Roundup, Montana | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast day icon
    Saturday
    Mostly Sunny
    76°
    Forecast night icon
    Night
    Mostly Clear
    46°
    Saturday 5/11
    Day
    76°
    Mostly Sunny
    Forecast day icon
    Night
    46°
    Mostly Clear
    Forecast night icon
    Hourly
    Day Details
    Mostly sunny. Highs in the upper 70s. West winds 5 to 15 mph.
    Night Details
    Mostly clear. Lows in the mid 40s. West winds 5 to 15 mph.
  • Forecast day icon
    Sunday
    Mostly Sunny
    72°
    Forecast night icon
    Night
    Partly Cloudy
    50°
    Sunday 5/12
    Day
    72°
    Mostly Sunny
    Forecast day icon
    Night
    50°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Mostly sunny. A 20 percent chance of showers and thunderstorms in the afternoon. Highs in the mid 70s. West winds 5 to 15 mph in the morning shifting to the north in the afternoon.
    Night Details
    Partly cloudy. A 20 percent chance of showers and thunderstorms in the evening. Lows in the upper 40s. East winds 5 to 10 mph in the evening shifting to the south overnight.
  • Forecast day icon
    Monday
    50% Chance of Storms
    76°
    Forecast night icon
    Night
    40% Chance of Storms
    50°
    Monday 5/13
    Day
    76°
    50% Chance of Storms
    Forecast day icon
    Night
    50°
    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 upper 70s. West winds 5 to 15 mph. Chance of precipitation 50 percent.
    Night Details
    Mostly cloudy. A 40 percent chance of showers and thunderstorms in the evening. Lows in the upper 40s.
  • Forecast day icon
    Tuesday
    70% Chance of Storms
    63°
    Forecast night icon
    Night
    Mostly Cloudy
    44°
    Tuesday 5/14
    Day
    63°
    70% Chance of Storms
    Forecast day icon
    Night
    44°
    Mostly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Chance of rain 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. A 20 percent chance of rain in the evening. Lows in the mid 40s.
  • Forecast day icon
    Wednesday
    30% Chance of Rain
    70°
    Forecast night icon
    Night
    Partly Cloudy
    48°
    Wednesday 5/15
    Day
    70°
    30% Chance of Rain
    Forecast day icon
    Night
    48°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Partly sunny. A 30 percent chance of rain in the afternoon. Highs in the upper 60s.
    Night Details
    Partly cloudy. A 20 percent chance of rain in the evening. Lows in the mid 40s.
  • Forecast day icon
    Thursday
    40% Chance of Storms
    73°
    Forecast night icon
    Night
    30% Chance of Rain
    47°
    Thursday 5/16
    Day
    73°
    40% Chance of Storms
    Forecast day icon
    Night
    47°
    30% Chance of Rain
    Forecast night icon
    Hourly
    Day Details
    Mostly sunny. Slight chance of rain in the morning then chance of rain showers and slight chance of thunderstorms in the afternoon. Highs in the lower 70s. Chance of precipitation 40 percent.
    Night Details
    Partly cloudy. Chance of rain in the evening then slight chance of rain overnight. Lows in the upper 40s. Chance of precipitation 30 percent.
  • Forecast day icon
    Friday
    Mostly Sunny
    66°
    Forecast night icon
    Night
    Partly Cloudy
    48°
    Friday 5/17
    Day
    66°
    Mostly Sunny
    Forecast day icon
    Night
    48°
    Partly Cloudy
    Forecast night icon
    Day Details
    Mostly sunny. Slight chance of rain in the morning then slight chance of showers and thunderstorms in the afternoon. Highs in the lower 70s. Chance of precipitation 20 percent.
    Night Details
    Partly cloudy with a 20 percent chance of rain. Lows in the lower 40s.
  • Forecast day icon
    Saturday
    Mostly Sunny
    65°
    Forecast night icon
    Night
    Clear
    44°
    Saturday 5/18
    Day
    65°
    Mostly Sunny
    Forecast day icon
    Night
    44°
    Clear
    Forecast night icon
    Day Details
    Mostly sunny. A 20 percent chance of rain in the afternoon. Highs in the upper 60s.
    Night Details
    Clear. Low temperature around 44F. Dew point will be around 34F with an average humidity of 51%. Winds will be 7 mph from the N.
  • Forecast day icon
    Sunday
    Mostly Cloudy
    61°
    Forecast night icon
    Night
    Partly Cloudy
    43°
    Sunday 5/19
    Day
    61°
    Mostly Cloudy
    Forecast day icon
    Night
    43°
    Partly Cloudy
    Forecast night icon
    Day Details
    Mostly cloudy. High temperature around 61F. Dew point will be around 38F with an average humidity of 51%. Winds will be 4 mph from the N.
    Night Details
    Partly cloudy. Low temperature around 43F. Dew point will be around 35F with an average humidity of 55%. Winds will be 3 mph from the N.
  • 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
    Sunny with a chance of rain. Chance of precipitation 35%. High temperature around 64F. Dew point will be around 37F with an average humidity of 46%. Winds will be 3 mph from the SW.
    Night Details
    Partly cloudy with a slight chance of rain. Chance of precipitation 30%. Low temperature around 44F. Dew point will be around 35F with an average humidity of 54%. Winds will be 3 mph from the W.