy, with a low around 52. South wind 9 to 11 mph becoming northwest in the evening. Winds could gust as high as 20 mph.
Chance
Showers

Saturday

Saturday: A chance of rain, then showers and possibly a thunderstorm after noon.  Mostly cloudy, with a high near 71.
Showers

Hi 92 °F Lo 55 °F Hi 84 °F Lo 54 °F Hi 88 °F Lo 56 °F Hi 89 °F Lo 52 °F Hi 71 °F

 

Today
 
A 20 percent chance of showers after 5pm. Increasing clouds, with a high near 92. Light and variable wind becoming east southeast 12 to 17 mph in the morning. Winds could gust as high as 28 mph.
Tonight
 
Showers and thunderstorms before midnight, then a slight chance of showers between midnight and 4am. Low around 55. East wind 8 to 18 mph becoming west northwest after midnight. Winds could gust as high as 29 mph. Chance of precipitation is 80%.
Wednesday
 
A slight chance of showers between 11am and noon, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 84. Northwest wind around 10 mph becoming east southeast in the afternoon. Winds could gust as high as 18 mph. Chance of precipitation is 40%.
Wednesday Night
 
A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Partly cloudy, with a low around 54. South southeast wind 5 to 9 mph becoming north northwest after midnight. Chance of precipitation is 40%.
Thursday
 
A 20 percent chance of showers after noon. Sunny, with a high near 88. Northwest wind 5 to 7 mph becoming east northeast in the afternoon.
Thursday Night
 
A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Partly cloudy, with a low around 56. East wind 5 to 10 mph becoming light and variable after midnight. Chance of precipitation is 30%.
Friday
 
A 30 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 89. Light and variable wind becoming southeast 6 to 11 mph in the afternoon. Winds could gust as high as 20 mph.
Friday Night
 
A chance of showers and thunderstorms before midnight, then a slight chance of rain after midnight. Mostly cloudy, with a low around 52. South wind 9 to 11 mph becoming northwest in the evening. Winds could gust as high as 20 mph.
Saturday
 
A chance of rain, then showers and possibly a thunderstorm after noon. Mostly cloudy, with a high near 71.
Saturday Night
 
Rain likely, mainly before midnight. Mostly cloudy, with a low around 44.
Sunday
 
A chance of rain and thunderstorms. Partly sunny, with a high near 68.
Sunday Night
 
A chance of rain. Partly cloudy, with a low around 43.
Monday
 
A chance of rain. Partly sunny, with a high near 67.

 

Forecast from NOAA-NWS for Shelby MT.