Minnesota weather: Triple-digit temperatures possible on Tuesday

Tuesday's Forecast: Heat index near 110

Tuesday high temps will likely reach 100 degrees with the heat index near 115. The heat will stick around tomorrow, before a cooling trend arrives for the weekend.

MINNEAPOLIS (FOX 9) - There's a real possibility of the Twin Cities actually getting to 100 degrees on Tuesday.

The heat that's been building for several days to the south will move in on Tuesday. Temperatures will quickly climb and dew points will likely push the heat index over 110 degrees Tuesday afternoon. Heat exhaustion can occur in just 15 minutes when it's this hot. The National Weather Service has issued an excessive heat warning, effective at 11 a.m. Tuesday that goes through Wednesday evening for much of the southern half of Minnesota. More details on that here.

While a heat index of 100 degrees is pretty common for at least a few days a summer, getting the thermometer to hit triple digits is actually kind of rare. It's happened just eight times since 1990, including once last year. Even more rare is the time of year this is occurring. If the Twin Cities hit 100 degrees on Tuesday, it would be just the eighth time the Twin Cities has managed that in the month of August and the second latest in the year on record.