Roundup, Montana | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast night icon
    Night
    Mostly Clear
    45°
    Friday 5/10
    Forecast night icon
    45°
    Mostly Clear
    Hourly
    Night Details
    Mostly clear. Lows in the lower 40s. Southwest winds 5 to 10 mph.
  • Forecast day icon
    Saturday
    Mostly Sunny
    76°
    Forecast night icon
    Night
    Partly Cloudy
    50°
    Saturday 5/11
    Day
    76°
    Mostly Sunny
    Forecast day icon
    Night
    50°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Mostly sunny. Highs in the mid 70s. West winds 5 to 15 mph.
    Night Details
    Partly cloudy. A 20 percent chance of rain showers after 3 am. Lows in the upper 40s. West winds 5 to 10 mph.
  • Forecast day icon
    Sunday
    30% Chance of Storms
    70°
    Forecast night icon
    Night
    Partly Cloudy
    49°
    Sunday 5/12
    Day
    70°
    30% Chance of Storms
    Forecast day icon
    Night
    49°
    Partly Cloudy
    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. West winds 5 to 10 mph in the morning shifting to the north 5 to 15 mph in the afternoon. Chance of precipitation 30 percent.
    Night Details
    Partly cloudy. Lows in the upper 40s. East winds 5 to 10 mph in the evening shifting to the south overnight.
  • Forecast day icon
    Monday
    40% Chance of Storms
    75°
    Forecast night icon
    Night
    40% Chance of Storms
    49°
    Monday 5/13
    Day
    75°
    40% Chance of Storms
    Forecast day icon
    Night
    49°
    40% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Sunny in the morning then partly sunny with chance of rain showers and slight chance of thunderstorms in the afternoon. Highs in the mid 70s. 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 upper 40s. Chance of precipitation 40 percent.
  • Forecast day icon
    Tuesday
    70% Chance of Storms
    61°
    Forecast night icon
    Night
    30% Chance Rain Showers
    45°
    Tuesday 5/14
    Day
    61°
    70% Chance of Storms
    Forecast day icon
    Night
    45°
    30% Chance Rain Showers
    Forecast night icon
    Hourly
    Day Details
    Chance of rain showers in the morning then rain showers likely and slight chance of thunderstorms in the afternoon. Cooler. Highs in the mid 60s. Chance of precipitation 70 percent.
    Night Details
    Mostly cloudy. Chance of rain showers in the evening then slight chance of rain showers overnight. Lows in the lower 40s. Chance of precipitation 30 percent.
  • Forecast day icon
    Wednesday
    40% Chance of Storms
    62°
    Forecast night icon
    Night
    30% Chance Rain Showers
    48°
    Wednesday 5/15
    Day
    62°
    40% Chance of Storms
    Forecast day icon
    Night
    48°
    30% Chance Rain Showers
    Forecast night icon
    Hourly
    Day Details
    Mostly 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 mid 60s. Chance of precipitation 40 percent.
    Night Details
    Partly cloudy. Chance of rain showers in the evening then slight chance of rain showers overnight. Lows in the mid 40s. Chance of precipitation 30 percent.
  • Forecast day icon
    Thursday
    30% Chance of Storms
    64°
    Forecast night icon
    Night
    Partly Cloudy
    43°
    Thursday 5/16
    Day
    64°
    30% Chance of Storms
    Forecast day icon
    Night
    43°
    Partly Cloudy
    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
    Partly cloudy. A 20 percent chance of rain showers in the evening. Lows in the upper 40s.
  • Forecast day icon
    Friday
    Mostly Sunny
    66°
    Forecast night icon
    Night
    30% Chance of Rain
    45°
    Friday 5/17
    Day
    66°
    Mostly Sunny
    Forecast day icon
    Night
    45°
    30% Chance of Rain
    Forecast night icon
    Day Details
    Mostly sunny. A 20 percent chance of rain showers in the afternoon. Highs around 70.
    Night Details
    Clear with a slight chance of rain. Chance of precipitation 25%. Low temperature around 45F. Dew point will be around 36F with an average humidity of 55%. Winds will be 5 mph from the N.
  • Forecast day icon
    Saturday
    30% Chance of Rain
    64°
    Forecast night icon
    Night
    30% Chance of Rain
    44°
    Saturday 5/18
    Day
    64°
    30% Chance of Rain
    Forecast day icon
    Night
    44°
    30% Chance of Rain
    Forecast night icon
    Day Details
    Sunny with a slight chance of rain. Chance of precipitation 30%. High temperature around 64F. Dew point will be around 38F with an average humidity of 49%. Winds will be 4 mph from the NW.
    Night Details
    Clear with a slight chance of rain. Chance of precipitation 25%. Low temperature around 44F. Dew point will be around 38F with an average humidity of 59%. Winds will be 2 mph from the N.
  • Forecast day icon
    Sunday
    30% Chance of Rain
    65°
    Forecast night icon
    Night
    30% Chance of Rain
    46°
    Sunday 5/19
    Day
    65°
    30% Chance of Rain
    Forecast day icon
    Night
    46°
    30% Chance of Rain
    Forecast night icon
    Day Details
    Mostly sunny with a slight chance of rain. Chance of precipitation 25%. High temperature around 65F. Dew point will be around 40F with an average humidity of 50%. Winds will be 2 mph from the N.
    Night Details
    Mostly clear with a slight chance of rain. Chance of precipitation 30%. Low temperature around 46F. Dew point will be around 39F with an average humidity of 59%. Winds will be 2 mph from the N.