In the midst of a prolonged warm spell that began during what was already a very warm September, sunny skies and southerly winds conspired to boost temperatures into record territory across virtually all of Minnesota on October 4th, 2025.* In many parts of Minnesota, this was the latest date on record with such high temperatures.
Temperatures soared into the 80s in northeastern Minnesota, and the 90s F across virtually all of the west and the south. The five "first-order" climate stations at Duluth, International Falls, Rochester, Saint Cloud, and the Twin Cities all broke high temperature records for the date. In the Twin Cities and Saint Could, the maximum of 91 F was highest temperature ever recorded so late in the season; at Saint Cloud, it was also the latest date on record to reach 90 F or higher. Several dozen other stations with at least 50 years of observing history also broke maximum temperature records for the date, with many observing the highest temperature to occur so late in the year.
October 4, 2025 temperature statistics for Minnesota's first-order climate stations.
Statistic | Duluth | International Falls | Rochester | St. Cloud | Twin Cities |
|---|---|---|---|---|---|
High temperature (F) | 84 | 85 | 86 | 91 | 91 |
Old Record (F) | 83 | 82 | 84 | 88 | 89 |
Normal High (F) | 59 | 58 | 64 | 63 | 65 |
Departure (F) | + 25 | + 27 | + 22 | + 28 | + 26 |
*Many National Weather Service observers record their 24-hour maximum and minimum temperatures (along with precipitation totals) in the morning, meaning that hot weather occurring on one date often displays as having occurred on the next date. Thus, depending on time of observation, some station records from this hot weather were posted on the 5th, rather than the 4th.
October 23, 2025
KAB