10-Day Weather Forecast - Sinai, SD

As of

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  • |69°F
    Mostly Clear

    Tonight

    69°F

    Mostly clear. Lows in the upper 60s. South winds 5 to 10 mph with gusts up to 20 mph, becoming east after midnight.

    Hourly details
  • 92|71°F
    Sunny

    Day

    92°F

    Sunny with highs in the lower 90s. Northeast winds 5 to 10 mph.

    Night

    71°F

    Mostly clear. A slight chance of showers and thunderstorms after midnight. Humid with lows around 70. East winds 5 to 10 mph. Chance of rain 20 percent.

    Hourly details
  • 89|72°F
    40% Chance of Storms

    Day

    89°F

    Partly sunny with a chance of showers and thunderstorms in the morning, then sunny in the afternoon. Humid with highs in the lower 90s. Southeast winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 40 percent.

    Night

    72°F

    Partly cloudy. A slight chance of showers and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. Humid with lows around 70. Southeast winds 5 to 10 mph. Chance of rain 40 percent.

    Hourly details
  • 83|70°F
    40% Chance of Storms

    Day

    83°F

    Mostly sunny. A chance of showers and thunderstorms, mainly in the morning. Highs in the upper 80s. Chance of rain 40 percent.

    Night

    70°F

    Mostly cloudy with a chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. Lows in the upper 60s. Chance of rain 60 percent.

    Hourly details
  • 83|72°F
    50% Chance Rain Showers

    Day

    83°F

    Mostly cloudy in the morning, then becoming partly sunny. A chance of showers. Highs in the mid 80s. Chance of rain 50 percent.

    Night

    72°F

    A chance of thunderstorms in the evening. Mostly cloudy with a chance of showers. Lows in the upper 60s. Chance of rain 50 percent.

    Hourly details
  • 84|63°F
    Mostly Sunny

    Day

    84°F

    Mostly cloudy in the morning, then becoming mostly sunny. Highs in the mid 80s.

    Night

    63°F

    Partly cloudy in the evening, then becoming mostly clear. Lows in the lower 60s.

    Hourly details
  • 79|62°F
    Mostly Sunny

    Day

    79°F

    Mostly sunny. Highs in the lower 80s.

    Night

    62°F

    Partly cloudy. Lows in the upper 50s.

    Hourly details
  • 77|61°F
    Mostly Sunny

    Day

    77°F

    Mostly sunny. Highs in the upper 70s.

    Night

    61°F

    Partly cloudy. Low temperature around 61F. Dew point will be around 60F with an average humidity of 81%. Winds will be 4 mph from the SE.

  • 74|61°F
    Mostly Sunny

    Day

    74°F

    Mostly sunny. High temperature around 74F. Dew point will be around 61F with an average humidity of 76%. Winds will be 7 mph from the SE.

    Night

    61°F

    Clear with a slight chance of rain. Chance of precipitation 25%. Low temperature around 61F. Dew point will be around 61F with an average humidity of 83%. Winds will be 5 mph from the SE.

  • 74|60°F
    Sunny

    Day

    74°F

    Sunny. High temperature around 74F. Dew point will be around 60F with an average humidity of 72%. Winds will be 5 mph from the S.

    Night

    60°F

    Mostly clear. Low temperature around 60F. Dew point will be around 61F with an average humidity of 83%. Winds will be 4 mph from the SE.