Sweet Grass, Montana | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast day icon
    Sunday
    Mostly Sunny
    72°
    Forecast night icon
    Night
    Partly Cloudy
    53°
    Sunday 5/12
    Day
    72°
    Mostly Sunny
    Forecast day icon
    Night
    53°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Mostly sunny. High temperature around 72F. Dew point will be around 40F with an average humidity of 62%. Winds will be 10 mph from the SW.
    Night Details
    Partly cloudy. Lows 45 to 50. West winds 5 to 15 mph.
  • Forecast day icon
    Monday
    50% Chance of Storms
    70°
    Forecast night icon
    Night
    70% Chance of Storms
    50°
    Monday 5/13
    Day
    70°
    50% Chance of Storms
    Forecast day icon
    Night
    50°
    70% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Windy. Sunny in the morning then partly cloudy with chance of rain showers and slight chance of thunderstorms in the afternoon. Highs 70 to 75. West winds 10 to 15 mph increasing to 20 to 30 mph in the afternoon. Chance of precipitation 50 percent.
    Night Details
    Mostly cloudy. Chance of rain showers and slight chance of thunderstorms in the evening then rain showers likely and slight chance of thunderstorms after midnight. Lows in the mid 40s. Northwest winds 5 to 15 mph. Gusts up to 30 mph in the evening. Chance of precipitation 70 percent.
  • Forecast day icon
    Tuesday
    70% Chance of Storms
    59°
    Forecast night icon
    Night
    Mostly Cloudy
    47°
    Tuesday 5/14
    Day
    59°
    70% Chance of Storms
    Forecast day icon
    Night
    47°
    Mostly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Cooler. Mostly cloudy. Rain showers likely in the morning then slight chance of thunderstorms in the afternoon. Highs around 60. Northwest winds 10 to 15 mph. Chance of precipitation 70 percent.
    Night Details
    Mostly cloudy. Slight chance of thunderstorms in the evening then slight chance of rain showers after midnight. Lows 40 to 45. Northwest winds 5 to 10 mph shifting to the southwest after midnight. Chance of precipitation 20 percent.
  • Forecast day icon
    Wednesday
    Partly Cloudy
    67°
    Forecast night icon
    Night
    Mostly Cloudy
    49°
    Wednesday 5/15
    Day
    67°
    Partly Cloudy
    Forecast day icon
    Night
    49°
    Mostly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Partly cloudy with a 20 percent chance of rain showers. Highs around 70.
    Night Details
    Mostly cloudy with a 20 percent chance of rain showers. Lows 45 to 50.
  • Forecast day icon
    Thursday
    30% Chance Rain Showers
    65°
    Forecast night icon
    Night
    40% Chance Rain Showers
    43°
    Thursday 5/16
    Day
    65°
    30% Chance Rain Showers
    Forecast day icon
    Night
    43°
    40% Chance Rain Showers
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy with a 30 percent chance of rain showers. Highs around 70.
    Night Details
    Breezy cooler. Mostly cloudy with a 40 percent chance of rain showers. Lows 40 to 45. Highs 55 to 60.
  • Forecast day icon
    Friday
    40% Chance Rain Showers
    52°
    Forecast night icon
    Night
    30% Chance Rain Showers
    42°
    Friday 5/17
    Day
    52°
    40% Chance Rain Showers
    Forecast day icon
    Night
    42°
    30% Chance Rain Showers
    Forecast night icon
    Hourly
    Day Details
    Breezy cooler. Mostly cloudy with a 40 percent chance of rain showers. Lows 40 to 45. Highs 55 to 60.
    Night Details
    Mostly cloudy with a 30 percent chance of rain showers. Lows around 35.
  • Forecast day icon
    Saturday
    40% Chance Rain Showers
    55°
    Forecast night icon
    Night
    Mostly Cloudy
    41°
    Saturday 5/18
    Day
    55°
    40% Chance Rain Showers
    Forecast day icon
    Night
    41°
    Mostly Cloudy
    Forecast night icon
    Day Details
    Mostly cloudy with a 40 percent chance of rain showers. Highs around 55.
    Night Details
    Mostly cloudy with a 20 percent chance of rain showers. Lows around 35. Highs 55 to 60.
  • Forecast day icon
    Sunday
    Mostly Cloudy
    59°
    Forecast night icon
    Night
    Clear
    43°
    Sunday 5/19
    Day
    59°
    Mostly Cloudy
    Forecast day icon
    Night
    43°
    Clear
    Forecast night icon
    Day Details
    Mostly cloudy with a 20 percent chance of rain showers. Lows around 35. Highs 55 to 60.
    Night Details
    Clear. Low temperature around 43F. Dew point will be around 31F with an average humidity of 50%. Winds will be 6 mph from the W.
  • Forecast day icon
    Monday
    40% Chance of Rain
    59°
    Forecast night icon
    Night
    30% Chance of Rain
    44°
    Monday 5/20
    Day
    59°
    40% Chance of Rain
    Forecast day icon
    Night
    44°
    30% Chance of Rain
    Forecast night icon
    Day Details
    Mostly sunny with a chance of rain. Chance of precipitation 35%. High temperature around 59F. Dew point will be around 32F with an average humidity of 45%. Winds will be 9 mph from the NW.
    Night Details
    Partly cloudy with a slight chance of rain. Chance of precipitation 25%. Low temperature around 44F. Dew point will be around 32F with an average humidity of 50%. Winds will be 5 mph from the W.
  • Forecast day icon
    Tuesday
    40% Chance of Rain
    57°
    Forecast night icon
    Night
    40% Chance of Rain
    44°
    Tuesday 5/21
    Day
    57°
    40% Chance of Rain
    Forecast day icon
    Night
    44°
    40% Chance of Rain
    Forecast night icon
    Day Details
    Mostly cloudy with a 35% chance for rain and thunderstorms. High temperature around 57F. Dew point will be around 34F with an average humidity of 50%. Winds will be 8 mph from the NW.
    Night Details
    Cloudy with a 35% chance for rain and thunderstorms. Low temperature around 44F. Dew point will be around 35F with an average humidity of 59%. Winds will be 6 mph from the W.