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One day of 90s? Steamy but brief heat spell likely next Tuesday.

Forecast models suggest heat index values could reach 100 degrees next Tuesday.

Heat index values Tuesday afternoon
European model forecast heat index values Tuesday at 7 p.m.
ECMWF via pivotal weather

Call it a one-hit-weather-wonder.

Next week’s heat event is starting to look like a one-day event. Ron Trenda did a nice job laying out the weekend forecast here. So let’s look ahead to next week’s brief heat surge.

Southerly winds will blow Monday pumping in a warmer and more humid air mass into Minnesota.

Highs Monday will reach the 80s across much of southern and western Minnesota. But check out the heat intensity to the southwest, where temperatures will approach 100 degrees Monday afternoon in Nebraska.

Forecast high temperatures Monday
Forecast high temperatures Monday.
NOAA

The core of that steamy air mass will slide north into Minnesota next Tuesday. Forecast models are cranking out highs into the 90s Tuesday across much of central and southern Minnesota. The European model cranks out temperatures into the mid-90s as soon as 1 p.m. Tuesday.

European model (ECMWF) temperature forecast
European model (ECMWF) temperature forecast for 1 pm Tuesday.
ECMWF via pivotal weather

Tropical, sauna-like dew point levels are in the forecast air mass for next Tuesday. Dew points may hover near 70 degrees.

European model (ECMWF) dew point forecast
European model (ECMWF) dew point forecast Tuesday.
ECMWF via pivotal weather

Combine temperatures in the mid-90s and dew points near 70 degrees and heat index values should push the 100-degree mark next Tuesday.

Heat index values Tuesday afternoon
European model forecast heat index values Tuesday at 7 pm.
ECMWF via pivotal weather

The good weather news? It looks like a cooler, drier air mass will blow into Minnesota next week. Highs should fall back into the 80s and 70s across Minnesota after Tuesday.

Stay tuned.