Roy, Montana | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast night icon
    Night
    Partly Cloudy
    52°
    Saturday 5/11
    Forecast night icon
    52°
    Partly Cloudy
    Hourly
    Night Details
    Partly cloudy. A 20 percent chance of thunderstorms after midnight. Some thunderstorms may produce heavy rainfall after midnight. Lows 45 to 50. West winds 5 to 10 mph.
  • Forecast day icon
    Sunday
    Mostly Cloudy
    73°
    Forecast night icon
    Night
    Partly Cloudy
    54°
    Sunday 5/12
    Day
    73°
    Mostly Cloudy
    Forecast day icon
    Night
    54°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy in the morning then sunny with a 20 percent chance of thunderstorms in the afternoon. Some thunderstorms may produce heavy rainfall in the afternoon. Highs 70 to 75. Northwest winds 5 to 15 mph.
    Night Details
    Partly cloudy. Slight chance of thunderstorms in the evening then slight chance of rain after midnight. Some thunderstorms may produce heavy rainfall in the evening. Lows around 50. South winds 5 to 15 mph. Chance of precipitation 20 percent.
  • Forecast day icon
    Monday
    Partly Cloudy
    75°
    Forecast night icon
    Night
    40% Chance of Storms
    53°
    Monday 5/13
    Day
    75°
    Partly Cloudy
    Forecast day icon
    Night
    53°
    40% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Sunny in the morning then partly cloudy with a 20 percent chance of rain in the afternoon. Highs around 75. West winds 10 to 20 mph.
    Night Details
    Mostly cloudy. Chance of rain showers and slight chance of thunderstorms in the evening then slight chance of thunderstorms after midnight. Lows 45 to 50. West winds 10 to 15 mph. Chance of precipitation 40 percent.
  • Forecast day icon
    Tuesday
    70% Chance of Storms
    62°
    Forecast night icon
    Night
    Partly Cloudy
    47°
    Tuesday 5/14
    Day
    62°
    70% Chance of Storms
    Forecast day icon
    Night
    47°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Breezy cooler. Rain showers likely and chance of thunderstorms. Highs 60 to 65. Chance of precipitation 70 percent.
    Night Details
    Partly cloudy with a 20 percent chance of rain. Lows 40 to 45.
  • Forecast day icon
    Wednesday
    30% Chance of Storms
    68°
    Forecast night icon
    Night
    Partly Cloudy
    52°
    Wednesday 5/15
    Day
    68°
    30% Chance of Storms
    Forecast day icon
    Night
    52°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Partly cloudy with chance of rain showers and slight chance of thunderstorms. Highs 65 to 70. Chance of precipitation 30 percent.
    Night Details
    Partly cloudy with a 20 percent chance of rain. Lows 45 to 50.
  • Forecast day icon
    Thursday
    50% Chance of Rain
    67°
    Forecast night icon
    Night
    40% Chance of Rain
    48°
    Thursday 5/16
    Day
    67°
    50% Chance of Rain
    Forecast day icon
    Night
    48°
    40% Chance of Rain
    Forecast night icon
    Hourly
    Day Details
    Breezy. Mostly cloudy with a 50 percent chance of rain. Highs around 70.
    Night Details
    Partly cloudy with a 40 percent chance of rain. Lows around 45.
  • Forecast day icon
    Friday
    Partly Cloudy
    59°
    Forecast night icon
    Night
    Mostly Cloudy
    47°
    Friday 5/17
    Day
    59°
    Partly Cloudy
    Forecast day icon
    Night
    47°
    Mostly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Partly cloudy with a 20 percent chance of thunderstorms. Highs 60 to 65.
    Night Details
    Mostly cloudy with a 20 percent chance of rain. Lows 40 to 45.
  • Forecast day icon
    Saturday
    40% Chance of Storms
    65°
    Forecast night icon
    Night
    Clear
    49°
    Saturday 5/18
    Day
    65°
    40% Chance of Storms
    Forecast day icon
    Night
    49°
    Clear
    Forecast night icon
    Day Details
    Mostly cloudy with chance of rain showers and slight chance of thunderstorms. Highs around 60. Chance of precipitation 40 percent.
    Night Details
    Clear. Low temperature around 49F. Dew point will be around 36F with an average humidity of 52%. Winds will be 5 mph from the NW.
  • Forecast day icon
    Sunday
    Mostly Sunny
    68°
    Forecast night icon
    Night
    30% Chance of Rain
    50°
    Sunday 5/19
    Day
    68°
    Mostly Sunny
    Forecast day icon
    Night
    50°
    30% Chance of Rain
    Forecast night icon
    Day Details
    Mostly sunny. High temperature around 68F. Dew point will be around 38F with an average humidity of 43%. Winds will be 4 mph from the W.
    Night Details
    Partly cloudy with a slight chance of rain. Chance of precipitation 30%. Low temperature around 50F. Dew point will be around 40F with an average humidity of 54%. Winds will be 5 mph from the W.
  • Forecast day icon
    Monday
    30% Chance of Rain
    65°
    Forecast night icon
    Night
    40% Chance of Rain
    48°
    Monday 5/20
    Day
    65°
    30% Chance of Rain
    Forecast day icon
    Night
    48°
    40% Chance of Rain
    Forecast night icon
    Day Details
    Mostly sunny with a slight chance of rain. Chance of precipitation 30%. High temperature around 65F. Dew point will be around 40F with an average humidity of 48%. Winds will be 8 mph from the W.
    Night Details
    Partly cloudy with a chance of rain. Chance of precipitation 35%. Low temperature around 48F. Dew point will be around 39F with an average humidity of 57%. Winds will be 8 mph from the W.