Lows In The 40s & 100% Sunshine!

***Watch WISN 12 News for Milwaukee’s most accurate forecast!***

Thank you for stopping by the Weather Watch 12 Blog!  If you missed yesterday’s blog showing pictures of VOLLEYBALL size hail, make sure to check it out below this entry.

Today we focus on the refreshing airmass that slid into the area early Wednesday.  Dew points dropped into the low 50s, and air temperatures will be a touch below average the next several days.  Daytime highs will be in the 70s, with nighttime lows in the 40s and 50s.  Yes the 40s! 

Overnight lows in the 40s are not unheard of in August, but only once in the last 5 years has Milwaukee seen an August with lows in the 40s…and that was last year.  On August 31, 2009 we closed the month with a low of 46 at Milwaukee’s Mitchell Airport.

With clear skies and winds easing up tonight, lows will drop into the 40s for inland locations.  Areas closer to Lake Michigan will stay in the 50s.  Below is the temperature forecast for 7 a.m. Thursday morning.  This forecast is from the NAM computer model.  Notice the light green shade over southern Wisconsin, this represents temperatures in the 45-50 degree range.


The cool, comfortable and sunny weather for the next few days is courtesy of high pressure.  Remember high pressure creates a sinking motion in the atmosphere, so this should translate into lots of sunshine. 

On Thursday afternoon, the high should be right on top of Wisconsin.  This should lead to lighter winds and also nearly 100% sunshine!  Below is a forecast satellite map for Thursday afternoon.  The forecast is from our in-house computer model.  The high pressure area is labeled ‘H’.

The dry and sunny days should continue through this weekend.  Highs will gradually climb back into the 80s by Saturday.  Warmer and more humid weather will surge back from Sunday-Tuesday.  Until then enjoy what should be a quick Fall preview!

Remember, new forecast models arrives about every 3-6 hours, and the best way to see the latest data is to tune into WISN 12 News.

Have a great day!

Jeremy Nelson


4 Responses

  1. Fall is my favorite time of year I LOVE highs in the 60’s/70’s and lows 45-50, and lots of sun. To bad the humidity returns this weekend. Jeremy is there such a thing as a hot and dry summer in Wisconsin, or is the heat always accompinied by humidity?

    • Bryan, here in Wisconsin it can be hot and dry. These type of summers usually occur during droughts. This summer we had too much rain which led to increased soil moisture and very lush vegetation. All factors which can lead to higher dew points.


  2. On the downside, the cooler temps in the evenings and early mornings have brought out the sweatshirts. On the upside, the cooler evenings and mornings have reduced mosquito activity. Looking forward to more heat this weekend, it’s too early for Fall weather.

    • Cliff,

      The next 5-6 days look warm. The humidity will at least stay in check until Sunday. The lower number of mosquitos is nice!


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