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

59°F

15°C

Humidity 94%
Wind Speed E 7 mph
Barometer 30.19 in
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 16 Sep 8:55 pm CDT
Extended Forecast for

Lebanon SD

  • Tonight

    Tonight: Partly cloudy, with a low around 51. East southeast wind 5 to 9 mph becoming light and variable after midnight.

    Low: 51 °F

    Partly Cloudy

  • Thursday

    Thursday: Patchy fog before 9am. Otherwise, increasing clouds, with a high near 73. East wind 5 to 15 mph, with gusts as high as 24 mph.

    High: 73 °F

    Patchy Fog
    then Partly
    Sunny

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Low around 57. Breezy, with an east wind 14 to 20 mph, with gusts as high as 29 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.

    Low: 57 °F

    Chance
    Showers then
    Heavy Rain
    and Breezy

  • Friday

    Friday: Showers, mainly before 1pm. The rain could be heavy at times. High near 68. Breezy, with an east northeast wind 16 to 22 mph, with gusts as high as 31 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    High: 68 °F

    Heavy Rain
    and Breezy

  • Friday Night

    Friday Night: Cloudy, with a low around 53. North northeast wind 9 to 15 mph, with gusts as high as 24 mph.

    Low: 53 °F

    Cloudy

  • Saturday

    Saturday: Cloudy, with a high near 67. North northeast wind 10 to 13 mph, with gusts as high as 21 mph.

    High: 67 °F

    Cloudy

  • Saturday Night

    Saturday Night: A slight chance of showers after 1am. Mostly cloudy, with a low around 53. East northeast wind 8 to 13 mph. Chance of precipitation is 20%.

    Low: 53 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Sunday

    Sunday: A chance of showers. Cloudy, with a high near 64. East wind 9 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 40%.

    High: 64 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: Showers likely, mainly before 1am. Mostly cloudy, with a low around 52. East northeast wind 8 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.

    Low: 52 °F

    Showers
    Likely

Detailed Forecast

Tonight
Partly cloudy, with a low around 51. East southeast wind 5 to 9 mph becoming light and variable after midnight.
Thursday
Patchy fog before 9am. Otherwise, increasing clouds, with a high near 73. East wind 5 to 15 mph, with gusts as high as 24 mph.
Thursday Night
Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Low around 57. Breezy, with an east wind 14 to 20 mph, with gusts as high as 29 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.
Friday
Showers, mainly before 1pm. The rain could be heavy at times. High near 68. Breezy, with an east northeast wind 16 to 22 mph, with gusts as high as 31 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Friday Night
Cloudy, with a low around 53. North northeast wind 9 to 15 mph, with gusts as high as 24 mph.
Saturday
Cloudy, with a high near 67. North northeast wind 10 to 13 mph, with gusts as high as 21 mph.
Saturday Night
A slight chance of showers after 1am. Mostly cloudy, with a low around 53. East northeast wind 8 to 13 mph. Chance of precipitation is 20%.
Sunday
A chance of showers. Cloudy, with a high near 64. East wind 9 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 40%.
Sunday Night
Showers likely, mainly before 1am. Mostly cloudy, with a low around 52. East northeast wind 8 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.
Monday
A chance of showers, mainly before 1pm. Mostly cloudy, with a high near 65. Chance of precipitation is 30%.
Monday Night
A chance of showers. Mostly cloudy, with a low around 51. Chance of precipitation is 30%.
Tuesday
Partly sunny, with a high near 70.
Tuesday Night
A slight chance of showers. Partly cloudy, with a low around 52. Chance of precipitation is 20%.
Wednesday
Mostly sunny, with a high near 74.
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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:
8:41 pm CDT Sep 16, 2026
Forecast Valid:
9pm CDT Sep 16, 2026-6pm CDT Sep 23, 2026
 
Forecast Discussion
 
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Additional Resources

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