Updraft® - Minnesota Weather News

Frost advisory Wednesday morning for much of NE Minnesota

Lows in the 30s may reach the far northern Twin Cities suburbs

Frost advisory
Frost advisory
Duluth National Weather Service office

It’s back.

There has been some patchy frost in parts of northeastern Minnesota already this month, but a more widespread frost will bring the first frost of the season to many locations Wednesday morning.

Temperatures will dip into the 30s across most of northeastern Minnesota and northwestern Wisconsin Wednesday morning.

Forecast low temperatures Wednesday morning
Forecast low temperatures Wednesday morning
National Oceanic and Atmospheric Administration

A frost advisory has been issued for most of northeastern Minnesota and northwestern Wisconsin.

Including the cities of International Falls, Ely, Isabella, Hibbing, Two Harbors, Silver Bay, Grand Marais, Grand Rapids, Brainerd, Hill City, Aitkin, Duluth, Pine City, Hinckley, Superior, Washburn, Bayfield, Ashland, Hurley, Grantsburg, Spooner, Hayward, and Phillips

936 AM CDT Tue Sep 12 2023

...FROST ADVISORY REMAINS IN EFFECT FROM 2 AM TO 8 AM CDT WEDNESDAY...

* WHAT...Temperatures as low as 33 will result in frost formation.

* WHERE...Portions of east central, north central and northeast Minnesota and north central and northwest Wisconsin.

* WHEN...From 2 AM to 8 AM CDT Wednesday.

* IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered.

* ADDITIONAL DETAILS...Frost will develop in low-lying areas. Temperatures near Lake Superior will likely remain above 33 degrees.

Temperatures will dip into the 40s in the greater Twin Cities area Wednesday morning.

Forecast low temperatures Wednesday
Forecast low temperatures Wednesday morning
NOAA

Wednesday will likely be the coldest morning in the Twin Cities in about four months, since we hit 44 degrees on May 20. The last time Minneapolis-St. Paul International Airport hit 32 degrees was on April 25.

Temperatures will rebound again later Wednesday and Thursday. Highs will reach the 70s again in western Minnesota on Wednesday afternoon.

Forecast high temperatures Wednesday
Forecast high temperatures Wednesday
NOAA

Thursday brings the warmest day this week, with highs near 80 again in the Twin Cities and much of southern and western Minnesota.

Forecast high temperatures Thursday
Forecast high temperatures Thursday
NOAA

Friday brings slightly cooler temperatures, and the next chance for scattered rainfall across Minnesota.