CHICAGO — Hazy sunshine and unseasonably warm Tuesday. Winds: SSW 5-10 mph. Air quality is Moderate for Chicagoland. High 88/81 lakeshore.

Partly cloudy and mild tonight. Winds: SSE 0-5 mph. Low 68.

WEDNESDAY, OCTOBER 4
HIGH: 83 LOW: 65
Partly cloudy to cloudy, breezy and warm. Growing prospects for a few scattered showers or thunderstorms impacting 20-30% of the area in the afternoon. Better coverage showers and thunderstorms at night. High Wednesday 83.

THURSDAY, OCTOBER 5
HIGH: 71 LOW: 53
Opens cloudy—some showers possible. The breaks for mixed sun, breezy and not as warm. High 71.

FRIDAY, OCTOBER 6
HIGH: 60 LOW: 41
Turning showery and markedly cooler with a good deal of cloudiness with gusty NW winds. High 60.

SATURDAY, OCTOBER 7
HIGH: 56 LOW: 41
Partly cloudy to cloudy, windy and much cooler. The coolest daytime highs in the 5 months since early last May. A shower or two can’t be ruled out. High 56.

SUNDAY, OCTOBER 8
HIGH: 59 LOW: 45
Mixed sun—but clouds build and a shower or two is possible in the afternoon or evening. High 59.

MONDAY, OCTOBER 9
HIGH: 64 LOW: 48
Partly cloudy and breezy. Slight chance of a shower. High 64.