Great Falls, Montana | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
Main Menu
10 Day Forecast
  • Forecast night icon
    Night
    50% Chance Rain Showers
    40°
    Friday 5/17
    Forecast night icon
    40°
    50% Chance Rain Showers
    Hourly
    Night Details
    Windy colder. Mostly cloudy. A 50 percent chance of rain showers in the evening. Lows 35 to 40. West winds 20 to 30 mph becoming southwest 10 to 20 mph after midnight. Gusts up to 45 mph.
  • Forecast day icon
    Saturday
    Partly Cloudy
    61°
    Forecast night icon
    Night
    Partly Cloudy
    43°
    Saturday 5/18
    Day
    61°
    Partly Cloudy
    Forecast day icon
    Night
    43°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Breezy. Sunny in the morning then becoming partly cloudy. Highs 60 to 65. West winds 15 to 25 mph.
    Night Details
    Partly cloudy in the evening then mostly cloudy with a 20 percent chance of rain showers after midnight. Lows around 40. West winds 5 to 15 mph shifting to the southwest up to 5 mph after midnight.
  • Forecast day icon
    Sunday
    Thunderstorms
    53°
    Forecast night icon
    Night
    70% Chance of Storms
    36°
    Sunday 5/19
    Day
    53°
    Thunderstorms
    Forecast day icon
    Night
    36°
    70% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy. Chance of rain showers in the morning then rain showers and slight chance of thunderstorms in the afternoon. Highs 50 to 55. West winds up to 10 mph shifting to the northwest in the afternoon. Chance of precipitation 90 percent.
    Night Details
    Mostly cloudy. Rain showers likely and slight chance of thunderstorms in the evening then chance of rain showers after midnight. Lows 35 to 40. West winds 5 to 15 mph. Chance of precipitation 70 percent.
  • Forecast day icon
    Monday
    70% Chance of Storms
    57°
    Forecast night icon
    Night
    Mostly Cloudy
    39°
    Monday 5/20
    Day
    57°
    70% Chance of Storms
    Forecast day icon
    Night
    39°
    Mostly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Rain showers likely and slight chance of thunderstorms. Highs 55 to 60. Chance of precipitation 70 percent.
    Night Details
    Mostly cloudy with a 20 percent chance of rain showers. Lows 35 to 40.
  • Forecast day icon
    Tuesday
    Partly Cloudy
    64°
    Forecast night icon
    Night
    Mostly Cloudy
    41°
    Tuesday 5/21
    Day
    64°
    Partly Cloudy
    Forecast day icon
    Night
    41°
    Mostly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Partly cloudy with a 20 percent chance of rain showers. Highs 60 to 65.
    Night Details
    Mostly cloudy with a 20 percent chance of rain showers. Lows around 40.
  • Forecast day icon
    Wednesday
    70% Chance of Storms
    64°
    Forecast night icon
    Night
    70% Chance Rain Showers
    41°
    Wednesday 5/22
    Day
    64°
    70% Chance of Storms
    Forecast day icon
    Night
    41°
    70% Chance Rain Showers
    Forecast night icon
    Hourly
    Day Details
    Rain showers likely and slight chance of thunderstorms. Highs around 60. Chance of precipitation 70 percent.
    Night Details
    Rain showers likely. Lows around 40. Highs 50 to 55. Chance of showers 70 percent.
  • Forecast day icon
    Thursday
    70% Chance Rain Showers
    59°
    Forecast night icon
    Night
    50% Chance Rain Showers
    42°
    Thursday 5/23
    Day
    59°
    70% Chance Rain Showers
    Forecast day icon
    Night
    42°
    50% Chance Rain Showers
    Forecast night icon
    Hourly
    Day Details
    Rain showers likely. Lows around 40. Highs 50 to 55. Chance of showers 70 percent.
    Night Details
    Mostly cloudy with a 50 percent chance of rain showers. Lows around 40. Highs 55 to 60.
  • Forecast day icon
    Friday
    50% Chance Rain Showers
    57°
    Forecast night icon
    Night
    40% Chance of Rain
    42°
    Friday 5/24
    Day
    57°
    50% Chance Rain Showers
    Forecast day icon
    Night
    42°
    40% Chance of Rain
    Forecast night icon
    Day Details
    Mostly cloudy with a 50 percent chance of rain showers. Lows around 40. Highs 55 to 60.
    Night Details
    Cloudy with a chance of rain. Chance of precipitation 35%. Low temperature around 42F. Dew point will be around 36F with an average humidity of 69%. Winds will be 5 mph from the SW.
  • Forecast day icon
    Saturday
    50% Chance of Rain
    63°
    Forecast night icon
    Night
    30% Chance of Rain
    44°
    Saturday 5/25
    Day
    63°
    50% Chance of Rain
    Forecast day icon
    Night
    44°
    30% Chance of Rain
    Forecast night icon
    Day Details
    Cloudy with a chance of rain. Chance of precipitation 45%. High temperature around 63F. Dew point will be around 38F with an average humidity of 50%. Winds will be 8 mph from the W.
    Night Details
    Partly cloudy with a slight chance of rain. Chance of precipitation 30%. Low temperature around 44F. Dew point will be around 37F with an average humidity of 62%. Winds will be 4 mph from the SW.
  • Forecast day icon
    Sunday
    40% Chance of Rain
    67°
    Forecast night icon
    Night
    30% Chance of Rain
    45°
    Sunday 5/26
    Day
    67°
    40% Chance of Rain
    Forecast day icon
    Night
    45°
    30% Chance of Rain
    Forecast night icon
    Day Details
    Mostly sunny with a chance of rain. Chance of precipitation 35%. High temperature around 67F. Dew point will be around 39F with an average humidity of 47%. Winds will be 6 mph from the W.
    Night Details
    Mostly clear with a slight chance of rain. Chance of precipitation 25%. Low temperature around 45F. Dew point will be around 37F with an average humidity of 56%. Winds will be 5 mph from the SW.