10-Day Weather Forecast - Castlewood, SD

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  • 20|16°F
    Mostly Sunny
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    Today

    20°F

    Mostly sunny. Much colder with highs in the lower 20s. North winds 10 to 15 mph.

    Tonight

    16°F

    Partly cloudy in the evening then becoming mostly cloudy. Lows around 14. Temperature rising to around 20 after midnight. Southwest winds 5 to 10 mph with gusts up to 20 mph.

    Hourly details
  • Day

    36°F

    Partly sunny. A slight chance of snow in the afternoon. Blustery and not as cold with highs in the upper 30s. Southwest winds 10 to 15 mph with gusts up to 25 mph becoming northwest 15 to 25 mph with gusts up to 40 mph in the afternoon. Chance of snow 20 percent.

    Night

    25°F

    Mostly cloudy. A chance of snow in the evening then snow likely after midnight. Patchy blowing snow after midnight. Little or no snow accumulation. Windy with lows around 15. Northwest winds 25 to 30 mph with gusts up to 45 mph. Chance of snow 70 percent.

    Hourly details
  • Day

    24°F

    Mostly cloudy. Snow likely mainly in the morning. Areas of blowing snow in the morning then patchy blowing snow in the afternoon. Light snow accumulation possible. Very windy and colder with highs in the mid 20s. Temperature falling to around 13 in the afternoon. Northwest winds 25 to 35 mph with gusts up to 50 mph. Chance of snow 70 percent.

    Night

    5°F

    Patchy blowing snow in the evening. Mostly cloudy with a chance of flurries. Blustery and much colder with lows around zero. Wind chill values as low as 20 below.

    Hourly details
  • Weekend Weather

  • Day

    4°F

    Partly sunny. Much colder with highs 5 to 10 above. Wind chill values as low as 20 below.

    Night

    -1°F

    Partly cloudy in the evening then mostly cloudy with a chance of flurries after midnight. Cold with lows 5 below to zero. Temperature rising to around zero after midnight.

    Hourly details
  • Day

    17°F

    Partly sunny. A chance of flurries in the morning then a slight chance of snow in the afternoon. Patchy blowing snow. Brisk and not as cold with highs around 20. Chance of snow 20 percent.

    Night

    1°F

    Mostly cloudy. A chance of flurries in the evening. Patchy blowing snow in the evening. Lows around zero.

    Hourly details
  • Day

    8°F

    Mostly cloudy. Highs 15 to 20. Lows around zero.

    Night

    5°F

    Mostly cloudy. Highs 15 to 20. Lows around zero.

    Hourly details
  • Day

    18°F

    Mostly cloudy. Highs 15 to 20. Lows around zero.

    Night

    10°F

    Partly cloudy. Low temperature around 10F. Dew point will be around 8F with an average humidity of 81%. Winds will be 5 mph from the NW.

  • Day

    20°F

    Sunny. High temperature around 20F. Dew point will be around 9F with an average humidity of 77%. Winds will be 6 mph from the W.

    Night

    13°F

    Mostly clear. Low temperature around 13F. Dew point will be around 9F with an average humidity of 79%. Winds will be 3 mph from the W.

  • Day

    20°F

    Mostly cloudy. High temperature around 20F. Dew point will be around 11F with an average humidity of 76%. Winds will be 3 mph from the W.

    Night

    8°F

    Cloudy. Low temperature around 8F. Dew point will be around 9F with an average humidity of 82%. Winds will be 5 mph from the N.

  • Day

    11°F

    Cloudy. High temperature around 11F. Dew point will be around 4F with an average humidity of 78%. Winds will be 6 mph from the N.

    Night

    4°F

    Cloudy with a slight chance of snow. Chance of precipitation 25%. Low temperature around 4F. Dew point will be around 2F with an average humidity of 82%. Winds will be 4 mph from the N.