10-Day Weather Forecast - Roy, MT

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  • |21°F
    Mostly Clear
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    Tonight

    21°F

    Mostly clear. Lows 12 to 20. Southwest winds 5 to 15 mph.

    Hourly details
  • Day

    53°F

    Breezy. Not as cool. Partly sunny. Highs in the lower 50s. Southwest winds 5 to 15 mph increasing to 10 to 25 mph in the afternoon. Gusts up to 40 mph.

    Night

    31°F

    Breezy. Not as cold. Cloudy with a 50 percent chance of rain and snow. Lows in the lower 30s. West winds 15 to 25 mph with gusts to around 45 mph.

    Hourly details
  • Day

    39°F

    Mostly cloudy with chance of snow in the morning then mostly sunny with slight chance of snow in the afternoon. Highs in the lower 40s. Northwest winds 10 to 15 mph with gusts to around 40 mph. Chance of snow 50 percent.

    Night

    25°F

    Mostly cloudy with a 50 percent chance of snow and rain. Lows in the upper 20s. Southwest winds 5 to 15 mph. Gusts up to 35 mph after midnight.

    Hourly details
  • Day

    44°F

    Windy. Mostly sunny. A 20 percent chance of snow and rain in the morning. Highs in the upper 40s.

    Night

    31°F

    Windy. Mostly clear. Lows in the lower 30s.

    Hourly details
  • Day

    49°F

    Windy. Mostly sunny. Highs in the lower 50s.

    Night

    35°F

    Windy. Mostly cloudy in the evening then partly cloudy with a 20 percent chance of snow after midnight. Lows in the lower 30s.

    Hourly details
  • Day

    45°F

    Breezy colder. Mostly cloudy. A 50 percent chance of snow. Highs in the lower 40s. Lows around 14.

    Night

    14°F

    Breezy colder. Mostly cloudy. A 50 percent chance of snow. Highs in the lower 40s. Lows around 14.

    Hourly details
  • Weekend Weather

  • Day

    24°F

    Colder. Mostly cloudy. Chance of snow in the morning then slight chance of snow in the afternoon. Highs in the upper 20s. Chance of snow 50 percent.

    Night

    13°F

    Mostly cloudy. Lows around 12. Highs in the lower 30s.

    Hourly details
  • Day

    32°F

    Mostly cloudy. Lows around 12. Highs in the lower 30s.

    Night

    18°F

    Partly cloudy. Low temperature around 18F. Dew point will be around 10F with an average humidity of 68%. Winds will be 5 mph from the W.

  • Day

    32°F

    Sunny. High temperature around 32F. Dew point will be around 13F with an average humidity of 51%. Winds will be 7 mph from the NW.

    Night

    18°F

    Partly cloudy. Low temperature around 18F. Dew point will be around 9F with an average humidity of 62%. Winds will be 5 mph from the W.

  • Day

    32°F

    Sunny. High temperature around 32F. Dew point will be around 11F with an average humidity of 48%. Winds will be 10 mph from the NW.

    Night

    17°F

    Clear. Low temperature around 17F. Dew point will be around 8F with an average humidity of 59%. Winds will be 5 mph from the W.