Helena, Montana | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast day icon
    Tuesday
    Thunderstorms
    66°
    Forecast night icon
    Night
    40% Chance of Storms
    44°
    Tuesday 5/14
    Day
    66°
    Thunderstorms
    Forecast day icon
    Night
    44°
    40% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Cooler. Mostly cloudy. Chance of rain showers and slight chance of thunderstorms early in the morning then rain showers and chance of thunderstorms in the afternoon. Highs in the mid 60s. Northwest winds 5 to 15 mph. Chance of precipitation 90 percent.
    Night Details
    Mostly cloudy. Chance of thunderstorms in the evening then slight chance of thunderstorms after midnight. Lows in the mid 40s. Northwest winds 5 to 10 mph shifting to the southwest after midnight. Chance of thunderstorms 40 percent.
  • Forecast day icon
    Wednesday
    Partly Cloudy
    76°
    Forecast night icon
    Night
    Partly Cloudy
    50°
    Wednesday 5/15
    Day
    76°
    Partly Cloudy
    Forecast day icon
    Night
    50°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Partly cloudy in the morning then becoming mostly cloudy. Highs 70 to 75. West winds 5 to 15 mph.
    Night Details
    Mostly cloudy in the evening then becoming partly cloudy. Lows around 50. West winds 10 to 20 mph.
  • Forecast day icon
    Thursday
    Partly Cloudy
    79°
    Forecast night icon
    Night
    Mostly Clear
    50°
    Thursday 5/16
    Day
    79°
    Partly Cloudy
    Forecast day icon
    Night
    50°
    Mostly Clear
    Forecast night icon
    Hourly
    Day Details
    Partly cloudy with a 20 percent chance of rain. Highs 75 to 80. Southwest winds 5 to 10 mph shifting to the west 10 to 20 mph in the afternoon.
    Night Details
    Mostly clear. Lows around 50.
  • Forecast day icon
    Friday
    Sunny
    71°
    Forecast night icon
    Night
    Partly Cloudy
    41°
    Friday 5/17
    Day
    71°
    Sunny
    Forecast day icon
    Night
    41°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Sunny with a 20 percent chance of rain. Highs 70 to 75.
    Night Details
    Colder. Partly cloudy with a 20 percent chance of rain. Lows 40 to 45.
  • Forecast day icon
    Saturday
    40% Chance of Rain
    61°
    Forecast night icon
    Night
    Partly Cloudy
    38°
    Saturday 5/18
    Day
    61°
    40% Chance of Rain
    Forecast day icon
    Night
    38°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Partly cloudy with a 40 percent chance of rain. Highs around 65.
    Night Details
    Partly cloudy with a 20 percent chance of rain. Lows around 40. Highs 65 to 70.
  • Forecast day icon
    Sunday
    Partly Cloudy
    68°
    Forecast night icon
    Night
    Partly Cloudy
    43°
    Sunday 5/19
    Day
    68°
    Partly Cloudy
    Forecast day icon
    Night
    43°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Partly cloudy with a 20 percent chance of rain. Lows around 40. Highs 65 to 70.
    Night Details
    Partly cloudy. Lows around 40.
  • Forecast day icon
    Monday
    Partly Cloudy
    61°
    Forecast night icon
    Night
    30% Chance of Rain
    43°
    Monday 5/20
    Day
    61°
    Partly Cloudy
    Forecast day icon
    Night
    43°
    30% Chance of Rain
    Forecast night icon
    Day Details
    Partly cloudy with a 20 percent chance of thunderstorms. Highs around 70.
    Night Details
    Partly cloudy with a slight chance of rain. Chance of precipitation 25%. Low temperature around 43F. Dew point will be around 35F with an average humidity of 59%. Winds will be 7 mph from the W.
  • Forecast day icon
    Tuesday
    40% Chance of Rain
    66°
    Forecast night icon
    Night
    40% Chance of Rain
    43°
    Tuesday 5/21
    Day
    66°
    40% Chance of Rain
    Forecast day icon
    Night
    43°
    40% Chance of Rain
    Forecast night icon
    Day Details
    Partly cloudy with a chance of rain. Chance of precipitation 35%. High temperature around 66F. Dew point will be around 39F with an average humidity of 48%. Winds will be 7 mph from the W.
    Night Details
    Cloudy with a chance of rain. Chance of precipitation 35%. Low temperature around 43F. Dew point will be around 36F with an average humidity of 56%. Winds will be 6 mph from the W.
  • Forecast day icon
    Wednesday
    40% Chance of Rain
    64°
    Forecast night icon
    Night
    50% Chance of Rain
    44°
    Wednesday 5/22
    Day
    64°
    40% Chance of Rain
    Forecast day icon
    Night
    44°
    50% Chance of Rain
    Forecast night icon
    Day Details
    Cloudy with a chance of rain. Chance of precipitation 35%. High temperature around 64F. Dew point will be around 40F with an average humidity of 51%. Winds will be 8 mph from the NW.
    Night Details
    Cloudy with a chance of rain. Chance of precipitation 50%. Low temperature around 44F. Dew point will be around 39F with an average humidity of 63%. Winds will be 7 mph from the W.
  • Forecast day icon
    Thursday
    60% Chance of Rain
    62°
    Forecast night icon
    Night
    50% Chance of Rain
    43°
    Thursday 5/23
    Day
    62°
    60% Chance of Rain
    Forecast day icon
    Night
    43°
    50% Chance of Rain
    Forecast night icon
    Day Details
    Cloudy with a chance of rain. Chance of precipitation 55%. High temperature around 62F. Dew point will be around 42F with an average humidity of 59%. Winds will be 8 mph from the NW.
    Night Details
    Cloudy with a chance of rain. Chance of precipitation 50%. Low temperature around 43F. Dew point will be around 39F with an average humidity of 67%. Winds will be 6 mph from the NW.