South Dakota alerts

Custer County, South Dakota weather alerts

No watches, warnings or advisories are in force for Custer County.

Checked Sun, Sep 20, 2026, 7:39 AM MDT. Times are Mountain Daylight Time.

Custer County forecastLive radar here

Radar

Reflectivity now over Custer County, South Dakota. Open it to see warnings and watches on the map.

Open the live radar with warnings and watches

Radar mosaic and map layers from NOAA MRMS. Boundaries from the Iowa Environmental Mesonet.

Alerts in force

Nothing is in force for Custer County right now. Its warnings come from the National Weather Service and appear here within a minute of being issued; every one of the past year is below.

The past year in Custer County

In the past year the National Weather Service issued 163 alerts for Custer County, including 54 severe thunderstorm warnings, 34 red flag warnings, 6 high wind warnings and 2 freeze warnings.

ProductIssuedMost recent
Severe Thunderstorm Warning54Sep 7, 2026
Red Flag Warning34Sep 11, 2026
High Wind Warning6Mar 17, 2026
Freeze Warning2May 19, 2026
Flash Flood Warning1Jun 2, 2026
Fire Weather Watch14Jul 12, 2026
Severe Thunderstorm Watch14Aug 27, 2026
High Wind Watch6Mar 12, 2026
Extreme Heat Watch1Jul 11, 2026
Wind Advisory18Jun 29, 2026
Frost Advisory3May 20, 2026
Heat Advisory3Aug 2, 2026
Winter Weather Advisory3Mar 14, 2026
Cold Weather Advisory2Jan 24, 2026
Dense Fog Advisory2Apr 2, 2026

Warnings issued

  1. Red Flag Warning
  2. Red Flag Warning
  3. Severe Thunderstorm Warning
  4. Severe Thunderstorm Warning
  5. Severe Thunderstorm Warning
  6. Red Flag Warning
  7. Severe Thunderstorm Warning
  8. Severe Thunderstorm Warning
  9. Severe Thunderstorm Warning
  10. Severe Thunderstorm Warning
  11. Severe Thunderstorm Warning
  12. Severe Thunderstorm Warning
  13. Severe Thunderstorm Warning
  14. Severe Thunderstorm Warning
  15. Severe Thunderstorm Warning
  16. Severe Thunderstorm Warning
  17. Severe Thunderstorm Warning
  18. Severe Thunderstorm Warning
  19. Severe Thunderstorm Warning
  20. Severe Thunderstorm Warning
  21. Severe Thunderstorm Warning
  22. Severe Thunderstorm Warning
  23. Red Flag Warning
  24. Red Flag Warning
  25. Red Flag Warning
  26. Severe Thunderstorm Warning
  27. Severe Thunderstorm Warning
  28. Severe Thunderstorm Warning
  29. Severe Thunderstorm Warning
  30. Red Flag Warning
  31. Red Flag Warning
  32. Severe Thunderstorm Warning
  33. Severe Thunderstorm Warning
  34. Severe Thunderstorm Warning
  35. Severe Thunderstorm Warning
  36. Severe Thunderstorm Warning
  37. Severe Thunderstorm Warning
  38. Severe Thunderstorm Warning
  39. Severe Thunderstorm Warning
  40. Severe Thunderstorm Warning
  41. Severe Thunderstorm Warning
  42. Severe Thunderstorm Warning
  43. Red Flag Warning
  44. Severe Thunderstorm Warning
  45. Severe Thunderstorm Warning
  46. Severe Thunderstorm Warning
  47. Severe Thunderstorm Warning
  48. Severe Thunderstorm Warning
  49. Severe Thunderstorm Warning
  50. Severe Thunderstorm Warning
  51. Severe Thunderstorm Warning
  52. Severe Thunderstorm Warning
  53. Severe Thunderstorm Warning
  54. Severe Thunderstorm Warning
  55. Severe Thunderstorm Warning
  56. Severe Thunderstorm Warning
  57. Severe Thunderstorm Warning
  58. Red Flag Warning
  59. Red Flag Warning
  60. Red Flag Warning

And 37 earlier warnings.

Every alert, most recent first
  1. Red Flag Warning
  2. Red Flag Warning
  3. Severe Thunderstorm Warning
  4. Severe Thunderstorm Warning
  5. Severe Thunderstorm Warning
  6. Red Flag Warning
  7. Severe Thunderstorm Warning
  8. Severe Thunderstorm Watch
  9. Severe Thunderstorm Warning
  10. Severe Thunderstorm Warning
  11. Severe Thunderstorm Watch
  12. Severe Thunderstorm Warning
  13. Severe Thunderstorm Warning
  14. Severe Thunderstorm Watch
  15. Severe Thunderstorm Warning
  16. Severe Thunderstorm Warning
  17. Severe Thunderstorm Warning
  18. Severe Thunderstorm Warning
  19. Severe Thunderstorm Warning
  20. Severe Thunderstorm Watch
  21. Severe Thunderstorm Warning
  22. Severe Thunderstorm Warning
  23. Severe Thunderstorm Warning
  24. Severe Thunderstorm Warning
  25. Severe Thunderstorm Warning
  26. Severe Thunderstorm Watch
  27. Severe Thunderstorm Warning
  28. Red Flag Warning
  29. Red Flag Warning
  30. Red Flag Warning
  31. Heat Advisory
  32. Severe Thunderstorm Warning
  33. Severe Thunderstorm Watch
  34. Severe Thunderstorm Warning
  35. Severe Thunderstorm Warning
  36. Severe Thunderstorm Warning
  37. Heat Advisory
  38. Red Flag Warning
  39. Fire Weather Watch
  40. Red Flag Warning

The 40 most recent of 163.

From the Iowa Environmental Mesonet’s archive of NWS watches, warnings and advisories (VTEC), by the county’s own code and the forecast zones inside it. Each date links to the event at the IEM.

Nearby

The counties around Custer County, with what is in force in each.

What this means

Warning
The hazard is happening or about to. Act now: a tornado warning means take shelter, a flash flood warning means move to higher ground.
Watch
Conditions favor the hazard. Nothing is happening yet; have a plan and be ready to act if a warning follows.
Advisory
A hazard that is less serious than a warning but can still cause trouble, such as dense fog, heat or light ice.
Statement
Information about weather that does not yet meet a warning: a strong storm, a hydrologic update, or a special weather statement.

Severity (extreme, severe, moderate, minor) is the rating the issuing office gives each product. More on the difference: tornado watch vs. tornado warning. Alerts come from the National Weather Service; follow its instructions and your local officials.

Sources

Alerts from the National Weather Service's public feed, read afresh every minute, and matched to counties and zones by their UGC codes. Warnings from outside the United States come from each country's own meteorological service. Follow the issuing office's instructions and your local officials.