Fort Harrison, Montana | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast night icon
    Night
    Mostly Clear
    34°
    Sunday 5/19
    Forecast night icon
    34°
    Mostly Clear
    Hourly
    Night Details
    Colder. Mostly clear. A 20 percent chance of thunderstorms early in the evening. Lows 30 to 35. West winds up to 10 mph.
  • Forecast day icon
    Monday
    70% Chance of Storms
    61°
    Forecast night icon
    Night
    Partly Cloudy
    37°
    Monday 5/20
    Day
    61°
    70% Chance of Storms
    Forecast day icon
    Night
    37°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Partly cloudy in the morning then mostly cloudy with rain showers likely and slight chance of thunderstorms in the afternoon. Highs around 60. Northwest winds up to 10 mph. Chance of precipitation 70 percent.
    Night Details
    Mostly cloudy with a 20 percent chance of thunderstorms in the evening then partly cloudy after midnight. Lows in the mid 30s. West winds up to 10 mph.
  • Forecast day icon
    Tuesday
    40% Chance of Rain
    65°
    Forecast night icon
    Night
    Partly Cloudy
    44°
    Tuesday 5/21
    Day
    65°
    40% Chance of Rain
    Forecast day icon
    Night
    44°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Sunny in the morning then mostly cloudy with a 40 percent chance of rain in the afternoon. Highs around 65. West winds up to 10 mph.
    Night Details
    Partly cloudy with a 20 percent chance of rain in the evening then mostly cloudy after midnight. Lows around 40. West winds 5 to 10 mph shifting to the south after midnight.
  • Forecast day icon
    Wednesday
    70% Chance of Storms
    61°
    Forecast night icon
    Night
    70% Chance of Rain
    41°
    Wednesday 5/22
    Day
    61°
    70% Chance of Storms
    Forecast day icon
    Night
    41°
    70% Chance of Rain
    Forecast night icon
    Hourly
    Day Details
    Rain showers likely and slight chance of thunderstorms. Highs 60 to 65. Chance of precipitation 70 percent.
    Night Details
    Rain likely. Lows 35 to 40. Chance of rain 70 percent.
  • Forecast day icon
    Thursday
    Rain
    48°
    Forecast night icon
    Night
    50% Chance of Rain
    36°
    Thursday 5/23
    Day
    48°
    Rain
    Forecast day icon
    Night
    36°
    50% Chance of Rain
    Forecast night icon
    Hourly
    Day Details
    Cooler rain. Highs around 50. Chance of rain 90 percent.
    Night Details
    Mostly cloudy with a 50 percent chance of rain. Lows around 35.
  • Forecast day icon
    Friday
    40% Chance of Storms
    63°
    Forecast night icon
    Night
    Mostly Cloudy
    43°
    Friday 5/24
    Day
    63°
    40% Chance of Storms
    Forecast day icon
    Night
    43°
    Mostly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy with chance of rain showers and slight chance of thunderstorms. Highs around 60. Chance of precipitation 40 percent.
    Night Details
    Mostly cloudy with a 20 percent chance of rain. Lows around 40.
  • Forecast day icon
    Saturday
    50% Chance of Storms
    65°
    Forecast night icon
    Night
    40% Chance of Rain
    42°
    Saturday 5/25
    Day
    65°
    50% Chance of Storms
    Forecast day icon
    Night
    42°
    40% Chance of Rain
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy with chance of rain showers and slight chance of thunderstorms. Highs around 65. Chance of precipitation 50 percent.
    Night Details
    Mostly cloudy with a 40 percent chance of rain. Lows around 40.
  • Forecast day icon
    Sunday
    50% Chance of Storms
    60°
    Forecast night icon
    Night
    Partly Cloudy
    41°
    Sunday 5/26
    Day
    60°
    50% Chance of Storms
    Forecast day icon
    Night
    41°
    Partly Cloudy
    Forecast night icon
    Day Details
    Mostly cloudy with chance of rain showers and slight chance of thunderstorms. Highs 60 to 65. Chance of precipitation 50 percent.
    Night Details
    Partly cloudy. Low temperature around 41F. Dew point will be around 39F with an average humidity of 72%. Winds will be 10 mph from the SW.
  • Forecast day icon
    Monday
    Mostly Sunny
    66°
    Forecast night icon
    Night
    Mostly Clear
    44°
    Monday 5/27
    Day
    66°
    Mostly Sunny
    Forecast day icon
    Night
    44°
    Mostly Clear
    Forecast night icon
    Day Details
    Mostly sunny. High temperature around 66F. Dew point will be around 42F with an average humidity of 56%. Winds will be 11 mph from the W.
    Night Details
    Mostly clear. Low temperature around 44F. Dew point will be around 41F with an average humidity of 66%. Winds will be 8 mph from the W.
  • Forecast day icon
    Tuesday
    Sunny
    73°
    Forecast night icon
    Night
    Mostly Clear
    48°
    Tuesday 5/28
    Day
    73°
    Sunny
    Forecast day icon
    Night
    48°
    Mostly Clear
    Forecast night icon
    Day Details
    Sunny. High temperature around 73F. Dew point will be around 44F with an average humidity of 48%. Winds will be 7 mph from the SW.
    Night Details
    Mostly clear. Low temperature around 48F. Dew point will be around 44F with an average humidity of 63%. Winds will be 6 mph from the SW.