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Updraft® - Minnesota Weather News

September 21, 2021 5:17 PM

Frosty! First frost advisory of the season for parts of northern Minnesota

A cool crisp fall forecast ahead for most of the state

Frost advisory — Frost advisory for northeast Minnesota Wednesday morning.
Duluth National Weather Service

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It’s that time of the year up north. Frost is now a more common visitor to the northland on crips autumnal mornings.

Some locations in northern Minnesota saw frost last Saturday morning. Embarrass dipped to 31 degrees early Saturday.

But Wednesday morning’s frost advisory covers a lot more territory. Temperatures in the low to mid-30s and scattered frost will be more widespread.

Here’s a look at projected low temperatures for northeast Minnesota Wednesday morning:

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Forecast minimum temps Wednesday — Forecast minimum temps Wednesday.
NOAA

Including the cities of International Falls, Ely, Isabella, Bigfork, Hibbing, Grand Rapids, Hill City, Aitkin, Duluth, Pine City, Hinckley, Superior, Grantsburg, and Spooner
452 PM CDT Tue Sep 21 2021
...FROST ADVISORY REMAINS IN EFFECT FROM 1 AM TO 8 AM CDT WEDNESDAY...
* WHAT...Temperatures as low as 34 will result in frost formation.
* WHERE...Portions of northwest Wisconsin and east central, north central and northeast Minnesota.
* WHEN...From 1 AM to 8 AM CDT Wednesday.
* IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered.

The Twin Cities and southern Minnesota will bottom out in the 40s Wednesday morning. Good sleeping weather as the old-timers used to say.

Forecast minimum temps Wednesday morning — Forecast minimum temps Wednesday morning.
NOAA

Highs Wednesday recover a few degrees from Tuesday’s cool temperatures. We’ll top out closer to 70 degrees in the Twin Cities with 70s in the west.

Forecast high temperatures Wednesday — Forecast high temperatures Wednesday.
NOAA

Thursday brings even milder air before highs cool back down into the 60s Friday and Saturday.

Forecast high temperatures Thursday — Forecast high temperatures Thursday.
NOAA

By Sunday and Monday, milder air pushes highs in the 70s back into Minnesota once again.

Forecast high temperatures Sunday — Forecast high temperatures Sunday.
NOAA

I have a hunch we’ve seen our last 90-degree temperature in the Twin Cities this year. But more 80s may still lie ahead.

Stay tuned.

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