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Updraft® - Minnesota Weather News
Sven Sundgaard

Heat continues with some spotty storm chances; more air quality alerts

The streak of 90s continues through Friday

tue hi 5
Forecast highs Tuesday
NOAA via pivotal weather

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Tuesday will continue our stretch of hot weather, but we’ll also see some thunder possible Tuesday night. The hot weather continues through Friday.

The heat continues through Friday

We have more air quality issues this week with lingering smoke in northern Minnesota Tuesday and ozone becoming a problem for the Twin Cities metro area due to heat and sunshine.

AQ alert 5p
Air quality alert through 3 p.m. Tuesday central and north and through 9 p.m. Thursday for the Twin Cities
Minnesota Pollution Control Agency

Check the latest air quality conditions and forecasts here:

Here are air quality forecasts for the next couple of days also:

Tuesday will also be another hot day with highs in the low to mid 90s for the Twin Cities and much of central and south central Minnesota. It will be a bit cooler along the North Shore and in northeast Minnesota. These readings are about 10 degrees above normal.

T anom TUE
Forecast temperature anomalies (difference from normal) Tuesday afternoon
NOAA via pivotal weather

Dew points will be a bit more muggy Tuesday as well, into the mid 60s.

dews TUE
Forecast dew points 7 a.m. Tuesday through 7 p.m.
College of DuPage Weather

The peak of the heat still looks to be Wednesday and Thursday when temperatures will be in the mid to upper 90s for much of southern Minnesota. Dew points will likely not reach the 70s for extended periods, meaning the heat index will stay within the 98 to 104 range.

wed h.i.
Forecast heat index late Wednesday afternoon
National Weather Service

Some thunder chances riding the ‘heat dome’

Minnesota will continue to be on the edge of the “cap” or warm air aloft that prevents storms from bubbling up. This means we’ll see some occasional spotty or isolated thunder chances. The next best chance comes late Tuesday into Tuesday night and early Wednesday.

precip TUE NT
Forecast precipitation 5 a.m. Tuesday through 8 a.m. Wednesday
College of DuPage Weather

Late Thursday and Friday may also yield some thunder chances but uncertainty remains in this hot pattern with location and timing of thunderstorm development.