Posted at 5:37 PM on August 7, 2012
by Paul Huttner
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
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.
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.
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.