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

57°F

14°C

Humidity 63%
Wind Speed NE 7 mph
Barometer 30.06 in
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Last update 19 Jun 10:35 pm CDT
Extended Forecast for

Agar SD

  • Tonight

    Tonight: Partly cloudy, with a low around 46. East wind 3 to 5 mph.

    Low: 46 °F

    Partly Cloudy

  • Saturday

    Saturday: Increasing clouds, with a high near 78. East southeast wind 6 to 16 mph, with gusts as high as 25 mph.

    High: 78 °F

    Increasing
    Clouds

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2am. Low around 51. East wind 14 to 17 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 51 °F

    Chance
    Showers then
    Showers

  • Sunday

    Sunday: Showers and possibly a thunderstorm. High near 64. Breezy, with an east wind 17 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New precipitation amounts between three quarters and one inch possible.

    High: 64 °F

    Showers and
    Breezy

  • Sunday Night

    Sunday Night: A chance of showers before 1am. Mostly cloudy, with a low around 47. East northeast wind 6 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 40%.

    Low: 47 °F

    Chance
    Showers

  • Monday

    Monday: A chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 72. Northeast wind 5 to 8 mph becoming south in the afternoon. Chance of precipitation is 30%.

    High: 72 °F

    Mostly Cloudy
    then Chance
    Showers

  • Monday Night

    Monday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 49. East wind 6 to 9 mph becoming west after midnight. Chance of precipitation is 70%.

    Low: 49 °F

    Showers
    Likely

  • Tuesday

    Tuesday: A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 73. Breezy, with a west northwest wind 9 to 14 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 20%.

    High: 73 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms and
    Breezy

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 46. North northwest wind 12 to 17 mph decreasing to 6 to 11 mph after midnight. Winds could gust as high as 25 mph.

    Low: 46 °F

    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 46. East wind 3 to 5 mph.
Saturday
Increasing clouds, with a high near 78. East southeast wind 6 to 16 mph, with gusts as high as 25 mph.
Saturday Night
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2am. Low around 51. East wind 14 to 17 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday
Showers and possibly a thunderstorm. High near 64. Breezy, with an east wind 17 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New precipitation amounts between three quarters and one inch possible.
Sunday Night
A chance of showers before 1am. Mostly cloudy, with a low around 47. East northeast wind 6 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 40%.
Monday
A chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 72. Northeast wind 5 to 8 mph becoming south in the afternoon. Chance of precipitation is 30%.
Monday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 49. East wind 6 to 9 mph becoming west after midnight. Chance of precipitation is 70%.
Tuesday
A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 73. Breezy, with a west northwest wind 9 to 14 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 20%.
Tuesday Night
Mostly clear, with a low around 46. North northwest wind 12 to 17 mph decreasing to 6 to 11 mph after midnight. Winds could gust as high as 25 mph.
Wednesday
Mostly sunny, with a high near 74.
Wednesday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 48. Chance of precipitation is 20%.
Thursday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 77. Chance of precipitation is 20%.
Thursday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 52. Chance of precipitation is 30%.
Friday
A chance of showers and thunderstorms. Partly sunny, with a high near 79. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
Agar SD
 44.83°N 100.07°W (Elev. 1824 ft)
Last Update:
10:36 pm CDT Jun 19, 2026
Forecast Valid:
11pm CDT Jun 19, 2026-6pm CDT Jun 26, 2026
 
Forecast Discussion
 
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Additional Resources

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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