CHICAGO — Temptures in the low 80s Monday with partly cloudy conditions. Winds: ENE 5-10 G15, wide temp range. High: 82/77.

Partly cloudy tonight. Winds: NE 5-10. Low: 69.

Tuesday Forecast: Mainly sunny, cooler lakeside. Winds: ESE 5-10. High: 91.

Wednesday and Thursday Forecast: An Excessive Heat Watch has been issued for Wednesday and Thursday across Chicago as temperatures near 100 degrees with hot and humid conditions.