New Hampshire alerts

Grafton County, New Hampshire weather alerts

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

Checked Tue, Sep 22, 2026, 3:40 AM EDT. Times are Eastern Daylight Time.

Grafton County forecastLive radar here

Warnings on the map

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

Every watch, warning and advisory the National Weather Service has in force over Grafton County, New Hampshire 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 Grafton 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 Grafton County

In the past year the National Weather Service issued 87 alerts for Grafton County, including 15 severe thunderstorm warnings, 4 flood warnings, 4 freeze warnings and 4 winter storm warnings.

ProductIssuedMost recent
Severe Thunderstorm Warning15Aug 3, 2026
Flood Warning4Jun 19, 2026
Freeze Warning4May 21, 2026
Winter Storm Warning4Feb 20, 2026
Extreme Cold Warning1Jan 24, 2026
Extreme Heat Warning1Jul 1, 2026
Flash Flood Warning1Jun 11, 2026
Snow Squall Warning1Jan 22, 2026
Flood Watch4Jul 29, 2026
Extreme Cold Watch2Feb 7, 2026
Severe Thunderstorm Watch2Jul 14, 2026
Winter Storm Watch2Jan 25, 2026
Extreme Heat Watch1Jul 1, 2026
Freeze Watch1Oct 9, 2025
Tornado Watch1Jun 18, 2026
Winter Weather Advisory18Apr 5, 2026
Cold Weather Advisory7Feb 8, 2026
Frost Advisory6May 30, 2026
Flood Advisory4Jun 15, 2026
Heat Advisory4Jul 14, 2026
Wind Advisory4Mar 17, 2026

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

The 40 most recent of 87.

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 Grafton 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.