National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
7-Day Forecast 45.19°N 99.45°W (Text-Only)
NWS Forecast for: Onaka SD
Issued by: National Weather Service Aberdeen, SD
Last Update: 10:56 am CST Jan 17, 2026		Print

  • Today

    Today: Mostly sunny and cold, with a high near 10. Wind chill values as low as -26. Blustery, with a northwest wind 18 to 23 mph decreasing to 11 to 16 mph in the afternoon. Winds could gust as high as 31 mph.

    High: 10 °F

    Cold and
    Blustery



  • Tonight

    Tonight: A chance of flurries with a slight chance of snow showers before 2am, then a chance of flurries after 5am. Mostly cloudy, with a temperature rising to around 20 by 5am. Blustery, with a south southwest wind 10 to 15 mph increasing to 21 to 26 mph after midnight. Winds could gust as high as 43 mph. Chance of precipitation is 20%.

    Low: 4 °F⇑

    Slight Chance
    Snow Showers
    then Chance
    Flurries and
    Blustery

  • Sunday

    Sunday: A chance of snow showers, mainly before 8am. Mostly cloudy, with a temperature falling to around 7 by 5pm. Windy, with a north northwest wind 28 to 34 mph, with gusts as high as 47 mph. Chance of precipitation is 30%.

    High: 22 °F⇓

    Chance Snow
    Showers and
    Windy


  • Sunday
    Night

    Sunday Night: Partly cloudy, with a low around -4. Wind chill values as low as -24. Blustery, with a north northwest wind 15 to 25 mph, with gusts as high as 37 mph.

    Low: -4 °F

    Mostly Cloudy
    and Blustery
    then Partly
    Cloudy

  • M.L.King
    Day

    M.L.King Day: Mostly sunny, with a high near 13. Blustery, with a west northwest wind 13 to 21 mph.

    High: 13 °F

    Mostly Sunny
    and Blustery



  • Monday
    Night

    Monday Night: Mostly cloudy, with a low around 1. West northwest wind around 10 mph becoming southwest after midnight.

    Low: 1 °F

    Mostly Cloudy




  • Tuesday

    Tuesday: A slight chance of snow after noon. Mostly cloudy, with a high near 29. South southwest wind 9 to 16 mph becoming northwest in the afternoon. Winds could gust as high as 24 mph. Chance of precipitation is 20%.

    High: 29 °F

    Mostly Cloudy
    then Slight
    Chance Snow


  • Tuesday
    Night

    Tuesday Night: Mostly cloudy, with a low around 11. Northwest wind 15 to 17 mph.

    Low: 11 °F

    Mostly Cloudy




  • Wednesday

    Wednesday: Partly sunny, with a high near 21. Blustery, with a northwest wind 16 to 22 mph, with gusts as high as 30 mph.

    High: 21 °F

    Partly Sunny
    and Blustery





    • Today: Mostly sunny and cold, with a high near 10. Wind chill values as low as -26. Blustery, with a northwest wind 18 to 23 mph decreasing to 11 to 16 mph in the afternoon. Winds could gust as high as 31 mph.

    Tonight: A chance of flurries with a slight chance of snow showers before 2am, then a chance of flurries after 5am. Mostly cloudy, with a temperature rising to around 20 by 5am. Blustery, with a south southwest wind 10 to 15 mph increasing to 21 to 26 mph after midnight. Winds could gust as high as 43 mph. Chance of precipitation is 20%.

    Sunday: A chance of snow showers, mainly before 8am. Mostly cloudy, with a temperature falling to around 7 by 5pm. Windy, with a north northwest wind 28 to 34 mph, with gusts as high as 47 mph. Chance of precipitation is 30%.

    Sunday Night: Partly cloudy, with a low around -4. Wind chill values as low as -24. Blustery, with a north northwest wind 15 to 25 mph, with gusts as high as 37 mph.

    M.L.King Day: Mostly sunny, with a high near 13. Blustery, with a west northwest wind 13 to 21 mph.

    Monday Night: Mostly cloudy, with a low around 1. West northwest wind around 10 mph becoming southwest after midnight.

    Tuesday: A slight chance of snow after noon. Mostly cloudy, with a high near 29. South southwest wind 9 to 16 mph becoming northwest in the afternoon. Winds could gust as high as 24 mph. Chance of precipitation is 20%.

    Tuesday Night: Mostly cloudy, with a low around 11. Northwest wind 15 to 17 mph.

    Wednesday: Partly sunny, with a high near 21. Blustery, with a northwest wind 16 to 22 mph, with gusts as high as 30 mph.

    Wednesday Night: Mostly cloudy, with a low around 3.

    Thursday: Partly sunny, with a high near 20.

    Thursday Night: Mostly cloudy, with a low around -1.

    Friday: A slight chance of snow. Partly sunny and cold, with a high near 9. Chance of precipitation is 20%.


    Onaka SD
     45.19°N 99.45°W (Elev. 1850 ft)

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