National Weather Service Forecast for: Malmstrom Afb MT
Issued by: National Weather Service Great Falls, MT
Updated: 10:01 am MST Nov 1, 2026
 
Today

Today: Rain. Patchy dense fog before 2pm, then patchy dense fog after 5pm. High near 44. North wind 3 to 5 mph. Chance of precipitation is 90%.
Rain and
Patchy Dense
Fog
 Tonight

Tonight: Rain, mainly before 1am. Patchy fog before 8pm. Steady temperature around 39. West wind 3 to 7 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Rain and
Patchy Fog
then Rain
Likely
 Monday

Monday: Mostly cloudy, then gradually becoming sunny, with a high near 54. West southwest wind 6 to 8 mph.
Decreasing
Clouds

 Monday
Night
Monday Night: Mostly clear, with a low around 34. South southwest wind 5 to 9 mph.
Mostly Clear

 Tuesday

Tuesday: Mostly sunny, with a high near 60. Southwest wind around 9 mph.
Mostly Sunny

 Tuesday
Night
Tuesday Night: Mostly cloudy, with a low around 33. Calm wind.
Mostly Cloudy

 Wednesday

Wednesday: Mostly sunny, with a high near 52. Calm wind.
Mostly Sunny

 Wednesday
Night
Wednesday Night: Partly cloudy, with a low around 33. Calm wind becoming south southwest around 6 mph after midnight.
Partly Cloudy

 Thursday

Thursday: Mostly sunny, with a high near 55.
Mostly Sunny
Hi 44 °F Lo 39 °F Hi 54 °F Lo 34 °F Hi 60 °F Lo 33 °F Hi 52 °F Lo 33 °F Hi 55 °F

Dense Fog Advisory
 

Today
 
 Rain. Patchy dense fog before 2pm, then patchy dense fog after 5pm. High near 44. North wind 3 to 5 mph. Chance of precipitation is 90%.
Tonight
 
 Rain, mainly before 1am. Patchy fog before 8pm. Steady temperature around 39. West wind 3 to 7 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday
 
 Mostly cloudy, then gradually becoming sunny, with a high near 54. West southwest wind 6 to 8 mph.
Monday Night
 
 Mostly clear, with a low around 34. South southwest wind 5 to 9 mph.
Tuesday
 
 Mostly sunny, with a high near 60. Southwest wind around 9 mph.
Tuesday Night
 
 Mostly cloudy, with a low around 33. Calm wind.
Wednesday
 
 Mostly sunny, with a high near 52. Calm wind.
Wednesday Night
 
 Partly cloudy, with a low around 33. Calm wind becoming south southwest around 6 mph after midnight.
Thursday
 
 Mostly sunny, with a high near 55.
Thursday Night
 
 Partly cloudy, with a low around 34.
Friday
 
 Mostly sunny, with a high near 54. Breezy.
Friday Night
 
 A slight chance of rain. Mostly cloudy, with a low around 34.
Saturday
 
 Mostly sunny, with a high near 53.

 

Forecast from NOAA-NWS for Malmstrom Afb MT.