National Weather Service Forecast for: 6 Miles N Helena MT
Issued by: National Weather Service Great Falls, MT
Updated: 12:31 am MDT Aug 20, 2026
 
Overnight

Overnight: Mostly clear, with a low around 50. Calm wind.
Mostly Clear

 Thursday

Thursday: Patchy smoke between 1pm and 2pm. Sunny, with a high near 92. Light and variable wind becoming northwest 5 to 10 mph in the afternoon.
Sunny then
Patchy Smoke

 Thursday
Night
Thursday Night: Partly cloudy, with a low around 54. North northwest wind 5 to 9 mph becoming calm.
Partly Cloudy

 Friday

Friday: Mostly sunny, with a high near 91. Northwest wind 5 to 7 mph becoming calm in the morning.
Mostly Sunny

 Friday
Night
Friday Night: Mostly cloudy, with a low around 56. North wind around 6 mph becoming calm after midnight.
Mostly Cloudy

 Saturday

Saturday: A slight chance of showers between noon and 3pm, then a slight chance of showers and thunderstorms after 3pm. Partly sunny, with a high near 89. Calm wind becoming south around 6 mph in the afternoon. Chance of precipitation is 20%.
Partly Sunny
then Slight
Chance
T-storms
 Saturday
Night
Saturday Night: A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Mostly cloudy, with a low around 54. West wind 5 to 7 mph becoming calm after midnight. Chance of precipitation is 30%.
Chance
Showers then
Mostly Cloudy
 Sunday

Sunday: A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 84. Light south southwest wind becoming west 9 to 14 mph in the afternoon. Winds could gust as high as 26 mph.
Mostly Sunny
then Chance
Showers
 Sunday
Night
Sunday Night: Mostly clear, with a low around 49.
Mostly Clear
Lo 50 °F Hi 92 °F Lo 54 °F Hi 91 °F Lo 56 °F Hi 89 °F Lo 54 °F Hi 84 °F Lo 49 °F

 

Overnight
 
 Mostly clear, with a low around 50. Calm wind.
Thursday
 
 Patchy smoke between 1pm and 2pm. Sunny, with a high near 92. Light and variable wind becoming northwest 5 to 10 mph in the afternoon.
Thursday Night
 
 Partly cloudy, with a low around 54. North northwest wind 5 to 9 mph becoming calm.
Friday
 
 Mostly sunny, with a high near 91. Northwest wind 5 to 7 mph becoming calm in the morning.
Friday Night
 
 Mostly cloudy, with a low around 56. North wind around 6 mph becoming calm after midnight.
Saturday
 
 A slight chance of showers between noon and 3pm, then a slight chance of showers and thunderstorms after 3pm. Partly sunny, with a high near 89. Calm wind becoming south around 6 mph in the afternoon. Chance of precipitation is 20%.
Saturday Night
 
 A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Mostly cloudy, with a low around 54. West wind 5 to 7 mph becoming calm after midnight. Chance of precipitation is 30%.
Sunday
 
 A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 84. Light south southwest wind becoming west 9 to 14 mph in the afternoon. Winds could gust as high as 26 mph.
Sunday Night
 
 Mostly clear, with a low around 49.
Monday
 
 Sunny, with a high near 83.
Monday Night
 
 Partly cloudy, with a low around 50.
Tuesday
 
 Sunny, with a high near 84.
Tuesday Night
 
 A slight chance of showers and thunderstorms. Partly cloudy, with a low around 51.
Wednesday
 
 Sunny, with a high near 84.

 

Forecast from NOAA-NWS for 6 Miles N Helena MT.