National Weather Service Forecast for: 5 Miles NNW Helena MT
Issued by: National Weather Service Great Falls, MT
Updated: 7:41 pm MDT Jun 18, 2026
 
Tonight

Tonight: Mostly clear, with a low around 43. North wind 9 to 14 mph becoming light northwest after midnight. Winds could gust as high as 23 mph.
Mostly Clear

 Juneteenth

Juneteenth: Mostly sunny, with a high near 76. Calm wind becoming east northeast 5 to 7 mph in the afternoon.
Mostly Sunny

 Friday
Night
Friday Night: Partly cloudy, with a low around 47. North northeast wind 5 to 7 mph becoming calm after midnight.
Partly Cloudy

 Saturday

Saturday: A chance of showers between noon and 3pm, then a chance of showers and thunderstorms after 3pm. Partly sunny, with a high near 81. Calm wind becoming west southwest 5 to 7 mph in the afternoon. Chance of precipitation is 30%.
Partly Sunny
then Chance
Showers
 Saturday
Night
Saturday Night: A 30 percent chance of showers before midnight. Partly cloudy, with a low around 49. West wind 6 to 9 mph.
Chance
Showers then
Partly Cloudy
 Sunday

Sunday: Sunny, with a high near 74. Light west northwest wind becoming northwest 6 to 11 mph in the morning. Winds could gust as high as 21 mph.
Sunny

 Sunday
Night
Sunday Night: Partly cloudy, with a low around 44. North northwest wind 12 to 17 mph decreasing to 6 to 11 mph after midnight. Winds could gust as high as 29 mph.
Partly Cloudy

 Monday

Monday: Sunny, with a high near 70. Light north northwest wind becoming north northeast 5 to 9 mph in the afternoon. Winds could gust as high as 20 mph.
Sunny

 Monday
Night
Monday Night: Mostly clear, with a low around 43.
Mostly Clear
Lo 43 °F Hi 76 °F Lo 47 °F Hi 81 °F Lo 49 °F Hi 74 °F Lo 44 °F Hi 70 °F Lo 43 °F

 

Tonight
 
 Mostly clear, with a low around 43. North wind 9 to 14 mph becoming light northwest after midnight. Winds could gust as high as 23 mph.
Juneteenth
 
 Mostly sunny, with a high near 76. Calm wind becoming east northeast 5 to 7 mph in the afternoon.
Friday Night
 
 Partly cloudy, with a low around 47. North northeast wind 5 to 7 mph becoming calm after midnight.
Saturday
 
 A chance of showers between noon and 3pm, then a chance of showers and thunderstorms after 3pm. Partly sunny, with a high near 81. Calm wind becoming west southwest 5 to 7 mph in the afternoon. Chance of precipitation is 30%.
Saturday Night
 
 A 30 percent chance of showers before midnight. Partly cloudy, with a low around 49. West wind 6 to 9 mph.
Sunday
 
 Sunny, with a high near 74. Light west northwest wind becoming northwest 6 to 11 mph in the morning. Winds could gust as high as 21 mph.
Sunday Night
 
 Partly cloudy, with a low around 44. North northwest wind 12 to 17 mph decreasing to 6 to 11 mph after midnight. Winds could gust as high as 29 mph.
Monday
 
 Sunny, with a high near 70. Light north northwest wind becoming north northeast 5 to 9 mph in the afternoon. Winds could gust as high as 20 mph.
Monday Night
 
 Mostly clear, with a low around 43.
Tuesday
 
 Sunny, with a high near 81.
Tuesday Night
 
 Mostly clear, with a low around 48.
Wednesday
 
 A slight chance of showers and thunderstorms. Mostly sunny, with a high near 85.
Wednesday Night
 
 Partly cloudy, with a low around 50.
Thursday
 
 Sunny, with a high near 86.

 

Forecast from NOAA-NWS for 5 Miles NNW Helena MT.