Montana alerts

Custer County, Montana weather alerts

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

Checked Tue, Sep 22, 2026, 2:10 AM MDT. Times are Mountain Daylight Time.

Custer County forecastLive radar here

Warnings on the map

Every watch, warning and advisory the National Weather Service has in force over Custer County, Montana. Open it for the live map, where it pans and zooms.

Every watch, warning and advisory the National Weather Service has in force over Custer County, Montana Open the live map with warnings and watches

Map layer from NOAA National Weather Service. 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 77 alerts for Custer County, including 18 severe thunderstorm warnings, 8 red flag warnings, 7 high wind warnings and 3 extreme heat warnings.

ProductIssuedMost recent
Severe Thunderstorm Warning18Sep 2, 2026
Red Flag Warning8Sep 4, 2026
High Wind Warning7Sep 14, 2026
Extreme Heat Warning3Aug 1, 2026
Winter Storm Warning2Mar 13, 2026
Severe Thunderstorm Watch9Aug 30, 2026
High Wind Watch5Mar 12, 2026
Fire Weather Watch4Sep 4, 2026
Extreme Heat Watch3Aug 1, 2026
Winter Storm Watch3Apr 3, 2026
Flood Watch1Sep 18, 2026
Winter Weather Advisory8Apr 2, 2026
Cold Weather Advisory3Jan 25, 2026
Dense Fog Advisory2Jan 1, 2026
Heat Advisory1Jul 28, 2026

Warnings issued

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

The 40 most recent of 77.

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.