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

Hazardous Weather Conditions

Current conditions at

ONIDAMUNC (K98D)

Lat: 44.7°NLon: 100.1°WElev: 1874ft.

Fair

54°F

12°C

Humidity 41%
Wind Speed NE 5 mph
Barometer 29.80 in
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Wind Chill53°F (12°C)
Last update 16 May 12:55 am CDT
Extended Forecast for

17 Miles W Agar SD

Red Flag Warning May 16, 03:00pm until May 16, 10:00pm
Click here for hazard details and duration
Red Flag Warning

  • Overnight

    Overnight: Mostly clear, with a low around 45. Light north wind.

    Low: 45 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 79. North northeast wind 5 to 15 mph becoming east southeast in the afternoon.

    High: 79 °F

    Sunny

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 4am. Low around 48. Breezy, with an east wind 20 to 25 mph, with gusts as high as 36 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 48 °F

    Breezy.
    Increasing
    Clouds then
    Showers

  • Sunday

    Sunday: Showers and thunderstorms before 4pm, then a chance of showers. High near 66. Breezy, with an east wind 13 to 21 mph becoming north northwest in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 66 °F

    Showers and
    Breezy

  • Sunday Night

    Sunday Night: A slight chance of showers before 1am. Mostly cloudy, with a low around 39. Breezy, with a north wind 22 to 24 mph, with gusts as high as 32 mph. Chance of precipitation is 20%.

    Low: 39 °F

    Slight Chance
    Showers and
    Breezy

  • Monday

    Monday: A chance of showers before 1pm, then showers and possibly a thunderstorm between 1pm and 4pm, then showers after 4pm. High near 50. Breezy, with a north wind around 23 mph, with gusts as high as 32 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 50 °F

    Breezy.
    Chance
    Showers then
    Showers

  • Monday Night

    Monday Night: Showers, mainly before 1am. Low around 36. Breezy, with a north northwest wind around 23 mph, with gusts as high as 31 mph. Chance of precipitation is 90%.

    Low: 36 °F

    Showers and
    Breezy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 53. Breezy, with a north northwest wind 15 to 23 mph.

    High: 53 °F

    Mostly Cloudy
    and Breezy
    then Partly
    Sunny

  • Tuesday Night

    Tuesday Night: Patchy frost after 5am. Otherwise, partly cloudy, with a low around 34. North northwest wind 5 to 11 mph becoming east after midnight.

    Low: 34 °F

    Partly Cloudy
    then Patchy
    Frost

Detailed Forecast

Overnight
Mostly clear, with a low around 45. Light north wind.
Saturday
Sunny, with a high near 79. North northeast wind 5 to 15 mph becoming east southeast in the afternoon.
Saturday Night
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 4am. Low around 48. Breezy, with an east wind 20 to 25 mph, with gusts as high as 36 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Sunday
Showers and thunderstorms before 4pm, then a chance of showers. High near 66. Breezy, with an east wind 13 to 21 mph becoming north northwest in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Sunday Night
A slight chance of showers before 1am. Mostly cloudy, with a low around 39. Breezy, with a north wind 22 to 24 mph, with gusts as high as 32 mph. Chance of precipitation is 20%.
Monday
A chance of showers before 1pm, then showers and possibly a thunderstorm between 1pm and 4pm, then showers after 4pm. High near 50. Breezy, with a north wind around 23 mph, with gusts as high as 32 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday Night
Showers, mainly before 1am. Low around 36. Breezy, with a north northwest wind around 23 mph, with gusts as high as 31 mph. Chance of precipitation is 90%.
Tuesday
Mostly cloudy, with a high near 53. Breezy, with a north northwest wind 15 to 23 mph.
Tuesday Night
Patchy frost after 5am. Otherwise, partly cloudy, with a low around 34. North northwest wind 5 to 11 mph becoming east after midnight.
Wednesday
Patchy frost before 8am. Otherwise, partly sunny, with a high near 66.
Wednesday Night
Mostly cloudy, with a low around 42.
Thursday
A slight chance of showers. Partly sunny, with a high near 71. Chance of precipitation is 20%.
Thursday Night
Partly cloudy, with a low around 46.
Friday
A slight chance of showers. Mostly sunny, with a high near 72. Chance of precipitation is 20%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
17 Miles W Agar SD
 44.8°N 100.43°W (Elev. 1755 ft)
Last Update:
1:01 am CDT May 16, 2026
Forecast Valid:
1am CDT May 16, 2026-6pm CDT May 22, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation