Taste of Fall: Cooler & wetter days ahead; Patchy frost up north?

44 degrees at International Falls Tuesday morning

Frost? Patchy frost possible in northeast Minnesota by this weekend

70s likely for the Twin Cities and southern Minnesota Thursday - Sunday

Low-mid 50s for lows in the metro by Friday morning?

June 13th - last time we recorded a low of 55 or cooler at MSP Airport

-5 to -10 degrees temps running below average in Minnesota later this week & weekend

No 90s in sight for MSP for next 1-2 weeks?

"Northwest Flow" delivers a series of cool fronts next 1-2 weeks

Lake water temps likely past peak in Minnesota this summer

Source: Twin Cities NWS

Pattern Change: Cooler than average air ahead

Get ready for a change in air masses in Minnesota.

A cool front will push south Wednesday. Scattered showers & T-Storms will break out and linger into early Thursday. Overall rainfall totals look light, with most areas in southern Minnesota squeaking out under .25". Some spots from near Brainerd to Hinckley and Duluth may pick up 1" or more under heavier showers & isolated T-Storms.

Source: NOAA & wxcaster.com

As the Canadian high pressure settles in, a persistent cool northeast breeze will funnel in cooler air into Minnesota through Saturday. Highs will runs in the 70s, and lows will dip into the mid 50s for the first time since June. The last time the low hit 55 in the metro was June 13th.

Source: Iowa State University

Frost is possible up north by Friday & Saturday morning in some of the cooler nooks & crannies.

With the trend toward cooler weather the next 1-2 weeks, lake water temps have likely already peaked in Minnesota this summer. Many lakes near the metro reached the upper 80s near the surface in late July this year. That's a good 5+ degrees above average.

I don't see a return to searing summer heat and humidity any time soon. We can finally give the AC a long and well deserved rest.

PH