Seasonable temperatures as fall begins Wednesday

Minnesota could see areas of frost the final morning of summer

Sunshine dominates the forecast most days through the weekend as Minnesota officially turns the corner from summer into fall.

Tuesday’s Forecast

weather graphic
Forecast weather pattern by Tuesday evening
National Weather Service

The storm system that brought Minnesota showers and thunderstorms Monday has continued its trek eastward, and now high pressure is building in. 

That has returned clear skies across the state, and with a continued northerly flow behind Monday’s cold front, most of the state started Tuesday in the 40s, with a few low 50s.

Breezy northwest winds continue during the day, keeping highs slightly below average, with almost the entire state in the 60s under mostly sunny skies. 

weather graphic
Tuesday high temperatures
National Weather Service

Extended forecast

Given the cool temperatures Tuesday and continued clear skies overnight, Wednesday will start even chillier for most of Minnesota, with even more spots in the 40s. 

Most of the Arrowhead is expected to drop into the 30s, leading to a frost advisory for that area from 1 a.m. to 8 a.m. Wednesday morning.

weather graphic
Frost advisory Wednesday morning
National Weather Service

Temperatures rebound quickly during the day though, with highs making it into the upper 60s, with a few 70s west, under sunny skies. Autumn begins at 2:20 p.m. Wednesday in Minnesota.

weather graphic
Twin Cities temperatures through Friday

A few more spots see the low 70s Thursday, before a cold front brings back cooler 50s north and low 60s south on Friday. 

Here is that temperature trend for the Twin Cities:

The same system that cools temperatures Friday also provides the next rain prospect for Minnesota.

However, precipitation is currently forecast to be predominantly light and spotty, with the best rain chances north, and most places seeing less than one-quarter inch.

weather graphic
Rain possible Friday
Tropical Tidbits

After that rain clears out early Saturday, the rest of the weekend is likely to stay dry, with highs in the 60s and 70s.

Programming note

You can hear my live weather updates on Minnesota Public Radio at 7:48 a.m. Monday through Friday morning.

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