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.

Fair

39°F

4°C

Humidity 87%
Wind Speed NE 15 mph
Barometer 29.71 in
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Wind Chill31°F (-1°C)
Last update 30 Mar 5:35 am CDT
Extended Forecast for

Tolstoy SD

  • Today

    Today: Mostly sunny, with a high near 65. Breezy, with an east wind 17 to 22 mph decreasing to 10 to 15 mph in the afternoon.

    High: 65 °F

    Mostly Sunny
    and Breezy
    then Mostly
    Sunny

  • Tonight

    Tonight: A chance of rain between 10pm and 4am. Increasing clouds, with a low around 31. Blustery, with an east wind 14 to 19 mph becoming north 20 to 25 mph after midnight. Winds could gust as high as 36 mph. Chance of precipitation is 30%.

    Low: 31 °F

    Chance Rain
    and Blustery

  • Tuesday

    Tuesday: Mostly sunny, with a high near 44. Breezy, with a north northwest wind 21 to 28 mph, with gusts as high as 37 mph.

    High: 44 °F

    Mostly Sunny
    and Breezy

  • Tuesday Night

    Tuesday Night: A slight chance of snow after 1am. Mostly cloudy, with a low around 22. North wind 11 to 15 mph becoming east after midnight. Chance of precipitation is 20%.

    Low: 22 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Wednesday

    Wednesday: Snow likely. Cloudy, with a high near 34. Breezy, with an east wind 16 to 21 mph, with gusts as high as 29 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.

    High: 34 °F

    Snow Likely
    and Breezy

  • Wednesday Night

    Wednesday Night: Snow likely. Cloudy, with a low around 25. Breezy, with an east wind 16 to 20 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.

    Low: 25 °F

    Snow Likely
    and Breezy

  • Thursday

    Thursday: Snow likely, mainly before 1pm. Mostly cloudy, with a high near 38. Breezy, with an east wind 16 to 21 mph, with gusts as high as 29 mph. Chance of precipitation is 60%.

    High: 38 °F

    Snow Likely
    and Breezy

  • Thursday Night

    Thursday Night: A chance of snow, mainly after 1am. Cloudy, with a low around 25. Breezy, with an east wind around 21 mph. Chance of precipitation is 50%.

    Low: 25 °F

    Breezy.
    Slight Chance
    Snow then
    Chance Snow

  • Friday

    Friday: Snow. High near 35. Breezy, with an east northeast wind 20 to 22 mph, with gusts as high as 30 mph. Chance of precipitation is 80%.

    High: 35 °F

    Snow and
    Breezy

Detailed Forecast

Today
Mostly sunny, with a high near 65. Breezy, with an east wind 17 to 22 mph decreasing to 10 to 15 mph in the afternoon.
Tonight
A chance of rain between 10pm and 4am. Increasing clouds, with a low around 31. Blustery, with an east wind 14 to 19 mph becoming north 20 to 25 mph after midnight. Winds could gust as high as 36 mph. Chance of precipitation is 30%.
Tuesday
Mostly sunny, with a high near 44. Breezy, with a north northwest wind 21 to 28 mph, with gusts as high as 37 mph.
Tuesday Night
A slight chance of snow after 1am. Mostly cloudy, with a low around 22. North wind 11 to 15 mph becoming east after midnight. Chance of precipitation is 20%.
Wednesday
Snow likely. Cloudy, with a high near 34. Breezy, with an east wind 16 to 21 mph, with gusts as high as 29 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.
Wednesday Night
Snow likely. Cloudy, with a low around 25. Breezy, with an east wind 16 to 20 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.
Thursday
Snow likely, mainly before 1pm. Mostly cloudy, with a high near 38. Breezy, with an east wind 16 to 21 mph, with gusts as high as 29 mph. Chance of precipitation is 60%.
Thursday Night
A chance of snow, mainly after 1am. Cloudy, with a low around 25. Breezy, with an east wind around 21 mph. Chance of precipitation is 50%.
Friday
Snow. High near 35. Breezy, with an east northeast wind 20 to 22 mph, with gusts as high as 30 mph. Chance of precipitation is 80%.
Friday Night
Snow likely, mainly before 1am. Mostly cloudy, with a low around 24. Blustery. Chance of precipitation is 60%.
Saturday
A chance of snow. Mostly cloudy, with a high near 38. Breezy. Chance of precipitation is 30%.
Saturday Night
Partly cloudy, with a low around 19. Blustery.
Sunday
Mostly sunny, with a high near 42. Breezy.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Tolstoy SD
 45.23°N 99.61°W (Elev. 1900 ft)
Last Update:
5:36 am CDT Mar 30, 2026
Forecast Valid:
5am CDT Mar 30, 2026-6pm CDT Apr 5, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation