Dew points in the 70s will arrive in Chicago Monday as a saunalike air mass that has had
the Plains baking for days makes inroads into the Midwest. Highs will flirt with the
90-degree mark from the city northward as clouds and thunderstorms keep the mercury
in check, but readings should climb to the middle 90s in the far south suburbs. Heat
advisories are posted for areas south of Interstate 80 where readings in the middle and
upper 90s coupled with dew points in the 70s will produce heat indexes as high as 105
degrees.
The muggy conditions should be nothing more than a memory by Wednesday as a
refreshingly cooler and drier air mass moves in for an extended stay.
TROPICAL STORM EDOUARD DEVELOPS
Low pressure in the western Gulf of Mexico quickly intensified into Tropical Storm
Edouard Sunday afternoon with an expected Texas landfall early Tuesday, possibly as a
hurricane.
--By Steve Kahn, WGN Weather Center Meteorologist
