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

79°F

26°C

Humidity 18%
Wind Speed NW 22 G 29 mph
Barometer 29.75 in
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 15 May 1:35 pm CDT
Extended Forecast for

Harrold SD

Red Flag Warning May 15, 01:56pm until May 15, 07:00pm
Click here for hazard details and duration
Red Flag Warning
  •  
    Red Flag Warning May 15, 01:56pm until May 15, 07:00pm

    NOW until 7:00pm Fri

    Red Flag Warning

  • This Afternoon

    High: 81 °F

    Sunny and
    Breezy

  • Tonight

    Tonight: Mostly clear, with a low around 45. North northwest wind 13 to 18 mph decreasing to 6 to 11 mph after midnight.

    Low: 45 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 81. Breezy, with an east wind 7 to 12 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 28 mph.

    High: 81 °F

    Sunny then
    Sunny and
    Breezy

  • Saturday Night

    Saturday Night: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 4am. Low around 51. Breezy, with an east wind 21 to 24 mph, with gusts as high as 34 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 51 °F

    Breezy.
    Slight Chance
    Showers then
    Showers

  • Sunday

    Sunday: Showers, with thunderstorms also possible after 1pm. High near 72. Breezy, with an east wind 15 to 20 mph becoming west southwest in the afternoon. Winds could gust as high as 28 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 72 °F

    Showers and
    Breezy

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 40. Breezy, with a north northwest wind around 22 mph, with gusts as high as 30 mph. Chance of precipitation is 50%.

    Low: 40 °F

    Chance
    Showers and
    Breezy

  • Monday

    Monday: A chance of showers, then showers and possibly a thunderstorm after 1pm. High near 53. Breezy, with a north wind 24 to 26 mph, with gusts as high as 36 mph. Chance of precipitation is 90%.

    High: 53 °F

    Breezy.
    Chance
    Showers then
    Showers

  • Monday Night

    Monday Night: Showers likely, mainly before 1am. Cloudy, with a low around 35. Breezy, with a north northwest wind around 26 mph, with gusts as high as 36 mph. Chance of precipitation is 70%.

    Low: 35 °F

    Showers
    Likely and
    Breezy

Detailed Forecast

This Afternoon
Sunny, with a high near 81. Breezy, with a west northwest wind 14 to 20 mph, with gusts as high as 28 mph.
Tonight
Mostly clear, with a low around 45. North northwest wind 13 to 18 mph decreasing to 6 to 11 mph after midnight.
Saturday
Sunny, with a high near 81. Breezy, with an east wind 7 to 12 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 28 mph.
Saturday Night
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 4am. Low around 51. Breezy, with an east wind 21 to 24 mph, with gusts as high as 34 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Sunday
Showers, with thunderstorms also possible after 1pm. High near 72. Breezy, with an east wind 15 to 20 mph becoming west southwest in the afternoon. Winds could gust as high as 28 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 40. Breezy, with a north northwest wind around 22 mph, with gusts as high as 30 mph. Chance of precipitation is 50%.
Monday
A chance of showers, then showers and possibly a thunderstorm after 1pm. High near 53. Breezy, with a north wind 24 to 26 mph, with gusts as high as 36 mph. Chance of precipitation is 90%.
Monday Night
Showers likely, mainly before 1am. Cloudy, with a low around 35. Breezy, with a north northwest wind around 26 mph, with gusts as high as 36 mph. Chance of precipitation is 70%.
Tuesday
Mostly cloudy, with a high near 55. Breezy, with a northwest wind 22 to 28 mph, with gusts as high as 37 mph.
Tuesday Night
Partly cloudy, with a low around 33.
Wednesday
Partly sunny, with a high near 66.
Wednesday Night
Mostly cloudy, with a low around 41.
Thursday
A slight chance of showers. Mostly sunny, with a high near 71. Chance of precipitation is 20%.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Harrold SD
 44.52°N 99.75°W (Elev. 1804 ft)
Last Update:
1:31 pm CDT May 15, 2026
Forecast Valid:
1pm CDT May 15, 2026-6pm CDT May 21, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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