Roundup, Montana | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast night icon
    Night
    Mostly Clear
    37°
    Sunday 5/19
    Forecast night icon
    37°
    Mostly Clear
    Hourly
    Night Details
    Mostly clear. Low temperature around 37F. Dew point will be around 28F with an average humidity of 68%. Winds will be 3 mph from the NW.
  • Forecast day icon
    Monday
    40% Chance of Storms
    58°
    Forecast night icon
    Night
    Mostly Cloudy
    39°
    Monday 5/20
    Day
    58°
    40% Chance of Storms
    Forecast day icon
    Night
    39°
    Mostly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy. Chance of rain early in the afternoon. Chance of rain showers and isolated thunderstorms late in the afternoon. Highs in the upper 50s. West winds 5 to 10 mph in the morning shifting to the north in the afternoon. Chance of precipitation 40 percent.
    Night Details
    Mostly cloudy. Slight chance of rain showers and isolated thunderstorms early in the evening then slight chance of rain late in the evening. Lows in the upper 30s. Northwest winds 5 to 10 mph. Chance of precipitation 20 percent.
  • Forecast day icon
    Tuesday
    40% Chance of Storms
    61°
    Forecast night icon
    Night
    Partly Cloudy
    42°
    Tuesday 5/21
    Day
    61°
    40% Chance of Storms
    Forecast day icon
    Night
    42°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Partly sunny. Chance of rain showers and isolated thunderstorms in the afternoon. Highs in the lower 60s. North winds 5 to 10 mph. Chance of precipitation 40 percent.
    Night Details
    Partly cloudy. A 20 percent chance of rain in the evening. Lows in the lower 40s. Southwest winds 5 to 10 mph.
  • Forecast day icon
    Wednesday
    40% Chance of Rain
    65°
    Forecast night icon
    Night
    60% Chance of Storms
    46°
    Wednesday 5/22
    Day
    65°
    40% Chance of Rain
    Forecast day icon
    Night
    46°
    60% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Partly sunny. A 40 percent chance of rain in the afternoon. Highs in the upper 60s. Southwest winds 5 to 10 mph.
    Night Details
    Rain showers likely and isolated thunderstorms in the evening then chance of rain overnight. Lows in the lower 40s. Chance of precipitation 60 percent.
  • Forecast day icon
    Thursday
    80% Chance of Storms
    49°
    Forecast night icon
    Night
    60% Chance of Storms
    37°
    Thursday 5/23
    Day
    49°
    80% Chance of Storms
    Forecast day icon
    Night
    37°
    60% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Rain showers likely in the morning then rain showers and slight chance of thunderstorms in the afternoon. Cooler. Highs in the mid 50s. Chance of precipitation 80 percent.
    Night Details
    Rain showers likely and slight chance of thunderstorms in the evening then chance of rain showers overnight. Lows in the upper 30s. Chance of precipitation 60 percent.
  • Forecast day icon
    Friday
    40% Chance of Storms
    64°
    Forecast night icon
    Night
    Mostly Cloudy
    45°
    Friday 5/24
    Day
    64°
    40% Chance of Storms
    Forecast day icon
    Night
    45°
    Mostly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Partly sunny. Chance of rain showers in the morning then 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. Lows in the lower 40s.
  • Forecast day icon
    Saturday
    40% Chance of Storms
    69°
    Forecast night icon
    Night
    40% Chance of Storms
    43°
    Saturday 5/25
    Day
    69°
    40% Chance of Storms
    Forecast day icon
    Night
    43°
    40% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Partly sunny. Chance of rain showers and slight chance of thunderstorms in the afternoon. Highs around 70. Chance of precipitation 40 percent.
    Night Details
    Mostly cloudy. Chance of rain showers and slight chance of thunderstorms in the evening then slight chance of rain showers overnight. Lows in the lower 40s. Chance of precipitation 40 percent.
  • Forecast day icon
    Sunday
    40% Chance Rain Showers
    61°
    Forecast night icon
    Night
    30% Chance of Rain
    43°
    Sunday 5/26
    Day
    61°
    40% Chance Rain Showers
    Forecast day icon
    Night
    43°
    30% Chance of Rain
    Forecast night icon
    Day Details
    Partly sunny. Slight chance of rain showers in the morning then chance of rain showers in the afternoon. Highs in the mid 60s. Chance of precipitation 40 percent.
    Night Details
    Mostly clear with a slight chance of rain. Chance of precipitation 25%. Low temperature around 43F. Dew point will be around 33F with an average humidity of 55%. Winds will be 7 mph from the NW.
  • Forecast day icon
    Monday
    Mostly Sunny
    65°
    Forecast night icon
    Night
    Partly Cloudy
    45°
    Monday 5/27
    Day
    65°
    Mostly Sunny
    Forecast day icon
    Night
    45°
    Partly Cloudy
    Forecast night icon
    Day Details
    Mostly sunny. High temperature around 65F. Dew point will be around 37F with an average humidity of 45%. Winds will be 7 mph from the NW.
    Night Details
    Partly cloudy. Low temperature around 45F. Dew point will be around 36F with an average humidity of 54%. Winds will be 4 mph from the SW.
  • Forecast day icon
    Tuesday
    Sunny
    70°
    Forecast night icon
    Night
    Clear
    48°
    Tuesday 5/28
    Day
    70°
    Sunny
    Forecast day icon
    Night
    48°
    Clear
    Forecast night icon
    Day Details
    Sunny. High temperature around 70F. Dew point will be around 38F with an average humidity of 41%. Winds will be 3 mph from the NW.
    Night Details
    Clear. Low temperature around 48F. Dew point will be around 37F with an average humidity of 49%. Winds will be 2 mph from the SW.
  • Forecast day icon
    Wednesday
    Sunny
    76°
    Forecast night icon
    Night
    Clear
    51°
    Wednesday 5/29
    Day
    76°
    Sunny
    Forecast day icon
    Night
    51°
    Clear
    Forecast night icon
    Day Details
    Sunny. High temperature around 76F. Dew point will be around 40F with an average humidity of 38%. Winds will be 3 mph from the SW.
    Night Details
    Clear. Low temperature around 51F. Dew point will be around 40F with an average humidity of 48%. Winds will be 3 mph from the SE.