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

Harrold SD

  • Overnight

    Overnight: A chance of flurries with a slight chance of snow before 3am, then a chance of flurries between 3am and 4am, then a slight chance of snow after 4am. Cloudy, with a low around 21. West wind around 11 mph. Chance of precipitation is 20%.

    Low: 21 °F

    Slight Chance
    Snow

  • Saturday

    Saturday: A chance of snow, mainly before noon. Mostly cloudy, with a high near 28. North northwest wind 13 to 18 mph, with gusts as high as 26 mph. Chance of precipitation is 30%.

    High: 28 °F

    Chance Snow

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 15. North northwest wind 6 to 10 mph becoming south after midnight.

    Low: 15 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 45. South wind 10 to 16 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 28. West wind around 14 mph.

    Low: 28 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 50. West wind 13 to 18 mph, with gusts as high as 26 mph.

    High: 50 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 39. Breezy, with a west northwest wind 15 to 24 mph, with gusts as high as 34 mph.

    Low: 39 °F

    Mostly Cloudy
    and Breezy

  • Tuesday

    Tuesday: Partly sunny, with a high near 50. Breezy, with a west northwest wind 23 to 28 mph, with gusts as high as 39 mph.

    High: 50 °F

    Partly Sunny
    and Breezy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 27. Blustery, with a north northwest wind 18 to 21 mph, with gusts as high as 31 mph.

    Low: 27 °F

    Mostly Cloudy
    and Blustery

Detailed Forecast

Overnight
A chance of flurries with a slight chance of snow before 3am, then a chance of flurries between 3am and 4am, then a slight chance of snow after 4am. Cloudy, with a low around 21. West wind around 11 mph. Chance of precipitation is 20%.
Saturday
A chance of snow, mainly before noon. Mostly cloudy, with a high near 28. North northwest wind 13 to 18 mph, with gusts as high as 26 mph. Chance of precipitation is 30%.
Saturday Night
Partly cloudy, with a low around 15. North northwest wind 6 to 10 mph becoming south after midnight.
Sunday
Mostly sunny, with a high near 45. South wind 10 to 16 mph becoming west in the afternoon. Winds could gust as high as 24 mph.
Sunday Night
Partly cloudy, with a low around 28. West wind around 14 mph.
Monday
Mostly sunny, with a high near 50. West wind 13 to 18 mph, with gusts as high as 26 mph.
Monday Night
Mostly cloudy, with a low around 39. Breezy, with a west northwest wind 15 to 24 mph, with gusts as high as 34 mph.
Tuesday
Partly sunny, with a high near 50. Breezy, with a west northwest wind 23 to 28 mph, with gusts as high as 39 mph.
Tuesday Night
Mostly cloudy, with a low around 27. Blustery, with a north northwest wind 18 to 21 mph, with gusts as high as 31 mph.
Wednesday
Mostly sunny, with a high near 36.
Wednesday Night
Partly cloudy, with a low around 25.
Thursday
A slight chance of rain. Partly sunny, with a high near 44. Breezy. Chance of precipitation is 20%.
Thursday Night
A slight chance of snow. Mostly cloudy, with a low around 24. Blustery. Chance of precipitation is 20%.
Friday
A chance of snow. Mostly cloudy, with a high near 31. Windy. Chance of precipitation is 40%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Harrold SD
 44.52°N 99.75°W (Elev. 1804 ft)
Last Update:
12:36 am CST Jan 10, 2026
Forecast Valid:
1am CST Jan 10, 2026-6pm CST Jan 16, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation