Roundup, Montana | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast night icon
    Night
    Mostly Clear
    42°
    Friday 5/17
    Forecast night icon
    42°
    Mostly Clear
    Hourly
    Night Details
    Mostly clear. Colder. Lows in the upper 30s. West winds 15 to 25 mph.
  • Forecast day icon
    Saturday
    Sunny
    65°
    Forecast night icon
    Night
    Partly Cloudy
    46°
    Saturday 5/18
    Day
    65°
    Sunny
    Forecast day icon
    Night
    46°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Sunny. Highs in the mid 60s. West winds 10 to 20 mph.
    Night Details
    Partly cloudy. Lows in the lower 40s. Southeast winds 5 to 10 mph in the evening shifting to the north overnight.
  • Forecast day icon
    Sunday
    50% Chance of Rain
    57°
    Forecast night icon
    Night
    40% Chance of Rain
    37°
    Sunday 5/19
    Day
    57°
    50% Chance of Rain
    Forecast day icon
    Night
    37°
    40% Chance of Rain
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy with a 50 percent chance of rain. Highs around 60. North winds 5 to 15 mph.
    Night Details
    Mostly cloudy. Chance of rain in the evening then slight chance of rain overnight. Lows in the upper 30s. Northwest winds 5 to 15 mph. Chance of precipitation 40 percent.
  • Forecast day icon
    Monday
    40% Chance of Rain
    60°
    Forecast night icon
    Night
    Mostly Cloudy
    39°
    Monday 5/20
    Day
    60°
    40% Chance of Rain
    Forecast day icon
    Night
    39°
    Mostly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Partly sunny with a 40 percent chance of rain. Highs in the upper 50s.
    Night Details
    Mostly cloudy. Lows in the upper 30s.
  • Forecast day icon
    Tuesday
    Partly Sunny
    60°
    Forecast night icon
    Night
    Mostly Cloudy
    38°
    Tuesday 5/21
    Day
    60°
    Partly Sunny
    Forecast day icon
    Night
    38°
    Mostly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Partly sunny. A 20 percent chance of showers and thunderstorms in the afternoon. Highs in the lower 60s.
    Night Details
    Mostly cloudy. Lows around 40.
  • Forecast day icon
    Wednesday
    40% Chance of Storms
    66°
    Forecast night icon
    Night
    50% Chance of Storms
    45°
    Wednesday 5/22
    Day
    66°
    40% Chance of Storms
    Forecast day icon
    Night
    45°
    50% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Partly sunny. Chance of rain showers and slight chance of thunderstorms in the afternoon. Highs in the mid 60s. Chance of precipitation 40 percent.
    Night Details
    Mostly cloudy. Chance of rain showers and slight chance of thunderstorms in the evening then chance of rain overnight. Lows in the lower 40s. Chance of precipitation 50 percent.
  • Forecast day icon
    Thursday
    60% Chance of Rain
    67°
    Forecast night icon
    Night
    50% Chance of Rain
    43°
    Thursday 5/23
    Day
    67°
    60% Chance of Rain
    Forecast day icon
    Night
    43°
    50% Chance of Rain
    Forecast night icon
    Hourly
    Day Details
    Chance of rain in the morning then rain likely in the afternoon. Highs in the upper 50s. Chance of precipitation 60 percent.
    Night Details
    Mostly cloudy with a 50 percent chance of rain. Lows in the lower 40s.
  • Forecast day icon
    Friday
    50% Chance of Rain
    59°
    Forecast night icon
    Night
    40% Chance of Rain
    42°
    Friday 5/24
    Day
    59°
    50% Chance of Rain
    Forecast day icon
    Night
    42°
    40% Chance of Rain
    Forecast night icon
    Day Details
    Partly sunny with a 50 percent chance of rain. Highs in the lower 60s.
    Night Details
    Mostly cloudy with a chance of rain. Chance of precipitation 35%. Low temperature around 42F. Dew point will be around 35F with an average humidity of 62%. Winds will be 3 mph from the NW.
  • Forecast day icon
    Saturday
    40% Chance of Rain
    65°
    Forecast night icon
    Night
    50% Chance of Rain
    44°
    Saturday 5/25
    Day
    65°
    40% Chance of Rain
    Forecast day icon
    Night
    44°
    50% Chance of Rain
    Forecast night icon
    Day Details
    Mostly cloudy with a chance of rain. Chance of precipitation 40%. High temperature around 65F. Dew point will be around 36F with an average humidity of 46%. Winds will be 4 mph from the W.
    Night Details
    Partly cloudy with a chance of rain. Chance of precipitation 45%. Low temperature around 44F. Dew point will be around 35F with an average humidity of 55%. Winds will be 2 mph from the N.
  • Forecast day icon
    Sunday
    40% Chance of Rain
    68°
    Forecast night icon
    Night
    30% Chance of Rain
    46°
    Sunday 5/26
    Day
    68°
    40% Chance of Rain
    Forecast day icon
    Night
    46°
    30% Chance of Rain
    Forecast night icon
    Day Details
    Partly cloudy with a chance of rain. Chance of precipitation 35%. High temperature around 68F. Dew point will be around 37F with an average humidity of 43%. Winds will be 2 mph from the W.
    Night Details
    Mostly cloudy with a slight chance of rain. Chance of precipitation 30%. Low temperature around 46F. Dew point will be around 37F with an average humidity of 53%. Winds will be 2 mph from the N.