National Weather Service Forecast for: 5 Miles NNW Helena MT
Issued by: National Weather Service Great Falls, MT
Updated: 3:43 am MDT Jun 22, 2026
 
Today

Today: A 30 percent chance of showers and thunderstorms, mainly after 3pm. Mostly sunny, with a high near 66. West northwest wind 6 to 16 mph becoming north in the afternoon. Winds could gust as high as 25 mph.
Sunny then
Chance
T-storms
 Tonight

Tonight: A 20 percent chance of showers before 8pm. Mostly clear, with a low around 40. North wind 11 to 16 mph becoming light west northwest after midnight. Winds could gust as high as 24 mph.
Slight Chance
Showers then
Mostly Clear
 Tuesday

Tuesday: Sunny, with a high near 72. Light and variable wind becoming north northeast 6 to 11 mph in the afternoon. Winds could gust as high as 22 mph.
Sunny

 Tuesday
Night
Tuesday Night: Mostly cloudy, with a low around 47. North wind 8 to 13 mph becoming light after midnight. Winds could gust as high as 22 mph.
Mostly Cloudy

 Wednesday

Wednesday: Mostly sunny, with a high near 77. Calm wind becoming northeast around 6 mph in the afternoon.
Mostly Sunny

 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 48. Northeast wind 5 to 9 mph becoming calm after midnight. Winds could gust as high as 18 mph. Chance of precipitation is 20%.
Slight Chance
T-storms then
Partly Cloudy
 Thursday

Thursday: A 30 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 80. Calm wind becoming west northwest around 6 mph in the afternoon.
Partly Sunny
then Chance
T-storms
 Thursday
Night
Thursday Night: Mostly cloudy, with a low around 51. North wind around 6 mph becoming calm in the evening.
Mostly Cloudy

 Friday

Friday: A chance of showers and thunderstorms after noon. Partly sunny, with a high near 80.
Partly Sunny
then Chance
T-storms
Hi 66 °F Lo 40 °F Hi 72 °F Lo 47 °F Hi 77 °F Lo 48 °F Hi 80 °F Lo 51 °F Hi 80 °F

 

Today
 
 A 30 percent chance of showers and thunderstorms, mainly after 3pm. Mostly sunny, with a high near 66. West northwest wind 6 to 16 mph becoming north in the afternoon. Winds could gust as high as 25 mph.
Tonight
 
 A 20 percent chance of showers before 8pm. Mostly clear, with a low around 40. North wind 11 to 16 mph becoming light west northwest after midnight. Winds could gust as high as 24 mph.
Tuesday
 
 Sunny, with a high near 72. Light and variable wind becoming north northeast 6 to 11 mph in the afternoon. Winds could gust as high as 22 mph.
Tuesday Night
 
 Mostly cloudy, with a low around 47. North wind 8 to 13 mph becoming light after midnight. Winds could gust as high as 22 mph.
Wednesday
 
 Mostly sunny, with a high near 77. Calm wind becoming northeast around 6 mph in the afternoon.
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 48. Northeast wind 5 to 9 mph becoming calm after midnight. Winds could gust as high as 18 mph. Chance of precipitation is 20%.
Thursday
 
 A 30 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 80. Calm wind becoming west northwest around 6 mph in the afternoon.
Thursday Night
 
 Mostly cloudy, with a low around 51. North wind around 6 mph becoming calm in the evening.
Friday
 
 A chance of showers and thunderstorms after noon. Partly sunny, with a high near 80.
Friday Night
 
 A chance of showers and thunderstorms. Mostly cloudy, with a low around 49.
Saturday
 
 Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 66.
Saturday Night
 
 A chance of showers and thunderstorms. Mostly cloudy, with a low around 43.
Sunday
 
 A chance of showers and thunderstorms. Partly sunny, with a high near 59. Breezy.

 

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