Roy, Montana | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast day icon
    Tuesday
    70% Chance of Storms
    60°
    Forecast night icon
    Night
    50% Chance of Storms
    48°
    Tuesday 5/14
    Day
    60°
    70% Chance of Storms
    Forecast day icon
    Night
    48°
    50% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Cooler. Mostly cloudy. Chance of rain showers early in the morning then rain showers likely and chance of thunderstorms in the afternoon. Highs 60 to 65. Northwest winds 10 to 15 mph. Chance of precipitation 70 percent.
    Night Details
    Colder. Mostly cloudy. A 50 percent chance of thunderstorms in the evening. Lows 40 to 45. West winds 5 to 15 mph.
  • Forecast day icon
    Wednesday
    Partly Cloudy
    69°
    Forecast night icon
    Night
    50% Chance of Storms
    53°
    Wednesday 5/15
    Day
    69°
    Partly Cloudy
    Forecast day icon
    Night
    53°
    50% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Partly cloudy in the morning then mostly cloudy with a 20 percent chance of thunderstorms in the afternoon. Highs 65 to 70. West winds 5 to 15 mph.
    Night Details
    Mostly cloudy. Chance of rain showers and slight chance of thunderstorms in the evening then chance of rain after midnight. Lows around 50. West winds 5 to 15 mph. Chance of precipitation 50 percent.
  • Forecast day icon
    Thursday
    40% Chance of Storms
    72°
    Forecast night icon
    Night
    30% Chance of Storms
    52°
    Thursday 5/16
    Day
    72°
    40% Chance of Storms
    Forecast day icon
    Night
    52°
    30% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy. Slight chance of rain in the morning then chance of rain showers and slight chance of thunderstorms in the afternoon. Highs 65 to 70. West winds 5 to 15 mph. Chance of precipitation 40 percent.
    Night Details
    Partly cloudy with chance of rain showers and slight chance of thunderstorms. Lows 45 to 50. Chance of precipitation 30 percent.
  • Forecast day icon
    Friday
    40% Chance of Rain
    68°
    Forecast night icon
    Night
    40% Chance of Rain
    46°
    Friday 5/17
    Day
    68°
    40% Chance of Rain
    Forecast day icon
    Night
    46°
    40% Chance of Rain
    Forecast night icon
    Hourly
    Day Details
    Breezy. Partly cloudy with a 40 percent chance of rain. Highs 65 to 70.
    Night Details
    Mostly cloudy with a 40 percent chance of rain. Lows 40 to 45.
  • Forecast day icon
    Saturday
    50% Chance of Storms
    60°
    Forecast night icon
    Night
    Partly Cloudy
    44°
    Saturday 5/18
    Day
    60°
    50% Chance of Storms
    Forecast day icon
    Night
    44°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Breezy. Mostly cloudy with chance of rain showers and slight chance of thunderstorms. Highs 60 to 65. Chance of precipitation 50 percent.
    Night Details
    Partly cloudy with a 20 percent chance of rain. Lows 40 to 45. Highs 60 to 65.
  • Forecast day icon
    Sunday
    Partly Cloudy
    64°
    Forecast night icon
    Night
    Partly Cloudy
    45°
    Sunday 5/19
    Day
    64°
    Partly Cloudy
    Forecast day icon
    Night
    45°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Partly cloudy with a 20 percent chance of rain. Lows 40 to 45. Highs 60 to 65.
    Night Details
    Partly cloudy with a 20 percent chance of rain. Lows 40 to 45. Highs 60 to 65.
  • Forecast day icon
    Monday
    Partly Cloudy
    65°
    Forecast night icon
    Night
    30% Chance of Rain
    46°
    Monday 5/20
    Day
    65°
    Partly Cloudy
    Forecast day icon
    Night
    46°
    30% Chance of Rain
    Forecast night icon
    Day Details
    Partly cloudy with a 20 percent chance of thunderstorms. Highs 65 to 70.
    Night Details
    Cloudy with a slight chance of rain. Chance of precipitation 25%. Low temperature around 46F. Dew point will be around 38F with an average humidity of 58%. Winds will be 9 mph from the N.
  • Forecast day icon
    Tuesday
    30% Chance of Rain
    65°
    Forecast night icon
    Night
    40% Chance of Rain
    47°
    Tuesday 5/21
    Day
    65°
    30% Chance of Rain
    Forecast day icon
    Night
    47°
    40% Chance of Rain
    Forecast night icon
    Day Details
    Partly cloudy with a slight chance of rain. Chance of precipitation 30%. High temperature around 65F. Dew point will be around 39F with an average humidity of 49%. Winds will be 8 mph from the NW.
    Night Details
    Mostly cloudy with a chance of rain. Chance of precipitation 35%. Low temperature around 47F. Dew point will be around 39F with an average humidity of 58%. Winds will be 5 mph from the NW.
  • Forecast day icon
    Wednesday
    40% Chance of Rain
    64°
    Forecast night icon
    Night
    50% Chance of Rain
    47°
    Wednesday 5/22
    Day
    64°
    40% Chance of Rain
    Forecast day icon
    Night
    47°
    50% Chance of Rain
    Forecast night icon
    Day Details
    Mostly cloudy with a chance of rain. Chance of precipitation 35%. High temperature around 64F. Dew point will be around 39F with an average humidity of 50%. Winds will be 7 mph from the NW.
    Night Details
    Cloudy with a chance of rain. Chance of precipitation 50%. Low temperature around 47F. Dew point will be around 41F with an average humidity of 63%. Winds will be 6 mph from the NW.
  • Forecast day icon
    Thursday
    60% Chance of Rain
    59°
    Forecast night icon
    Night
    40% Chance of Rain
    45°
    Thursday 5/23
    Day
    59°
    60% Chance of Rain
    Forecast day icon
    Night
    45°
    40% Chance of Rain
    Forecast night icon
    Day Details
    Cloudy with a chance of rain. Chance of precipitation 55%. High temperature around 59F. Dew point will be around 41F with an average humidity of 60%. Winds will be 9 mph from the NW.
    Night Details
    Cloudy with a chance of rain. Chance of precipitation 35%. Low temperature around 45F. Dew point will be around 40F with an average humidity of 66%. Winds will be 7 mph from the NW.