Thursday, June 29

Positioned in the warm sector of a low pressure system with a warm front to the north and cold front to the west, Chicago will experience warm, humid, unstable conditions with periods of showers/t-storms into Friday.
Rainfall totals of 1 to 2” +.   Mostly cloudy, warm and humid with showers and t-storms likely – strong to severe storms possible with damaging winds, hail and localized flood- producing downpours. Afternoon highs in the mid 80s. Showers, t-storm downpours overnight. SW winds 10-20 mph.

Friday, June 30

Continued mostly cloudy, warm and humid with periods of showers and thunderstorms likely. Highs: 80-85. Showers ending, turning partly cloudy and cooler overnight. SW winds shift W/NW at night.

Saturday, July 1

Partly cloudy and less humid. Not as warm with high temperatures in the upper 70s to lower 80s. Clear skies overnight. West to northwest winds.

Sunday, July 2

Mostly sunny with high temperatures 80-85. Increasing high and mid-level clouds overnight. Westerly winds shift to the southeast.

Monday, July 3

Mostly cloudy and a little more humid with a good chance of showers and thunderstorms, mainly later in the afternoon into the overnight hours. High temps 80-85, but cooler along the lakefront. Southeast winds.

Tuesday, July 4

Independence Day. Glimpses of sun but clouds dominate with scattered showers and possible t-storms. Warm and humid with highs in the mid to upper 80s – cooler along the lakefront. A chance of showers/t-storms overnight.

Wednesday, July 5

Mostly cloudy, very warm and humid with a good chance of scattered showers/t-storms. Highs in the mid-80s with cooler readings at the lakefront. Showers end overnight. Light southerly winds.