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

54°F

12°C

Humidity 58%
Wind Speed E 9 mph
Barometer 30.10 in
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Wind Chill51°F (11°C)
Last update 8 Oct 8:55 am CDT
Extended Forecast for

Seneca SD

  • Today

    Today: Mostly sunny, with a high near 68. East southeast wind 5 to 11 mph, with gusts as high as 20 mph.

    High: 68 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 45. East southeast wind around 8 mph.

    Low: 45 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 78. Breezy, with a south southeast wind 8 to 13 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 29 mph.

    High: 78 °F

    Mostly Sunny
    then Sunny
    and Breezy

  • Friday Night

    Friday Night: Mostly clear, with a low around 64. South wind 16 to 18 mph, with gusts as high as 30 mph.

    Low: 64 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 83. South southwest wind 16 to 18 mph, with gusts as high as 29 mph.

    High: 83 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 53. South southwest wind 9 to 15 mph becoming north northeast after midnight. Winds could gust as high as 23 mph.

    Low: 53 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 63. Breezy, with a north wind 17 to 20 mph, with gusts as high as 29 mph.

    High: 63 °F

    Partly Sunny
    and Breezy
    then Mostly
    Cloudy

  • Sunday Night

    Sunday Night: A chance of showers after 1am. Mostly cloudy, with a low around 39. Breezy, with a north wind 14 to 20 mph, with gusts as high as 29 mph. Chance of precipitation is 30%.

    Low: 39 °F

    Mostly Cloudy
    and Breezy
    then Chance
    Showers

  • Columbus Day

    Columbus Day: Showers likely, mainly before 1pm. Mostly cloudy, with a high near 50. North wind around 15 mph, with gusts as high as 24 mph. Chance of precipitation is 60%.

    High: 50 °F

    Showers
    Likely

Detailed Forecast

Today
Mostly sunny, with a high near 68. East southeast wind 5 to 11 mph, with gusts as high as 20 mph.
Tonight
Partly cloudy, with a low around 45. East southeast wind around 8 mph.
Friday
Mostly sunny, with a high near 78. Breezy, with a south southeast wind 8 to 13 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 29 mph.
Friday Night
Mostly clear, with a low around 64. South wind 16 to 18 mph, with gusts as high as 30 mph.
Saturday
Sunny, with a high near 83. South southwest wind 16 to 18 mph, with gusts as high as 29 mph.
Saturday Night
Partly cloudy, with a low around 53. South southwest wind 9 to 15 mph becoming north northeast after midnight. Winds could gust as high as 23 mph.
Sunday
Mostly cloudy, with a high near 63. Breezy, with a north wind 17 to 20 mph, with gusts as high as 29 mph.
Sunday Night
A chance of showers after 1am. Mostly cloudy, with a low around 39. Breezy, with a north wind 14 to 20 mph, with gusts as high as 29 mph. Chance of precipitation is 30%.
Columbus Day
Showers likely, mainly before 1pm. Mostly cloudy, with a high near 50. North wind around 15 mph, with gusts as high as 24 mph. Chance of precipitation is 60%.
Monday Night
Mostly cloudy, with a low around 35.
Tuesday
Partly sunny, with a high near 55.
Tuesday Night
A slight chance of showers. Partly cloudy, with a low around 40. Chance of precipitation is 20%.
Wednesday
A chance of showers. Mostly sunny, with a high near 60. 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:
8:21 am CDT Oct 8, 2026
Forecast Valid:
9am CDT Oct 8, 2026-6pm CDT Oct 14, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation