National Weather ServiceMinnesotaExtreme Heat WarningArchive to October 1, 2026
Extreme Heat Warnings in Minnesota
The National Weather Service issued 8 extreme heat warnings for Minnesota in 2025 and 4 a year on average in 2008-2025; in 2021-2025 it had the 24th most of any state. 2026 through September: 13, 260% above the average of 4 for those months in 2008-2025. Ramsey was covered most often (33 times since 2008).
How many extreme heat warnings does Minnesota get?
Every extreme heat warning that covered part of Minnesota. 2026 is an outline: the year is not over.
The numbers
| Year | Count |
|---|---|
| 2026 (through September) | 13 |
| 2025 | 8 |
| 2024 | 4 |
| 2023 | 8 |
| 2022 | 5 |
| 2021 | 2 |
| 2020 | 5 |
| 2019 | 4 |
| 2018 | 5 |
| 2017 | 0 |
| 2016 | 6 |
| 2015 | 0 |
| 2014 | 1 |
| 2013 | 2 |
| 2012 | 3 |
| 2011 | 9 |
| 2010 | 2 |
| 2009 | 1 |
| 2008 | 0 |
Source: Iowa Environmental Mesonet archive of National Weather Service watches, warnings and advisories (VTEC); National Weather Service. Data as of October 1, 2026.
When in the year does Minnesota get them?
Sum of 2008-2025; the busiest month is labelled.
Source: Iowa Environmental Mesonet archive of National Weather Service watches, warnings and advisories (VTEC); National Weather Service. Data as of October 1, 2026.
Where in Minnesota?
| County or forecast zone | Since 2008 | Since 2023 | Last issued |
|---|---|---|---|
| Ramsey | 33 | 9 | July 25, 2026 |
| Hennepin | 33 | 9 | July 25, 2026 |
| Washington | 27 | 9 | July 25, 2026 |
| Scott | 27 | 9 | July 25, 2026 |
| Dakota | 27 | 9 | July 25, 2026 |
| Carver | 27 | 9 | July 25, 2026 |
| Anoka | 27 | 9 | July 25, 2026 |
| Watonwan | 19 | 9 | July 25, 2026 |
| Sibley | 19 | 9 | July 25, 2026 |
| Renville | 19 | 9 | July 25, 2026 |
| Redwood | 19 | 9 | July 25, 2026 |
| Nicollet | 19 | 9 | July 25, 2026 |
The NWS issues these products for counties or forecast zones; a zone can be part of a county or a mountain range.
Source: Iowa Environmental Mesonet archive of National Weather Service watches, warnings and advisories (VTEC); National Weather Service. Data as of October 1, 2026.
The latest extreme heat warnings for Minnesota in AreaZine's record
NWS La CrosseWarningJuly 26, 2026
Extreme Heat Warning: Mitchell, Howard, Winneshiek and 12 more, IA and MN
Expired 9:00 p.m. CDT, July 27, 2026
NWS Grand ForksWarningJuly 26, 2026
Extreme Heat Warning: West Polk, Mahnomen, Hubbard and 10 more, MN and ND
Expired 9:00 p.m. CDT, July 26, 2026
NWS DuluthWarningJuly 26, 2026
Extreme Heat Warning: Carlton/South St. Louis, MN
Expired 9:00 p.m. CDT, July 26, 2026
NWS AberdeenWarningJuly 25, 2026
Extreme Heat Warning: Traverse, Big Stone, Brown and 9 more, MN and SD
Expired 9:00 p.m. CDT, July 26, 2026
NWS Sioux FallsWarningJuly 25, 2026
Extreme Heat Warning: Lyon, Osceola, Dickinson and 20 more, IA and MN
Expired 8:00 p.m. CDT, July 26, 2026
NWS Twin Cities/ChanhassenWarningJuly 25, 2026
Extreme Heat Warning: Douglas, Todd, Morrison and 2 more, MN
Expired 9:00 p.m. CDT, July 26, 2026
NWS Twin Cities/ChanhassenWarningJuly 17, 2026
Extreme Heat Warning: Hennepin, Anoka, Ramsey and 4 more, MN
Expired 9:00 p.m. CDT, July 17, 2026
NWS Grand ForksWarningJuly 14, 2026
Extreme Heat Warning: West Polk, East Polk, North Clearwater and 5 more, MN and ND
Expired 10:00 p.m. CDT, July 14, 2026
This list is AreaZine's record of the NWS alert feed, kept since April 6, 2026; the counts above come from the complete IEM archive.
Source: National Weather Service alerts (api.weather.gov).
What is an extreme heat warning?
An extreme heat warning means dangerous heat is expected, measured by heat index or temperature thresholds each office sets. It replaced the excessive heat warning in 2025. A warning means the hazard is happening, about to happen, or very likely: act now to protect people and property. AreaZine's counts include the excessive heat warnings issued before the change. The national record · Every warning type in Minnesota.