Montana alerts

Lewis and Clark County, Montana weather alerts

No watches, warnings or advisories are in force for Lewis and Clark County.

Checked Mon, Sep 21, 2026, 10:15 PM MDT. Times are Mountain Daylight Time.

Lewis and Clark County forecastLive radar here

Warnings on the map

Every watch, warning and advisory the National Weather Service has in force over Lewis and Clark 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 Lewis and Clark 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 Lewis and Clark 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 Lewis and Clark County

In the past year the National Weather Service issued 176 alerts for Lewis and Clark County, including 28 high wind warnings, 23 severe thunderstorm warnings, 7 winter storm warnings and 6 red flag warnings.

ProductIssuedMost recent
High Wind Warning28Jun 16, 2026
Severe Thunderstorm Warning23Sep 6, 2026
Winter Storm Warning7Apr 2, 2026
Red Flag Warning6Aug 7, 2026
Flash Flood Warning3Jul 22, 2026
Snow Squall Warning3Dec 27, 2025
Blizzard Warning2Mar 14, 2026
Ice Storm Warning1Dec 11, 2025
High Wind Watch26Jun 10, 2026
Winter Storm Watch11Apr 22, 2026
Fire Weather Watch6Aug 7, 2026
Flash Flood Watch6Sep 18, 2026
Severe Thunderstorm Watch6Sep 6, 2026
Flood Watch4Sep 18, 2026
Extreme Heat Watch1Jul 12, 2026
Winter Weather Advisory32May 17, 2026
Flood Advisory5Jul 22, 2026
Heat Advisory3Aug 1, 2026
Cold Weather Advisory2Feb 17, 2026
Dense Fog Advisory1Dec 24, 2025

Warnings issued

  1. Severe Thunderstorm Warning
  2. Severe Thunderstorm 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. Red Flag Warning
  14. Red Flag Warning
  15. Severe Thunderstorm Warning
  16. Flash Flood Warning
  17. Severe Thunderstorm Warning
  18. Severe Thunderstorm Warning
  19. Flash Flood 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. Flash Flood Warning
  28. Severe Thunderstorm Warning
  29. Severe Thunderstorm Warning
  30. High Wind Warning
  31. Severe Thunderstorm Warning
  32. High Wind Warning
  33. Severe Thunderstorm Warning
  34. High Wind Warning
  35. Winter Storm Warning
  36. Red Flag Warning
  37. High Wind Warning
  38. High Wind Warning
  39. High Wind Warning
  40. High Wind Warning
  41. High Wind Warning
  42. Blizzard Warning
  43. Winter Storm Warning
  44. Blizzard Warning
  45. High Wind Warning
  46. High Wind Warning
  47. High Wind Warning
  48. High Wind Warning
  49. High Wind Warning
  50. High Wind Warning
  51. High Wind Warning
  52. High Wind Warning
  53. High Wind Warning
  54. Snow Squall Warning
  55. Snow Squall Warning
  56. High Wind Warning
  57. Snow Squall Warning
  58. High Wind Warning
  59. Winter Storm Warning
  60. High Wind Warning

And 13 earlier warnings.

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

The 40 most recent of 176.

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 Lewis and Clark 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.