Helena, Montana | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast day icon
    Monday
    Partly Cloudy
    74°
    Forecast night icon
    Night
    Partly Cloudy
    48°
    Monday 5/13
    Day
    74°
    Partly Cloudy
    Forecast day icon
    Night
    48°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Sunny late in the morning then partly cloudy with a 20 percent chance of thunderstorms in the afternoon. Highs in the mid 70s. West winds 10 to 20 mph.
    Night Details
    Partly cloudy with slight chance of thunderstorms in the evening then mostly cloudy with slight chance of rain showers after midnight. Some thunderstorms may produce gusty winds in the evening. Lows 45 to 50. West winds 5 to 15 mph. Gusts up to 30 mph in the evening. Chance of precipitation 20 percent.
  • Forecast day icon
    Tuesday
    70% Chance of Storms
    65°
    Forecast night icon
    Night
    30% Chance of Storms
    45°
    Tuesday 5/14
    Day
    65°
    70% Chance of Storms
    Forecast day icon
    Night
    45°
    30% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Cooler. Mostly cloudy. Chance of rain showers and slight chance of thunderstorms in the morning then rain showers likely and chance of thunderstorms in the afternoon. Highs in the mid 60s. Northwest winds 5 to 15 mph. Chance of precipitation 70 percent.
    Night Details
    Mostly cloudy. A 30 percent chance of thunderstorms in the evening. Lows around 45. Northwest winds 5 to 15 mph shifting to the west up to 5 mph after midnight.
  • Forecast day icon
    Wednesday
    Partly Cloudy
    74°
    Forecast night icon
    Night
    Partly Cloudy
    48°
    Wednesday 5/15
    Day
    74°
    Partly Cloudy
    Forecast day icon
    Night
    48°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Partly cloudy. Highs 70 to 75. Southwest winds up to 5 mph increasing to west 10 to 15 mph in the afternoon.
    Night Details
    Partly cloudy with a 20 percent chance of rain. Lows 45 to 50.
  • Forecast day icon
    Thursday
    30% Chance of Storms
    80°
    Forecast night icon
    Night
    Partly Cloudy
    50°
    Thursday 5/16
    Day
    80°
    30% Chance of Storms
    Forecast day icon
    Night
    50°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy with chance of rain showers and slight chance of thunderstorms. Highs around 75. Chance of precipitation 30 percent.
    Night Details
    Partly cloudy with a 20 percent chance of thunderstorms. Lows 45 to 50.
  • Forecast day icon
    Friday
    Partly Cloudy
    71°
    Forecast night icon
    Night
    Partly Cloudy
    42°
    Friday 5/17
    Day
    71°
    Partly Cloudy
    Forecast day icon
    Night
    42°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Partly cloudy with a 20 percent chance of rain. Highs 70 to 75. Lows 40 to 45.
    Night Details
    Partly cloudy with a 20 percent chance of rain. Highs 70 to 75. Lows 40 to 45.
  • Forecast day icon
    Saturday
    40% Chance of Storms
    58°
    Forecast night icon
    Night
    Mostly Cloudy
    39°
    Saturday 5/18
    Day
    58°
    40% Chance of Storms
    Forecast day icon
    Night
    39°
    Mostly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Partly cloudy with chance of rain showers and slight chance of thunderstorms. Highs 60 to 65. Chance of precipitation 40 percent.
    Night Details
    Mostly cloudy with a 20 percent chance of thunderstorms. Lows around 40.
  • Forecast day icon
    Sunday
    30% Chance of Storms
    67°
    Forecast night icon
    Night
    Partly Cloudy
    43°
    Sunday 5/19
    Day
    67°
    30% Chance of Storms
    Forecast day icon
    Night
    43°
    Partly Cloudy
    Forecast night icon
    Day Details
    Partly cloudy with chance of rain showers and slight chance of thunderstorms. Highs around 65. Chance of precipitation 30 percent.
    Night Details
    Partly cloudy. Low temperature around 43F. Dew point will be around 36F with an average humidity of 58%. Winds will be 6 mph from the NW.
  • Forecast day icon
    Monday
    Partly Cloudy
    71°
    Forecast night icon
    Night
    30% Chance of Rain
    44°
    Monday 5/20
    Day
    71°
    Partly Cloudy
    Forecast day icon
    Night
    44°
    30% Chance of Rain
    Forecast night icon
    Day Details
    Partly cloudy. High temperature around 71F. Dew point will be around 38F with an average humidity of 43%. Winds will be 8 mph from the W.
    Night Details
    Mostly cloudy with a slight chance of rain. Chance of precipitation 30%. Low temperature around 44F. Dew point will be around 36F with an average humidity of 52%. Winds will be 8 mph from the W.
  • Forecast day icon
    Tuesday
    40% Chance of Rain
    67°
    Forecast night icon
    Night
    50% Chance of Rain
    42°
    Tuesday 5/21
    Day
    67°
    40% Chance of Rain
    Forecast day icon
    Night
    42°
    50% Chance of Rain
    Forecast night icon
    Day Details
    Mostly cloudy with a chance of rain. Chance of precipitation 40%. High temperature around 67F. Dew point will be around 38F with an average humidity of 46%. Winds will be 9 mph from the W.
    Night Details
    Cloudy with a chance of rain. Chance of precipitation 45%. Low temperature around 42F. Dew point will be around 37F with an average humidity of 59%. Winds will be 7 mph from the W.
  • Forecast day icon
    Wednesday
    50% Chance of Rain
    64°
    Forecast night icon
    Night
    50% Chance of Rain
    42°
    Wednesday 5/22
    Day
    64°
    50% Chance of Rain
    Forecast day icon
    Night
    42°
    50% Chance of Rain
    Forecast night icon
    Day Details
    Partly cloudy with a chance of rain. Chance of precipitation 50%. High temperature around 64F. Dew point will be around 39F with an average humidity of 52%. Winds will be 8 mph from the W.
    Night Details
    Cloudy with a chance of rain. Chance of precipitation 50%. Low temperature around 42F. Dew point will be around 39F with an average humidity of 64%. Winds will be 6 mph from the NW.