Great Falls, Montana | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast day icon
    Sunday
    70% Chance of Storms
    64°
    Forecast night icon
    Night
    Thunderstorms
    43°
    Sunday 5/5
    Day
    64°
    70% Chance of Storms
    Forecast day icon
    Night
    43°
    Thunderstorms
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy. Slight chance of rain in the morning then rain showers likely and slight chance of thunderstorms in the afternoon. Highs in the mid 60s. Northeast winds up to 10 mph. Chance of precipitation 70 percent.
    Night Details
    Rain showers likely and slight chance of thunderstorms in the evening then rain showers and slight chance of thunderstorms after midnight. Lows 40 to 45. West winds 5 to 15 mph. Chance of precipitation 90 percent.
  • Forecast day icon
    Monday
    70% Chance of Rain
    54°
    Forecast night icon
    Night
    Windy
    37°
    Monday 5/6
    Day
    54°
    70% Chance of Rain
    Forecast day icon
    Night
    37°
    Windy
    Forecast night icon
    Hourly
    Day Details
    Windy cooler cloudy. Rain likely in the morning then slight chance of rain in the afternoon. Highs 50 to 55. Southwest winds 15 to 25 mph increasing to west 25 to 35 mph in the afternoon. Chance of rain 70 percent.
    Night Details
    Windy. Mostly cloudy. Slight chance of rain in the evening then slight chance of rain and snow after midnight. Lows around 40. West winds 20 to 30 mph. Chance of precipitation 20 percent.
  • Forecast day icon
    Tuesday
    70% Chance Frozen Mix
    53°
    Forecast night icon
    Night
    Frozen Mix
    37°
    Tuesday 5/7
    Day
    53°
    70% Chance Frozen Mix
    Forecast day icon
    Night
    37°
    Frozen Mix
    Forecast night icon
    Hourly
    Day Details
    Windy. Mostly cloudy. Slight chance of rain and snow in the morning then chance of rain and snow likely in the afternoon. Light snow accumulations. Highs 45 to 50. West winds 20 to 30 mph with gusts to around 45 mph. Chance of precipitation 70 percent.
    Night Details
    Windy. Rain and snow. Heavy snow accumulations. Lows around 35. Highs 40 to 45. Chance of precipitation 90 percent.
  • Forecast day icon
    Wednesday
    Frozen Mix
    43°
    Forecast night icon
    Night
    70% Chance of Rain
    36°
    Wednesday 5/8
    Day
    43°
    Frozen Mix
    Forecast day icon
    Night
    36°
    70% Chance of Rain
    Forecast night icon
    Hourly
    Day Details
    Windy. Rain and snow. Heavy snow accumulations. Lows around 35. Highs 40 to 45. Chance of precipitation 90 percent.
    Night Details
    Rain likely. Lows 35 to 40. Chance of rain 70 percent.
  • Forecast day icon
    Thursday
    50% Chance of Rain
    53°
    Forecast night icon
    Night
    Mostly Cloudy
    34°
    Thursday 5/9
    Day
    53°
    50% Chance of Rain
    Forecast day icon
    Night
    34°
    Mostly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Not as cool. Mostly cloudy with a 50 percent chance of rain. Highs 50 to 55.
    Night Details
    Mostly cloudy with a 20 percent chance of rain. Lows around 35.
  • Forecast day icon
    Friday
    Partly Cloudy
    64°
    Forecast night icon
    Night
    Mostly Clear
    39°
    Friday 5/10
    Day
    64°
    Partly Cloudy
    Forecast day icon
    Night
    39°
    Mostly Clear
    Forecast night icon
    Hourly
    Day Details
    Warmer. Partly cloudy. Highs 60 to 65.
    Night Details
    Mostly clear. Lows 35 to 40. Highs 65 to 70.
  • Forecast day icon
    Saturday
    Mostly Sunny
    73°
    Forecast night icon
    Night
    Mostly Clear
    48°
    Saturday 5/11
    Day
    73°
    Mostly Sunny
    Forecast day icon
    Night
    48°
    Mostly Clear
    Forecast night icon
    Day Details
    Mostly clear. Lows 35 to 40. Highs 65 to 70.
    Night Details
    Mostly clear. Low temperature around 48F. Dew point will be around 41F with an average humidity of 60%. Winds will be 8 mph from the SW.
  • Forecast day icon
    Sunday
    Sunny
    72°
    Forecast night icon
    Night
    Clear
    48°
    Sunday 5/12
    Day
    72°
    Sunny
    Forecast day icon
    Night
    48°
    Clear
    Forecast night icon
    Day Details
    Sunny. High temperature around 72F. Dew point will be around 39F with an average humidity of 41%. Winds will be 5 mph from the SW.
    Night Details
    Clear. Low temperature around 48F. Dew point will be around 43F with an average humidity of 64%. Winds will be 5 mph from the SW.
  • Forecast day icon
    Monday
    Sunny
    72°
    Forecast night icon
    Night
    30% Chance of Rain
    48°
    Monday 5/13
    Day
    72°
    Sunny
    Forecast day icon
    Night
    48°
    30% Chance of Rain
    Forecast night icon
    Day Details
    Sunny. High temperature around 72F. Dew point will be around 40F with an average humidity of 42%. Winds will be 7 mph from the W.
    Night Details
    Partly cloudy with a slight chance of rain. Chance of precipitation 25%. Low temperature around 48F. Dew point will be around 43F with an average humidity of 67%. Winds will be 6 mph from the SW.
  • Forecast day icon
    Tuesday
    30% Chance of Rain
    66°
    Forecast night icon
    Night
    30% Chance of Rain
    44°
    Tuesday 5/14
    Day
    66°
    30% Chance of Rain
    Forecast day icon
    Night
    44°
    30% Chance of Rain
    Forecast night icon
    Day Details
    Partly cloudy with a slight chance of rain. Chance of precipitation 25%. High temperature around 66F. Dew point will be around 40F with an average humidity of 46%. Winds will be 7 mph from the W.
    Night Details
    Partly cloudy with a slight chance of rain. Chance of precipitation 25%. Low temperature around 44F. Dew point will be around 40F with an average humidity of 68%. Winds will be 6 mph from the W.