Great Falls, Montana | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast night icon
    Night
    Mostly Clear
    44°
    Friday 5/10
    Forecast night icon
    44°
    Mostly Clear
    Hourly
    Night Details
    Mostly clear. Lows 40 to 45. South winds 5 to 10 mph.
  • Forecast day icon
    Saturday
    Partly Cloudy
    73°
    Forecast night icon
    Night
    Partly Cloudy
    49°
    Saturday 5/11
    Day
    73°
    Partly Cloudy
    Forecast day icon
    Night
    49°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Partly cloudy in the morning then becoming sunny. Highs 75 to 80. Southwest winds 5 to 15 mph shifting to the northwest 5 to 10 mph in the afternoon.
    Night Details
    Partly cloudy with a 20 percent chance of rain. Lows in the mid 40s. Southwest winds up to 10 mph.
  • Forecast day icon
    Sunday
    Sunny
    75°
    Forecast night icon
    Night
    Mostly Clear
    48°
    Sunday 5/12
    Day
    75°
    Sunny
    Forecast day icon
    Night
    48°
    Mostly Clear
    Forecast night icon
    Hourly
    Day Details
    Sunny. A 20 percent chance of rain in the afternoon. Highs 75 to 80. West winds 5 to 10 mph.
    Night Details
    Mostly clear. A 20 percent chance of thunderstorms in the evening. Some thunderstorms may produce heavy rainfall in the evening. Lows 45 to 50. Southwest winds 5 to 10 mph.
  • Forecast day icon
    Monday
    Sunny
    73°
    Forecast night icon
    Night
    Mostly Cloudy
    51°
    Monday 5/13
    Day
    73°
    Sunny
    Forecast day icon
    Night
    51°
    Mostly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Breezy. Sunny with a 20 percent chance of rain. Highs 70 to 75.
    Night Details
    Mostly cloudy with a 20 percent chance of rain. Lows 45 to 50.
  • Forecast day icon
    Tuesday
    70% Chance of Storms
    57°
    Forecast night icon
    Night
    50% Chance of Rain
    41°
    Tuesday 5/14
    Day
    57°
    70% Chance of Storms
    Forecast day icon
    Night
    41°
    50% Chance of Rain
    Forecast night icon
    Hourly
    Day Details
    Cooler. Rain showers likely and slight chance of thunderstorms. Highs around 60. Chance of precipitation 70 percent.
    Night Details
    Mostly cloudy with a 50 percent chance of rain. Lows 40 to 45. Highs 65 to 70.
  • Forecast day icon
    Wednesday
    50% Chance of Rain
    64°
    Forecast night icon
    Night
    Partly Cloudy
    45°
    Wednesday 5/15
    Day
    64°
    50% Chance of Rain
    Forecast day icon
    Night
    45°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy with a 50 percent chance of rain. Lows 40 to 45. Highs 65 to 70.
    Night Details
    Partly cloudy with a 20 percent chance of rain. Lows 45 to 50.
  • Forecast day icon
    Thursday
    40% Chance of Rain
    58°
    Forecast night icon
    Night
    30% Chance of Rain
    43°
    Thursday 5/16
    Day
    58°
    40% Chance of Rain
    Forecast day icon
    Night
    43°
    30% Chance of Rain
    Forecast night icon
    Hourly
    Day Details
    Partly cloudy with a 40 percent chance of rain. Highs 70 to 75.
    Night Details
    Partly cloudy with a 30 percent chance of rain. Lows around 45.
  • Forecast day icon
    Friday
    40% Chance of Rain
    65°
    Forecast night icon
    Night
    30% Chance of Rain
    44°
    Friday 5/17
    Day
    65°
    40% Chance of Rain
    Forecast day icon
    Night
    44°
    30% Chance of Rain
    Forecast night icon
    Day Details
    Mostly cloudy with a 40 percent chance of rain. Highs 65 to 70.
    Night Details
    Clear with a slight chance of rain. Chance of precipitation 30%. Low temperature around 44F. Dew point will be around 39F with an average humidity of 65%. Winds will be 4 mph from the SW.
  • Forecast day icon
    Saturday
    30% Chance of Rain
    65°
    Forecast night icon
    Night
    30% Chance of Rain
    43°
    Saturday 5/18
    Day
    65°
    30% Chance of Rain
    Forecast day icon
    Night
    43°
    30% Chance of Rain
    Forecast night icon
    Day Details
    Sunny with a slight chance of rain. Chance of precipitation 30%. High temperature around 65F. Dew point will be around 40F with an average humidity of 52%. Winds will be 5 mph from the W.
    Night Details
    Clear with a slight chance of rain. Chance of precipitation 25%. Low temperature around 43F. Dew point will be around 40F with an average humidity of 67%. Winds will be 3 mph from the SW.
  • Forecast day icon
    Sunday
    30% Chance of Rain
    65°
    Forecast night icon
    Night
    30% Chance of Rain
    44°
    Sunday 5/19
    Day
    65°
    30% Chance of Rain
    Forecast day icon
    Night
    44°
    30% Chance of Rain
    Forecast night icon
    Day Details
    Mostly sunny with a slight chance of rain. Chance of precipitation 25%. High temperature around 65F. Dew point will be around 42F with an average humidity of 54%. Winds will be 5 mph from the NW.
    Night Details
    Mostly clear with a slight chance of rain. Chance of precipitation 30%. Low temperature around 44F. Dew point will be around 41F with an average humidity of 70%. Winds will be 5 mph from the SW.