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

Above Average Temperatures in the West; Winter Weather Returns to the Upper Midwest and Great Lakes

Well above average temperatures will continue across the West this week, potentially breaking some daily high temperature records. A storm system dropping south out of Canada will bring a wintry mix to the Upper Midwest and Great Lakes Tuesday, pushing into the Central Appalachians and interior Northeast on Wednesday. Read More >

Current conditions at

ONIDAMUNC (K98D)

Lat: 44.7°NLon: 100.1°WElev: 1874ft.

Fair

43°F

6°C

Humidity 61%
Wind Speed W 14 mph
Barometer 29.86 in
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Wind Chill36°F (2°C)
Last update 12 Jan 8:55 pm CST
Extended Forecast for

Lebanon SD

  • Tonight

    Tonight: Mostly cloudy, with a low around 38. Breezy, with a west wind 16 to 20 mph, with gusts as high as 31 mph.

    Low: 38 °F

    Mostly Cloudy
    then Mostly
    Cloudy and
    Breezy

  • Tuesday

    Tuesday: A chance of rain between 9am and 2pm. Mostly cloudy, with a high near 49. Breezy, with a west wind 20 to 26 mph, with gusts as high as 40 mph. Chance of precipitation is 40%.

    High: 49 °F

    Chance Rain
    and Breezy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 24. Blustery, with a north wind 16 to 22 mph, with gusts as high as 32 mph.

    Low: 24 °F

    Mostly Cloudy
    and Blustery

  • Wednesday

    Wednesday: Partly sunny, with a high near 32. North wind 6 to 15 mph becoming south southwest in the afternoon. Winds could gust as high as 24 mph.

    High: 32 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 24. South wind 6 to 13 mph, with gusts as high as 21 mph.

    Low: 24 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 43. Windy, with a southwest wind 14 to 19 mph becoming northwest 27 to 32 mph in the morning. Winds could gust as high as 46 mph.

    High: 43 °F

    Mostly Sunny
    and Windy

  • Thursday Night

    Thursday Night: A chance of snow, mainly after midnight. Mostly cloudy, with a low around 18. Windy, with a northwest wind 26 to 32 mph, with gusts as high as 46 mph. Chance of precipitation is 40%.

    Low: 18 °F

    Chance Snow
    and Windy

  • Friday

    Friday: A slight chance of snow before noon. Mostly cloudy, with a high near 25. Windy, with a north northwest wind 28 to 36 mph, with gusts as high as 49 mph. Chance of precipitation is 20%.

    High: 25 °F

    Windy. Slight
    Chance Snow
    then Partly
    Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 8. Blustery, with a north northwest wind 20 to 24 mph, with gusts as high as 36 mph.

    Low: 8 °F

    Mostly Cloudy
    and Blustery

Detailed Forecast

Tonight
Mostly cloudy, with a low around 38. Breezy, with a west wind 16 to 20 mph, with gusts as high as 31 mph.
Tuesday
A chance of rain between 9am and 2pm. Mostly cloudy, with a high near 49. Breezy, with a west wind 20 to 26 mph, with gusts as high as 40 mph. Chance of precipitation is 40%.
Tuesday Night
Mostly cloudy, with a low around 24. Blustery, with a north wind 16 to 22 mph, with gusts as high as 32 mph.
Wednesday
Partly sunny, with a high near 32. North wind 6 to 15 mph becoming south southwest in the afternoon. Winds could gust as high as 24 mph.
Wednesday Night
Mostly cloudy, with a low around 24. South wind 6 to 13 mph, with gusts as high as 21 mph.
Thursday
Mostly sunny, with a high near 43. Windy, with a southwest wind 14 to 19 mph becoming northwest 27 to 32 mph in the morning. Winds could gust as high as 46 mph.
Thursday Night
A chance of snow, mainly after midnight. Mostly cloudy, with a low around 18. Windy, with a northwest wind 26 to 32 mph, with gusts as high as 46 mph. Chance of precipitation is 40%.
Friday
A slight chance of snow before noon. Mostly cloudy, with a high near 25. Windy, with a north northwest wind 28 to 36 mph, with gusts as high as 49 mph. Chance of precipitation is 20%.
Friday Night
Mostly cloudy, with a low around 8. Blustery, with a north northwest wind 20 to 24 mph, with gusts as high as 36 mph.
Saturday
Mostly sunny, with a high near 20. Blustery.
Saturday Night
Partly cloudy, with a low around 5.
Sunday
Mostly sunny, with a high near 30. Blustery.
Sunday Night
Mostly cloudy, with a low around 11.
M.L.King Day
Partly sunny, with a high near 30.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Lebanon SD
 45.07°N 99.78°W (Elev. 1955 ft)
Last Update:
8:51 pm CST Jan 12, 2026
Forecast Valid:
9pm CST Jan 12, 2026-6pm CST Jan 19, 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