Sweet Grass, Montana | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast day icon
    Sunday
    Mostly Sunny
    75°
    Forecast night icon
    Night
    Partly Cloudy
    52°
    Sunday 5/12
    Day
    75°
    Mostly Sunny
    Forecast day icon
    Night
    52°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Mostly sunny. High temperature around 75F. Dew point will be around 40F with an average humidity of 62%. Winds will be 10 mph from the S.
    Night Details
    Partly cloudy. Lows 45 to 50. West winds 5 to 15 mph.
  • Forecast day icon
    Monday
    50% Chance of Storms
    72°
    Forecast night icon
    Night
    70% Chance of Storms
    51°
    Monday 5/13
    Day
    72°
    50% Chance of Storms
    Forecast day icon
    Night
    51°
    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
    62°
    Forecast night icon
    Night
    Mostly Cloudy
    47°
    Tuesday 5/14
    Day
    62°
    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
    69°
    Forecast night icon
    Night
    Mostly Cloudy
    50°
    Wednesday 5/15
    Day
    69°
    Partly Cloudy
    Forecast day icon
    Night
    50°
    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
    70°
    Forecast night icon
    Night
    40% Chance Rain Showers
    43°
    Thursday 5/16
    Day
    70°
    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
    58°
    Forecast night icon
    Night
    30% Chance Rain Showers
    41°
    Friday 5/17
    Day
    58°
    40% Chance Rain Showers
    Forecast day icon
    Night
    41°
    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
    54°
    Forecast night icon
    Night
    Mostly Cloudy
    42°
    Saturday 5/18
    Day
    54°
    40% Chance Rain Showers
    Forecast day icon
    Night
    42°
    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
    62°
    Forecast night icon
    Night
    30% Chance of Rain
    45°
    Sunday 5/19
    Day
    62°
    Mostly Cloudy
    Forecast day icon
    Night
    45°
    30% Chance of Rain
    Forecast night icon
    Day Details
    Mostly cloudy with a 20 percent chance of rain showers. Lows around 35. Highs 55 to 60.
    Night Details
    Mostly clear with a slight chance of rain. Chance of precipitation 25%. Low temperature around 45F. Dew point will be around 31F with an average humidity of 46%. Winds will be 3 mph from the SW.
  • Forecast day icon
    Monday
    40% Chance of Rain
    64°
    Forecast night icon
    Night
    30% Chance of Rain
    44°
    Monday 5/20
    Day
    64°
    40% Chance of Rain
    Forecast day icon
    Night
    44°
    30% Chance of Rain
    Forecast night icon
    Day Details
    Partly cloudy with a chance of rain. Chance of precipitation 35%. High temperature around 64F. Dew point will be around 29F with an average humidity of 35%. Winds will be 7 mph from the W.
    Night Details
    Cloudy with a slight chance of rain. Chance of precipitation 30%. Low temperature around 44F. Dew point will be around 31F with an average humidity of 45%. Winds will be 6 mph from the W.
  • Forecast day icon
    Tuesday
    40% Chance of Rain
    59°
    Forecast night icon
    Night
    40% Chance of Rain
    42°
    Tuesday 5/21
    Day
    59°
    40% Chance of Rain
    Forecast day icon
    Night
    42°
    40% Chance of Rain
    Forecast night icon
    Day Details
    Partly cloudy with a chance of rain. Chance of precipitation 35%. High temperature around 59F. Dew point will be around 29F with an average humidity of 39%. Winds will be 10 mph from the W.
    Night Details
    Mostly cloudy with a chance of rain. Chance of precipitation 35%. Low temperature around 42F. Dew point will be around 31F with an average humidity of 50%. Winds will be 8 mph from the W.