Summery Tuesday; smoky skies from western wildfires continue this week
Cold front trims temperatures starting Wednesday.
![A Thick elevated smoke layer above the Twin Cities dimmed the sunshine Monday.](https://img.apmcdn.org/4cc20c760ec1ae109d465e7a3030aac5f0ebf71f/uncropped/50cfa8-20200914-thick-elevated-smoke-layer-above-the-twin-cities-monday.jpg)
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Our balmy summer breeze continues through Tuesday.
But our trademark blue Minnesota September sky is a whiter shade of pale this week. Massive smoke plumes from nearly a hundred western wildfires now stretch from coast to coast across the U.S. Some of the thickest smoke plumes aloft blew right over Minnesota Monday.
![NOAA HRRR model vertically integrated smoke product](https://img.apmcdn.org/cf76b58b37f948a349d7a36dc191706fbd7addf7/uncropped/7dd3a7-20200914-noaa-hrrr-model-vertically-integrated-smoke-product.png)
The mid and upper-level wind trajectory this week blows from the fire zones across the northern U.S. into Minnesota.
![Upper wind forecast for Tuesday](https://img.apmcdn.org/0b966c825238a7af071b226249024a816a3c7763/uncropped/52b9f7-20200914-upper-wind-forecast-for-tuesday.png)
Expect to see more white instead of blue sky days and faded sunsets this week.
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Summery Tuesday
Tuesday brings warm breezes to much of Minnesota once again. Highs reach the 80s across most of southern Minnesota.
![Forecast high temperatures Tuesday](https://img.apmcdn.org/fac110487cf183a1a9c0e2b44d4708f6abbf3521/uncropped/75ad7e-20200914-forecast-high-temperatures-tuesday.png)
Cold front Wednesday
Colder air surges south once again starting Wednesday. Highs in the chilly 50s cover most of Minnesota Thursday and Friday.
![Forecast high temperatures Thursday](https://img.apmcdn.org/ef82c4d01ca598540ac1e5436b3554cbeb91eec1/uncropped/13d926-20200914-forecast-high-temperatures-thursday.gif)
Freezing temperatures will occur once again late this week across northern Minnesota.
![Forecast low temperatures Thursday morning](https://img.apmcdn.org/209d8477092e32b87cfcfbc00e279524915ffb73/uncropped/7c10cf-20200914-forecast-low-temperatures-thursday-morning.gif)
Highs will reach the 70s again this weekend across southern Minnesota.