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.

Overcast

59°F

15°C

Humidity 72%
Wind Speed S 10 mph
Barometer 30.09 in
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 20 May 6:55 pm CDT
Extended Forecast for

16 Miles NW Agar SD

  • Tonight

    Tonight: Mostly cloudy, with a low around 43. Breezy, with a south southeast wind 16 to 21 mph, with gusts as high as 29 mph.

    Low: 43 °F

    Mostly Cloudy
    and Breezy
    then Partly
    Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 70. Breezy, with a south southeast wind 20 to 23 mph, with gusts as high as 31 mph.

    High: 70 °F

    Mostly Sunny
    and Breezy

  • Thursday Night

    Thursday Night: A chance of showers, mainly after 5am. Mostly cloudy, with a low around 44. Breezy, with a southeast wind 14 to 21 mph. Chance of precipitation is 50%.

    Low: 44 °F

    Mostly Cloudy
    and Breezy
    then Chance
    Showers

  • Friday

    Friday: Showers likely. Mostly cloudy, with a high near 60. East southeast wind 10 to 14 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.

    High: 60 °F

    Showers
    Likely

  • Friday Night

    Friday Night: A chance of showers before midnight. Mostly cloudy, with a low around 40. Northeast wind 5 to 10 mph becoming northwest after midnight. Chance of precipitation is 30%.

    Low: 40 °F

    Chance
    Showers then
    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 71. Northwest wind around 6 mph becoming south southwest in the afternoon.

    High: 71 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 45. South southeast wind 6 to 8 mph.

    Low: 45 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 82. South southeast wind 8 to 10 mph.

    High: 82 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 52. South southeast wind 8 to 10 mph.

    Low: 52 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly cloudy, with a low around 43. Breezy, with a south southeast wind 16 to 21 mph, with gusts as high as 29 mph.
Thursday
Mostly sunny, with a high near 70. Breezy, with a south southeast wind 20 to 23 mph, with gusts as high as 31 mph.
Thursday Night
A chance of showers, mainly after 5am. Mostly cloudy, with a low around 44. Breezy, with a southeast wind 14 to 21 mph. Chance of precipitation is 50%.
Friday
Showers likely. Mostly cloudy, with a high near 60. East southeast wind 10 to 14 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Friday Night
A chance of showers before midnight. Mostly cloudy, with a low around 40. Northeast wind 5 to 10 mph becoming northwest after midnight. Chance of precipitation is 30%.
Saturday
Mostly sunny, with a high near 71. Northwest wind around 6 mph becoming south southwest in the afternoon.
Saturday Night
Mostly clear, with a low around 45. South southeast wind 6 to 8 mph.
Sunday
Sunny, with a high near 82. South southeast wind 8 to 10 mph.
Sunday Night
Mostly clear, with a low around 52. South southeast wind 8 to 10 mph.
Memorial Day
Sunny, with a high near 88.
Monday Night
Mostly clear, with a low around 57.
Tuesday
Sunny, with a high near 87. Breezy.
Tuesday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 56. Breezy. Chance of precipitation is 20%.
Wednesday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 83. Breezy. Chance of precipitation is 20%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
16 Miles NW Agar SD
 45.02°N 100.29°W (Elev. 1621 ft)
Last Update:
5:36 pm MDT May 20, 2026
Forecast Valid:
6pm MDT May 20, 2026-6pm MDT May 27, 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