Heat wave roasts Twin Cities: Record highs possible again Wednesday

Wednesday is expected to be another day of potentially record heat, with high humidity and isolated storms possible, especially north.

Wednesday’s forecast

Minnesota is off to another warm and muggy start Wednesday, with most of the state starting the day in the 60s or 70s. Dew points are also elevated and predominantly in the 60s, and that high moisture content in the air is making for the muggy morning and will keep the day sticky.

Our heat wave continues with highs for almost the entire state in the 90s.

These temperatures could set record highs again in some spots. For example, the June 9 record for the Twin Cities is 95, which is also the expected high Wednesday. Because of the heat and humidity, the Twin Cities and surrounding counties continue to be under a heat advisory through Thursday evening.

The one “cooler” spot is near Lake Superior, where thanks to the influence of the lake, there will be a few 70s.

Skies stay mostly sunny to party cloudy again, but a weak boundary of lower pressure is keeping occasional showers and storms in the forecast.

There are already a couple isolated storms in northwestern Minnesota as of 7 a.m. During the afternoon especially, some spotty showers of storms could pop up. 

The best chance for any activity remains in northern Minnesota, and northwest and north central Minnesota may see isolated severe storms, with high winds and large hail as the primary risks.

The heat continues Thursday, then a storm brings more rain and slightly cooler weather by late week. That extended forecast will be updated around 9 a.m.

Programming note

You can hear my live weather updates on Minnesota Public Radio at 7:49 a.m. Monday through Friday morning.