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

Seneca SD

  • Overnight

    Overnight: A slight chance of snow before 5am, then a chance of flurries after 5am. Mostly cloudy, with a steady temperature around 24. Northwest wind around 14 mph. Chance of precipitation is 20%.

    Low: 24 °F

    Slight Chance
    Snow

  • Saturday

    Saturday: Mostly cloudy, then gradually becoming sunny, with a high near 26. Blustery, with a north northwest wind 15 to 22 mph, with gusts as high as 30 mph.

    High: 26 °F

    Decreasing
    Clouds and
    Blustery

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 15. North northwest wind 6 to 13 mph becoming south southwest after midnight.

    Low: 15 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 44. Breezy, with a west wind 13 to 20 mph, with gusts as high as 28 mph.

    High: 44 °F

    Mostly Sunny
    then Sunny
    and Breezy

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 29. West northwest wind around 15 mph, with gusts as high as 23 mph.

    Low: 29 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 50. West southwest wind 14 to 18 mph, with gusts as high as 29 mph.

    High: 50 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 40. Breezy, with a west northwest wind 17 to 23 mph, with gusts as high as 34 mph.

    Low: 40 °F

    Mostly Cloudy
    and Breezy

  • Tuesday

    Tuesday: Partly sunny, with a high near 50. Windy, with a west northwest wind 23 to 31 mph, with gusts as high as 43 mph.

    High: 50 °F

    Partly Sunny
    and Windy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 24. Blustery, with a north northwest wind 18 to 22 mph, with gusts as high as 31 mph.

    Low: 24 °F

    Mostly Cloudy
    and Blustery
    then Mostly
    Cloudy

Detailed Forecast

Overnight
A slight chance of snow before 5am, then a chance of flurries after 5am. Mostly cloudy, with a steady temperature around 24. Northwest wind around 14 mph. Chance of precipitation is 20%.
Saturday
Mostly cloudy, then gradually becoming sunny, with a high near 26. Blustery, with a north northwest wind 15 to 22 mph, with gusts as high as 30 mph.
Saturday Night
Partly cloudy, with a low around 15. North northwest wind 6 to 13 mph becoming south southwest after midnight.
Sunday
Mostly sunny, with a high near 44. Breezy, with a west wind 13 to 20 mph, with gusts as high as 28 mph.
Sunday Night
Partly cloudy, with a low around 29. West northwest wind around 15 mph, with gusts as high as 23 mph.
Monday
Partly sunny, with a high near 50. West southwest wind 14 to 18 mph, with gusts as high as 29 mph.
Monday Night
Mostly cloudy, with a low around 40. Breezy, with a west northwest wind 17 to 23 mph, with gusts as high as 34 mph.
Tuesday
Partly sunny, with a high near 50. Windy, with a west northwest wind 23 to 31 mph, with gusts as high as 43 mph.
Tuesday Night
Mostly cloudy, with a low around 24. Blustery, with a north northwest wind 18 to 22 mph, with gusts as high as 31 mph.
Wednesday
Partly sunny, with a high near 35.
Wednesday Night
Mostly cloudy, with a low around 25.
Thursday
A slight chance of snow. Mostly 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 22. Blustery. Chance of precipitation is 20%.
Friday
A chance of snow. Mostly cloudy, with a high near 30. Windy. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Seneca SD
 45.06°N 99.51°W (Elev. 1893 ft)
Last Update:
3:36 am CST Jan 10, 2026
Forecast Valid:
4am CST Jan 10, 2026-6pm CST Jan 16, 2026
 
Forecast Discussion
 
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Additional Resources

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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