Roundup, Montana | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast night icon
    Night
    Increasing Clouds
    36°
    Sunday 5/19
    Forecast night icon
    36°
    Increasing Clouds
    Hourly
    Night Details
    Increasing clouds. Colder. Lows in the mid 30s. Southwest winds 5 to 10 mph.
  • Forecast day icon
    Monday
    40% Chance of Storms
    57°
    Forecast night icon
    Night
    Mostly Cloudy
    42°
    Monday 5/20
    Day
    57°
    40% Chance of Storms
    Forecast day icon
    Night
    42°
    Mostly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Partly sunny. Chance of rain showers early in the afternoon. Chance of rain showers and slight chance of thunderstorms late in the afternoon. Highs in the upper 50s. Southwest 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 showers and thunderstorms early in the evening then slight chance of rain late in the evening. Lows in the upper 30s. North winds 5 to 10 mph. Chance of precipitation 20 percent.
  • Forecast day icon
    Tuesday
    40% Chance of Storms
    60°
    Forecast night icon
    Night
    Partly Cloudy
    40°
    Tuesday 5/21
    Day
    60°
    40% Chance of Storms
    Forecast day icon
    Night
    40°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Partly sunny. Chance of rain showers and slight chance of thunderstorms in the afternoon. Highs in the lower 60s. North winds 5 to 10 mph in the morning shifting to the east in the afternoon. Chance of precipitation 40 percent.
    Night Details
    Partly cloudy. Lows around 40. Southwest winds 5 to 10 mph.
  • Forecast day icon
    Wednesday
    30% Chance Rain Showers
    66°
    Forecast night icon
    Night
    60% Chance of Storms
    45°
    Wednesday 5/22
    Day
    66°
    30% Chance Rain Showers
    Forecast day icon
    Night
    45°
    60% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Increasing clouds. A 30 percent chance of rain showers in the afternoon. Highs in the upper 60s.
    Night Details
    Rain showers likely and slight chance of thunderstorms in the evening then chance of rain showers overnight. Lows in the lower 40s. Chance of precipitation 60 percent.
  • Forecast day icon
    Thursday
    80% Chance of Storms
    57°
    Forecast night icon
    Night
    60% Chance Rain Showers
    39°
    Thursday 5/23
    Day
    57°
    80% Chance of Storms
    Forecast day icon
    Night
    39°
    60% Chance Rain Showers
    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 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
    62°
    Forecast night icon
    Night
    Partly Cloudy
    39°
    Friday 5/24
    Day
    62°
    40% Chance of Storms
    Forecast day icon
    Night
    39°
    Partly 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 lower 60s. Chance of precipitation 40 percent.
    Night Details
    Partly cloudy. A 20 percent chance of rain showers in the evening. Lows around 40.
  • Forecast day icon
    Saturday
    30% Chance of Storms
    73°
    Forecast night icon
    Night
    30% Chance of Storms
    44°
    Saturday 5/25
    Day
    73°
    30% Chance of Storms
    Forecast day icon
    Night
    44°
    30% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Mostly sunny. Chance of rain showers and slight chance of thunderstorms in the afternoon. Highs in the lower 70s. Chance of precipitation 30 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 mid 40s. Chance of precipitation 30 percent.
  • Forecast day icon
    Sunday
    40% Chance of Storms
    63°
    Forecast night icon
    Night
    30% Chance of Rain
    44°
    Sunday 5/26
    Day
    63°
    40% Chance of Storms
    Forecast day icon
    Night
    44°
    30% Chance of Rain
    Forecast night icon
    Day Details
    Partly sunny. Slight chance of rain showers in the morning then chance of rain showers and slight chance of thunderstorms in the afternoon. Highs in the upper 60s. Chance of precipitation 40 percent.
    Night Details
    Mostly cloudy with a slight chance of rain. Chance of precipitation 30%. Low temperature around 44F. Dew point will be around 34F with an average humidity of 54%. Winds will be 7 mph from the W.
  • Forecast day icon
    Monday
    30% Chance of Rain
    65°
    Forecast night icon
    Night
    Partly Cloudy
    45°
    Monday 5/27
    Day
    65°
    30% Chance of Rain
    Forecast day icon
    Night
    45°
    Partly Cloudy
    Forecast night icon
    Day Details
    Partly cloudy with a slight chance of rain. Chance of precipitation 25%. High temperature around 65F. Dew point will be around 35F with an average humidity of 42%. Winds will be 8 mph from the W.
    Night Details
    Partly cloudy. Low temperature around 45F. Dew point will be around 35F with an average humidity of 52%. Winds will be 5 mph from the NW.
  • Forecast day icon
    Tuesday
    Sunny
    71°
    Forecast night icon
    Night
    Clear
    48°
    Tuesday 5/28
    Day
    71°
    Sunny
    Forecast day icon
    Night
    48°
    Clear
    Forecast night icon
    Day Details
    Sunny. High temperature around 71F. Dew point will be around 36F with an average humidity of 39%. Winds will be 5 mph from the SW.
    Night Details
    Clear. Low temperature around 48F. Dew point will be around 36F with an average humidity of 46%. Winds will be 2 mph from the S.