National Weather Service Forecast for: Malmstrom Afb MT
Issued by: National Weather Service Great Falls, MT
Updated: 1:52 am MDT Jun 30, 2026
 
Today

Today: A slight chance of showers before 3pm, then a slight chance of showers and thunderstorms between 3pm and 5pm.  Mostly sunny, with a high near 74. West southwest wind 9 to 15 mph, with gusts as high as 22 mph.  Chance of precipitation is 20%.
Sunny then
Slight Chance
T-storms
Tonight

Tonight: A slight chance of showers and thunderstorms between 8pm and 9pm.  Partly cloudy, with a low around 52. Southwest wind 3 to 7 mph.  Chance of precipitation is 20%.
Slight Chance
T-storms then
Partly Cloudy
Wednesday

Wednesday: A 30 percent chance of showers and thunderstorms, mainly between 3pm and 4pm.  Partly sunny, with a high near 75. West southwest wind 6 to 8 mph.
Partly Sunny
then Chance
Showers
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 51. South wind 5 to 7 mph.  Chance of precipitation is 20%.
Slight Chance
T-storms then
Partly Cloudy
Thursday

Thursday: Sunny, with a high near 77. Southwest wind 5 to 7 mph.
Sunny

Thursday
Night
Thursday Night: Partly cloudy, with a low around 53. West wind around 6 mph becoming east northeast in the evening.
Partly Cloudy

Friday

Friday: A 20 percent chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 78. South southwest wind around 5 mph becoming light and variable.
Mostly Sunny
then Slight
Chance
T-storms
Friday
Night
Friday Night: A slight chance of showers and thunderstorms before midnight.  Partly cloudy, with a low around 51. Southwest wind 5 to 8 mph.
Slight Chance
T-storms then
Mostly Clear
Independence
Day
Independence Day: Sunny, with a high near 80.
Sunny

Hi 74 °F Lo 52 °F Hi 75 °F Lo 51 °F Hi 77 °F Lo 53 °F Hi 78 °F Lo 51 °F Hi 80 °F

 

Today
 
A slight chance of showers before 3pm, then a slight chance of showers and thunderstorms between 3pm and 5pm. Mostly sunny, with a high near 74. West southwest wind 9 to 15 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.
Tonight
 
A slight chance of showers and thunderstorms between 8pm and 9pm. Partly cloudy, with a low around 52. Southwest wind 3 to 7 mph. Chance of precipitation is 20%.
Wednesday
 
A 30 percent chance of showers and thunderstorms, mainly between 3pm and 4pm. Partly sunny, with a high near 75. West southwest wind 6 to 8 mph.
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 51. South wind 5 to 7 mph. Chance of precipitation is 20%.
Thursday
 
Sunny, with a high near 77. Southwest wind 5 to 7 mph.
Thursday Night
 
Partly cloudy, with a low around 53. West wind around 6 mph becoming east northeast in the evening.
Friday
 
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 78. South southwest wind around 5 mph becoming light and variable.
Friday Night
 
A slight chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 51. Southwest wind 5 to 8 mph.
Independence Day
 
Sunny, with a high near 80.
Saturday Night
 
Mostly clear, with a low around 53.
Sunday
 
Sunny, with a high near 86.
Sunday Night
 
Mostly clear, with a low around 56.
Monday
 
Sunny, with a high near 85.

 

Forecast from NOAA-NWS for Malmstrom Afb MT.