National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

ONIDAMUNC (K98D)

Lat: 44.7°NLon: 100.1°WElev: 1874ft.

Mostly Cloudy

34°F

1°C

Humidity 51%
Wind Speed NE 14 G 20 mph
Barometer 30.46 in
Dewpoint 18°F (-8°C)
Visibility 10.00 mi
Wind Chill25°F (-4°C)
Last update 6 Apr 3:15 pm CDT
Extended Forecast for

Tolstoy SD

  • This Afternoon

    This Afternoon: Mostly cloudy, with a high near 31. East northeast wind around 10 mph.

    High: 31 °F

    Mostly Cloudy

  • Tonight

    Tonight: Mostly cloudy, with a low around 16. East wind 11 to 14 mph.

    Low: 16 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 41. Windy, with a south southeast wind 16 to 21 mph increasing to 25 to 30 mph in the afternoon. Winds could gust as high as 39 mph.

    High: 41 °F

    Partly Sunny
    and Windy

  • Tuesday Night

    Tuesday Night: A chance of rain after 1am. Mostly cloudy, with a low around 31. Breezy, with a south southeast wind 18 to 23 mph, with gusts as high as 32 mph. Chance of precipitation is 30%.

    Low: 31 °F

    Breezy.
    Partly Cloudy
    then Chance
    Rain

  • Wednesday

    Wednesday: Mostly sunny, with a high near 50. Windy, with a west wind 18 to 23 mph increasing to 26 to 31 mph in the afternoon. Winds could gust as high as 41 mph.

    High: 50 °F

    Mostly Sunny
    and Windy

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 22. Blustery, with a west northwest wind 21 to 26 mph decreasing to 13 to 18 mph after midnight. Winds could gust as high as 34 mph.

    Low: 22 °F

    Partly Cloudy
    and Blustery
    then Mostly
    Clear

  • Thursday

    Thursday: A chance of snow after 1pm. Partly sunny, with a high near 44. North northwest wind around 10 mph. Chance of precipitation is 30%.

    High: 44 °F

    Mostly Sunny
    then Chance
    Snow

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 24. North wind 6 to 9 mph becoming west after midnight.

    Low: 24 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 55. West southwest wind 7 to 11 mph becoming south southeast in the afternoon.

    High: 55 °F

    Sunny

Detailed Forecast

This Afternoon
Mostly cloudy, with a high near 31. East northeast wind around 10 mph.
Tonight
Mostly cloudy, with a low around 16. East wind 11 to 14 mph.
Tuesday
Partly sunny, with a high near 41. Windy, with a south southeast wind 16 to 21 mph increasing to 25 to 30 mph in the afternoon. Winds could gust as high as 39 mph.
Tuesday Night
A chance of rain after 1am. Mostly cloudy, with a low around 31. Breezy, with a south southeast wind 18 to 23 mph, with gusts as high as 32 mph. Chance of precipitation is 30%.
Wednesday
Mostly sunny, with a high near 50. Windy, with a west wind 18 to 23 mph increasing to 26 to 31 mph in the afternoon. Winds could gust as high as 41 mph.
Wednesday Night
Mostly clear, with a low around 22. Blustery, with a west northwest wind 21 to 26 mph decreasing to 13 to 18 mph after midnight. Winds could gust as high as 34 mph.
Thursday
A chance of snow after 1pm. Partly sunny, with a high near 44. North northwest wind around 10 mph. Chance of precipitation is 30%.
Thursday Night
Partly cloudy, with a low around 24. North wind 6 to 9 mph becoming west after midnight.
Friday
Sunny, with a high near 55. West southwest wind 7 to 11 mph becoming south southeast in the afternoon.
Friday Night
Mostly cloudy, with a low around 37.
Saturday
A chance of rain. Mostly cloudy, with a high near 62. Breezy. Chance of precipitation is 30%.
Saturday Night
A chance of rain. Mostly cloudy, with a low around 48. Chance of precipitation is 30%.
Sunday
A chance of rain. Partly sunny, with a high near 73. Chance of precipitation is 40%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Tolstoy SD
 45.21°N 99.61°W (Elev. 1900 ft)
Last Update:
2:36 pm CDT Apr 6, 2026
Forecast Valid:
3pm CDT Apr 6, 2026-6pm CDT Apr 12, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation