Roy, Montana | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast night icon
    Night
    70% Chance of Storms
    46°
    Wednesday 5/8
    Forecast night icon
    46°
    70% Chance of Storms
    Hourly
    Night Details
    Cloudy. Rain showers likely and slight chance of thunderstorms in the evening then chance of rain after midnight. Patchy fog through the night. Lows 35 to 45. Northwest winds 5 to 15 mph. Chance of precipitation 70 percent.
  • Forecast day icon
    Thursday
    50% Chance of Rain
    59°
    Forecast night icon
    Night
    Mostly Clear
    42°
    Thursday 5/9
    Day
    59°
    50% Chance of Rain
    Forecast day icon
    Night
    42°
    Mostly Clear
    Forecast night icon
    Hourly
    Day Details
    Patchy fog in the morning. Mostly cloudy with a 50 percent chance of rain. Highs 50 to 60. Northwest winds 5 to 15 mph.
    Night Details
    Mostly clear. Lows 35 to 40. West winds 5 to 15 mph.
  • Forecast day icon
    Friday
    Sunny
    66°
    Forecast night icon
    Night
    Mostly Clear
    44°
    Friday 5/10
    Day
    66°
    Sunny
    Forecast day icon
    Night
    44°
    Mostly Clear
    Forecast night icon
    Hourly
    Day Details
    Sunny. Highs 60 to 65. West winds 5 to 10 mph.
    Night Details
    Mostly clear. Lows 40 to 45. Southwest winds 5 to 10 mph.
  • Forecast day icon
    Saturday
    Mostly Sunny
    74°
    Forecast night icon
    Night
    Mostly Clear
    51°
    Saturday 5/11
    Day
    74°
    Mostly Sunny
    Forecast day icon
    Night
    51°
    Mostly Clear
    Forecast night icon
    Hourly
    Day Details
    Mostly clear. Highs 70 to 75. Lows 45 to 50.
    Night Details
    Mostly clear. Highs 70 to 75. Lows 45 to 50.
  • Forecast day icon
    Sunday
    Sunny
    73°
    Forecast night icon
    Night
    Partly Cloudy
    54°
    Sunday 5/12
    Day
    73°
    Sunny
    Forecast day icon
    Night
    54°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Sunny with a 20 percent chance of thunderstorms. Highs around 75.
    Night Details
    Partly cloudy with a 20 percent chance of thunderstorms. Lows 50 to 55. Highs 70 to 75.
  • Forecast day icon
    Monday
    Partly Cloudy
    73°
    Forecast night icon
    Night
    Partly Cloudy
    51°
    Monday 5/13
    Day
    73°
    Partly Cloudy
    Forecast day icon
    Night
    51°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Partly cloudy with a 20 percent chance of thunderstorms. Lows 50 to 55. Highs 70 to 75.
    Night Details
    Partly cloudy with a 20 percent chance of rain. Lows 45 to 50.
  • Forecast day icon
    Tuesday
    50% Chance of Storms
    63°
    Forecast night icon
    Night
    40% Chance of Rain
    47°
    Tuesday 5/14
    Day
    63°
    50% Chance of Storms
    Forecast day icon
    Night
    47°
    40% Chance of Rain
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy with chance of rain showers and slight chance of thunderstorms. Highs 65 to 70. Chance of precipitation 50 percent.
    Night Details
    Mostly cloudy with a 40 percent chance of rain. Lows 40 to 45.
  • Forecast day icon
    Wednesday
    40% Chance of Storms
    66°
    Forecast night icon
    Night
    Mostly Clear
    46°
    Wednesday 5/15
    Day
    66°
    40% Chance of Storms
    Forecast day icon
    Night
    46°
    Mostly Clear
    Forecast night icon
    Day Details
    Partly cloudy with chance of rain showers and slight chance of thunderstorms. Highs 60 to 65. Chance of precipitation 40 percent.
    Night Details
    Mostly clear. Low temperature around 46F. Dew point will be around 38F with an average humidity of 56%. Winds will be 10 mph from the W.
  • Forecast day icon
    Thursday
    Partly Cloudy
    67°
    Forecast night icon
    Night
    Partly Cloudy
    44°
    Thursday 5/16
    Day
    67°
    Partly Cloudy
    Forecast day icon
    Night
    44°
    Partly Cloudy
    Forecast night icon
    Day Details
    Partly cloudy. High temperature around 67F. Dew point will be around 39F with an average humidity of 47%. Winds will be 10 mph from the W.
    Night Details
    Partly cloudy. Low temperature around 44F. Dew point will be around 38F with an average humidity of 58%. Winds will be 10 mph from the W.
  • Forecast day icon
    Friday
    Sunny
    64°
    Forecast night icon
    Night
    Clear
    45°
    Friday 5/17
    Day
    64°
    Sunny
    Forecast day icon
    Night
    45°
    Clear
    Forecast night icon
    Day Details
    Sunny. High temperature around 64F. Dew point will be around 35F with an average humidity of 44%. Winds will be 14 mph from the W.
    Night Details
    Clear. Low temperature around 45F. Dew point will be around 38F with an average humidity of 60%. Winds will be 8 mph from the W.
  • Forecast day icon
    Saturday
    Sunny
    66°
    Forecast night icon
    Night
    Mostly Clear
    47°
    Saturday 5/18
    Day
    66°
    Sunny
    Forecast day icon
    Night
    47°
    Mostly Clear
    Forecast night icon
    Day Details
    Sunny. High temperature around 66F. Dew point will be around 39F with an average humidity of 50%. Winds will be 5 mph from the W.
    Night Details
    Mostly clear. Low temperature around 47F. Dew point will be around 40F with an average humidity of 60%. Winds will be 3 mph from the W.