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 and Breezy

75°F

24°C

Humidity 19%
Wind Speed NW 21 G 28 mph
Barometer 29.75 in
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Last update 15 May 12:15 pm CDT
Extended Forecast for

Harrold SD

Red Flag Warning May 15, 12:32pm until May 15, 07:00pm
Click here for hazard details and duration
Red Flag Warning
  •  
    Red Flag Warning May 15, 12:32pm until May 15, 07:00pm

    NOW until 7:00pm Fri

    Red Flag Warning

  • This Afternoon

    High: 81 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 46. West northwest wind 7 to 17 mph becoming northeast after midnight.

    Low: 46 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 82. Breezy, with an east northeast wind 8 to 13 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 29 mph.

    High: 82 °F

    Mostly Sunny
    then Sunny
    and Breezy

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am. Low around 51. Breezy, with an east southeast wind 21 to 23 mph, with gusts as high as 33 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 51 °F

    Breezy.
    Chance
    Showers then
    Showers

  • Sunday

    Sunday: Showers and possibly a thunderstorm before 7am, then showers between 7am and 1pm, then showers likely and possibly a thunderstorm after 1pm. High near 73. Breezy, with an east wind 15 to 21 mph becoming northwest in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 73 °F

    Showers and
    Breezy

  • Sunday Night

    Sunday Night: A chance of showers. Mostly cloudy, with a low around 42. Breezy, with a north northwest wind 22 to 24 mph. Chance of precipitation is 50%.

    Low: 42 °F

    Chance
    Showers and
    Breezy

  • Monday

    Monday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1pm. High near 55. Breezy, with a north wind 24 to 28 mph, with gusts as high as 36 mph. Chance of precipitation is 80%.

    High: 55 °F

    Breezy.
    Chance
    Showers then
    Showers

  • Monday Night

    Monday Night: Showers likely, mainly before 1am. Cloudy, with a low around 37. Breezy, with a north wind 24 to 26 mph, with gusts as high as 34 mph. Chance of precipitation is 70%.

    Low: 37 °F

    Showers
    Likely and
    Breezy

Detailed Forecast

This Afternoon
Sunny, with a high near 81. West northwest wind 14 to 18 mph, with gusts as high as 26 mph.
Tonight
Mostly clear, with a low around 46. West northwest wind 7 to 17 mph becoming northeast after midnight.
Saturday
Mostly sunny, with a high near 82. Breezy, with an east northeast wind 8 to 13 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 29 mph.
Saturday Night
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am. Low around 51. Breezy, with an east southeast wind 21 to 23 mph, with gusts as high as 33 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Sunday
Showers and possibly a thunderstorm before 7am, then showers between 7am and 1pm, then showers likely and possibly a thunderstorm after 1pm. High near 73. Breezy, with an east wind 15 to 21 mph becoming northwest in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 42. Breezy, with a north northwest wind 22 to 24 mph. Chance of precipitation is 50%.
Monday
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1pm. High near 55. Breezy, with a north wind 24 to 28 mph, with gusts as high as 36 mph. Chance of precipitation is 80%.
Monday Night
Showers likely, mainly before 1am. Cloudy, with a low around 37. Breezy, with a north wind 24 to 26 mph, with gusts as high as 34 mph. Chance of precipitation is 70%.
Tuesday
A chance of showers before 1pm. Mostly cloudy, with a high near 53. Breezy, with a northwest wind 22 to 28 mph. Chance of precipitation is 30%.
Tuesday Night
Partly cloudy, with a low around 33.
Wednesday
Mostly sunny, with a high near 65.
Wednesday Night
Partly cloudy, with a low around 40.
Thursday
Mostly sunny, with a high near 74.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Harrold SD
 44.52°N 99.72°W (Elev. 1788 ft)
Last Update:
11:36 am CDT May 15, 2026
Forecast Valid:
12pm CDT May 15, 2026-6pm CDT May 21, 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