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

Storm Systems to Impact the Central and Eastern U.S. Through the Weekend

Two storm systems will track through the central and eastern U.S. today through this weekend with areas of gusty winds, rain and heavy snow. Severe thunderstorms and heavy to excessive rainfall is forecast today from the Lower Mississippi River Valley to the Tennessee Valley. Damaging winds, a few tornadoes, and areas of flooding are possible. Read More >

Current conditions at

ONIDAMUNC (K98D)

Lat: 44.7°NLon: 100.1°WElev: 1874ft.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

4 Miles NW Agar SD

  • This Afternoon

    This Afternoon: Sunny, with a high near 37. Breezy, with a northwest wind 15 to 20 mph.

    High: 37 °F

    Sunny and
    Breezy

  • Tonight

    Tonight: A chance of flurries after 5am. Increasing clouds, with a low around 20. West northwest wind 10 to 13 mph.

    Low: 20 °F

    Chance
    Flurries

  • Saturday

    Saturday: A chance of snow before 1pm, then a chance of flurries between 1pm and 2pm. Mostly cloudy, with a high near 27. North northwest wind 11 to 17 mph. Chance of precipitation is 30%.

    High: 27 °F

    Chance Snow

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 15. North northwest wind 6 to 9 mph becoming south in the evening.

    Low: 15 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 45. South wind 10 to 14 mph becoming west in the afternoon. Winds could gust as high as 24 mph.

    High: 45 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 27. West wind 10 to 14 mph.

    Low: 27 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 50. West wind 10 to 16 mph, with gusts as high as 25 mph.

    High: 50 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 39. Breezy, with a west wind 14 to 21 mph, with gusts as high as 32 mph.

    Low: 39 °F

    Mostly Cloudy
    then Partly
    Cloudy and
    Breezy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 50. Breezy, with a west northwest wind 21 to 26 mph, with gusts as high as 38 mph.

    High: 50 °F

    Mostly Sunny
    and Breezy

Detailed Forecast

This Afternoon
Sunny, with a high near 37. Breezy, with a northwest wind 15 to 20 mph.
Tonight
A chance of flurries after 5am. Increasing clouds, with a low around 20. West northwest wind 10 to 13 mph.
Saturday
A chance of snow before 1pm, then a chance of flurries between 1pm and 2pm. Mostly cloudy, with a high near 27. North northwest wind 11 to 17 mph. Chance of precipitation is 30%.
Saturday Night
Mostly cloudy, with a low around 15. North northwest wind 6 to 9 mph becoming south in the evening.
Sunday
Mostly sunny, with a high near 45. South wind 10 to 14 mph becoming west in the afternoon. Winds could gust as high as 24 mph.
Sunday Night
Partly cloudy, with a low around 27. West wind 10 to 14 mph.
Monday
Partly sunny, with a high near 50. West wind 10 to 16 mph, with gusts as high as 25 mph.
Monday Night
Mostly cloudy, with a low around 39. Breezy, with a west wind 14 to 21 mph, with gusts as high as 32 mph.
Tuesday
Mostly sunny, with a high near 50. Breezy, with a west northwest wind 21 to 26 mph, with gusts as high as 38 mph.
Tuesday Night
Mostly cloudy, with a low around 25. Blustery.
Wednesday
Mostly sunny, with a high near 36.
Wednesday Night
Mostly cloudy, with a low around 23.
Thursday
A slight chance of rain. Partly sunny, with a high near 42. Breezy. Chance of precipitation is 20%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NW Agar SD
 44.87°N 100.13°W (Elev. 1900 ft)
Last Update:
3:16 pm CST Jan 9, 2026
Forecast Valid:
3pm CST Jan 9, 2026-6pm CST Jan 15, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation