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

Today: Showers and possibly a thunderstorm, mainly before 4pm, then a chance of showers and thunderstorms after 4pm. High near 75. Light and variable wind becoming south southeast 9 to 14 mph in the morning. Winds could gust as high as 24 mph. Chance of precipitation is 80%.
Slight Chance
Showers then
Showers
 Tonight

Tonight: A 20 percent chance of showers and thunderstorms before 9pm. Partly cloudy, with a low around 43. Northeast wind 5 to 9 mph becoming light and variable after midnight.
Slight Chance
T-storms then
Partly Cloudy
 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 79. Light and variable wind becoming northeast 5 to 9 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 40%.
Slight Chance
Showers then
Chance
T-storms
 Wednesday
Night
Wednesday Night: A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and midnight. Partly cloudy, with a low around 45. East northeast wind 5 to 10 mph becoming light and variable after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 20%.
Slight Chance
T-storms then
Mostly Clear
 Thursday

Thursday: Sunny, with a high near 86. Light and variable wind becoming southeast 8 to 13 mph in the afternoon. Winds could gust as high as 24 mph.
Sunny

 Thursday
Night
Thursday Night: Partly cloudy, with a low around 46. South southeast wind 5 to 15 mph, with gusts as high as 26 mph.
Partly Cloudy

 Friday

Friday: Mostly sunny, with a high near 80. South southeast wind 5 to 10 mph increasing to 12 to 17 mph in the afternoon. Winds could gust as high as 30 mph.
Mostly Sunny

 Friday
Night
Friday Night: A slight chance of rain after midnight. Mostly cloudy, with a low around 44. South wind 8 to 17 mph, with gusts as high as 29 mph.
Mostly Cloudy
then Slight
Chance Rain
 Saturday

Saturday: A chance of rain, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 67.
Showers
Likely
Hi 75 °F Lo 43 °F Hi 79 °F Lo 45 °F Hi 86 °F Lo 46 °F Hi 80 °F Lo 44 °F Hi 67 °F

 

Today
 
 Showers and possibly a thunderstorm, mainly before 4pm, then a chance of showers and thunderstorms after 4pm. High near 75. Light and variable wind becoming south southeast 9 to 14 mph in the morning. Winds could gust as high as 24 mph. Chance of precipitation is 80%.
Tonight
 
 A 20 percent chance of showers and thunderstorms before 9pm. Partly cloudy, with a low around 43. Northeast wind 5 to 9 mph becoming light and variable after midnight.
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 79. Light and variable wind becoming northeast 5 to 9 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 40%.
Wednesday Night
 
 A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and midnight. Partly cloudy, with a low around 45. East northeast wind 5 to 10 mph becoming light and variable after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 20%.
Thursday
 
 Sunny, with a high near 86. Light and variable wind becoming southeast 8 to 13 mph in the afternoon. Winds could gust as high as 24 mph.
Thursday Night
 
 Partly cloudy, with a low around 46. South southeast wind 5 to 15 mph, with gusts as high as 26 mph.
Friday
 
 Mostly sunny, with a high near 80. South southeast wind 5 to 10 mph increasing to 12 to 17 mph in the afternoon. Winds could gust as high as 30 mph.
Friday Night
 
 A slight chance of rain after midnight. Mostly cloudy, with a low around 44. South wind 8 to 17 mph, with gusts as high as 29 mph.
Saturday
 
 A chance of rain, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 67.
Saturday Night
 
 Showers likely and possibly a thunderstorm before midnight, then a chance of rain after midnight. Mostly cloudy, with a low around 40.
Sunday
 
 A chance of rain and thunderstorms. Partly sunny, with a high near 70.
Sunday Night
 
 A slight chance of showers and thunderstorms. Partly cloudy, with a low around 40.
Monday
 
 A slight chance of showers and thunderstorms. Mostly sunny, with a high near 72.

 

Forecast from NOAA-NWS for Dillon MT.