Roy, Montana | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast day icon
    Monday
    50% Chance of Storms
    57°
    Forecast night icon
    Night
    Partly Cloudy
    40°
    Monday 5/20
    Day
    57°
    50% Chance of Storms
    Forecast day icon
    Night
    40°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Partly cloudy in the morning then mostly cloudy with chance of rain showers and slight chance of thunderstorms in the afternoon. Highs 55 to 60. Northwest winds up to 10 mph. Chance of precipitation 50 percent.
    Night Details
    Partly cloudy. Lows 35 to 40. West winds up to 10 mph.
  • Forecast day icon
    Tuesday
    50% Chance of Storms
    62°
    Forecast night icon
    Night
    Partly Cloudy
    44°
    Tuesday 5/21
    Day
    62°
    50% Chance of Storms
    Forecast day icon
    Night
    44°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Partly cloudy with slight chance of rain showers in the morning then mostly cloudy with chance of rain showers and slight chance of thunderstorms in the afternoon. Highs 60 to 65. West winds up to 10 mph. Chance of precipitation 50 percent.
    Night Details
    Partly cloudy. A 20 percent chance of thunderstorms in the evening. Lows around 40. Southwest winds up to 10 mph.
  • Forecast day icon
    Wednesday
    70% Chance of Storms
    63°
    Forecast night icon
    Night
    80% Chance of Storms
    46°
    Wednesday 5/22
    Day
    63°
    70% Chance of Storms
    Forecast day icon
    Night
    46°
    80% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy. Rain showers likely and chance of thunderstorms in the afternoon. Highs 60 to 65. South winds up to 10 mph shifting to the east in the afternoon. Chance of precipitation 70 percent.
    Night Details
    Rain showers and slight chance of thunderstorms. Lows 40 to 45. Chance of precipitation 80 percent.
  • Forecast day icon
    Thursday
    Thunderstorms
    51°
    Forecast night icon
    Night
    50% Chance of Rain
    41°
    Thursday 5/23
    Day
    51°
    Thunderstorms
    Forecast day icon
    Night
    41°
    50% Chance of Rain
    Forecast night icon
    Hourly
    Day Details
    Rain showers and slight chance of thunderstorms. Highs 50 to 55. Chance of precipitation 90 percent.
    Night Details
    Mostly cloudy with a 50 percent chance of rain. Lows 35 to 40.
  • Forecast day icon
    Friday
    40% Chance of Storms
    64°
    Forecast night icon
    Night
    Mostly Cloudy
    48°
    Friday 5/24
    Day
    64°
    40% Chance of Storms
    Forecast day icon
    Night
    48°
    Mostly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Warmer. Mostly cloudy with chance of rain showers and slight chance of thunderstorms. Highs 60 to 65. Chance of precipitation 40 percent.
    Night Details
    Mostly cloudy with a 20 percent chance of rain. Lows 40 to 45.
  • Forecast day icon
    Saturday
    50% Chance of Storms
    61°
    Forecast night icon
    Night
    50% Chance of Storms
    45°
    Saturday 5/25
    Day
    61°
    50% Chance of Storms
    Forecast day icon
    Night
    45°
    50% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy with chance of rain showers and slight chance of thunderstorms. Highs 60 to 65. Lows 40 to 45. Chance of precipitation 50 percent.
    Night Details
    Mostly cloudy with chance of rain showers and slight chance of thunderstorms. Highs 60 to 65. Lows 40 to 45. Chance of precipitation 50 percent.
  • Forecast day icon
    Sunday
    50% Chance of Storms
    59°
    Forecast night icon
    Night
    30% Chance of Rain
    44°
    Sunday 5/26
    Day
    59°
    50% Chance of Storms
    Forecast day icon
    Night
    44°
    30% Chance of Rain
    Forecast night icon
    Day Details
    Mostly cloudy with chance of rain showers and slight chance of thunderstorms. Highs 60 to 65. Lows 40 to 45. Chance of precipitation 50 percent.
    Night Details
    Partly cloudy with a slight chance of rain. Chance of precipitation 30%. Low temperature around 44F. Dew point will be around 39F with an average humidity of 67%. Winds will be 11 mph from the W.
  • Forecast day icon
    Monday
    Mostly Sunny
    66°
    Forecast night icon
    Night
    Partly Cloudy
    47°
    Monday 5/27
    Day
    66°
    Mostly Sunny
    Forecast day icon
    Night
    47°
    Partly Cloudy
    Forecast night icon
    Day Details
    Mostly sunny. High temperature around 66F. Dew point will be around 41F with an average humidity of 55%. Winds will be 11 mph from the NW.
    Night Details
    Partly cloudy. Low temperature around 47F. Dew point will be around 42F with an average humidity of 64%. Winds will be 7 mph from the W.
  • Forecast day icon
    Tuesday
    Sunny
    71°
    Forecast night icon
    Night
    Clear
    50°
    Tuesday 5/28
    Day
    71°
    Sunny
    Forecast day icon
    Night
    50°
    Clear
    Forecast night icon
    Day Details
    Sunny. High temperature around 71F. Dew point will be around 43F with an average humidity of 51%. Winds will be 4 mph from the NW.
    Night Details
    Clear. Low temperature around 50F. Dew point will be around 44F with an average humidity of 60%. Winds will be 4 mph from the SW.
  • Forecast day icon
    Wednesday
    Sunny
    76°
    Forecast night icon
    Night
    Clear
    54°
    Wednesday 5/29
    Day
    76°
    Sunny
    Forecast day icon
    Night
    54°
    Clear
    Forecast night icon
    Day Details
    Sunny. High temperature around 76F. Dew point will be around 45F with an average humidity of 47%. Winds will be 3 mph from the SW.
    Night Details
    Clear. Low temperature around 54F. Dew point will be around 46F with an average humidity of 55%. Winds will be 5 mph from the S.