National Weather Service Forecast for: Malmstrom Afb MT
Issued by: National Weather Service Great Falls, MT
Updated: 2:46 pm MDT Jul 16, 2026
 
Tonight

Tonight: A chance of showers and thunderstorms before midnight, then a slight chance of showers between midnight and 1am. Partly cloudy, with a low around 62. East wind 8 to 13 mph becoming light and variable after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 30%.
Chance
Showers

 Friday

Friday: A 20 percent chance of showers and thunderstorms after 4pm. Some of the storms could be severe. Sunny, with a high near 95. Calm wind becoming east southeast 5 to 8 mph in the afternoon.
Sunny then
Severe
T-Storms

 Friday
Night
Friday Night: Showers and thunderstorms likely before 3am, then a slight chance of showers between 3am and 4am. Some of the storms could be severe. Mostly cloudy, with a low around 63. Southeast wind 5 to 9 mph becoming southwest in the evening. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Severe
T-Storms
then Slight
Chance
Showers
 Saturday

Saturday: Sunny and hot, with a high near 96. West southwest wind 5 to 7 mph.
Hot


 Saturday
Night
Saturday Night: A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Partly cloudy, with a low around 63. South wind around 9 mph. Chance of precipitation is 40%.
Chance
T-storms then
Mostly Clear

 Sunday

Sunday: Sunny and hot, with a high near 96. South southwest wind 5 to 11 mph, with gusts as high as 23 mph.
Hot


 Sunday
Night
Sunday Night: Mostly clear, with a low around 58. West southwest wind 5 to 13 mph, with gusts as high as 21 mph.
Mostly Clear


 Monday

Monday: Sunny, with a high near 86. West northwest wind 5 to 9 mph becoming northeast in the afternoon.
Sunny


 Monday
Night
Monday Night: Partly cloudy, with a low around 60.
Partly Cloudy
Lo 62 °F Hi 95 °F Lo 63 °F Hi 96 °F Lo 63 °F Hi 96 °F Lo 58 °F Hi 86 °F Lo 60 °F

 

Tonight
 
 A chance of showers and thunderstorms before midnight, then a slight chance of showers between midnight and 1am. Partly cloudy, with a low around 62. East wind 8 to 13 mph becoming light and variable after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 30%.
Friday
 
 A 20 percent chance of showers and thunderstorms after 4pm. Some of the storms could be severe. Sunny, with a high near 95. Calm wind becoming east southeast 5 to 8 mph in the afternoon.
Friday Night
 
 Showers and thunderstorms likely before 3am, then a slight chance of showers between 3am and 4am. Some of the storms could be severe. Mostly cloudy, with a low around 63. Southeast wind 5 to 9 mph becoming southwest in the evening. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday
 
 Sunny and hot, with a high near 96. West southwest wind 5 to 7 mph.
Saturday Night
 
 A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Partly cloudy, with a low around 63. South wind around 9 mph. Chance of precipitation is 40%.
Sunday
 
 Sunny and hot, with a high near 96. South southwest wind 5 to 11 mph, with gusts as high as 23 mph.
Sunday Night
 
 Mostly clear, with a low around 58. West southwest wind 5 to 13 mph, with gusts as high as 21 mph.
Monday
 
 Sunny, with a high near 86. West northwest wind 5 to 9 mph becoming northeast in the afternoon.
Monday Night
 
 Partly cloudy, with a low around 60.
Tuesday
 
 Mostly sunny, with a high near 87.
Tuesday Night
 
 A chance of showers and thunderstorms. Mostly cloudy, with a low around 61.
Wednesday
 
 A slight chance of showers and thunderstorms. Mostly sunny, with a high near 89.
Wednesday Night
 
 A chance of showers and thunderstorms. Mostly cloudy, with a low around 63.
Thursday
 
 A chance of showers and thunderstorms. Mostly sunny, with a high near 90.

 

Forecast from NOAA-NWS for Malmstrom Afb MT.