Chicago, Illinois – Cool, refreshing nights will settle across Chicago and northern Illinois, with temperatures tumbling into the 50s through the weekend—an unusual dip for early August. Hazy skies and periodic smoke from distant wildfires are expected to linger, limiting visibility and impacting air quality for outdoor plans.
According to the National Weather Service in Chicago, temperatures will gradually rise each afternoon, reaching the low 80s by Sunday and climbing a bit higher each day into midweek. Overnight, however, much of the metro area and suburbs can expect lows between 53 and 65 degrees, especially away from the lakefront where readings may stay milder.
On Sunday, expect smoke and haze, especially during the morning and evening. Skies clear slightly by Monday, but smoky conditions could redevelop, particularly for neighborhoods south of I-80 on Tuesday. Tuesday also brings a slight chance of isolated thunderstorms, but rain is expected to be sparse.
Residents are urged to limit outdoor activity during periods of thick haze and check local air quality alerts. Keep windows closed at night if smoke is present, and take extra precautions if you have breathing issues.
The warming trend looks to continue through Wednesday, but overnight temperatures in the 50s are likely through early week. Additional advisories may be issued if smoke concentrations increase or storms become more likely.
Five Day Forecast for Chicago, Illinois:
- Sunday: Hazy, smoky, highs 78–83°F, lows 56–66°F
- Monday: Partly cloudy, highs 80–84°F, lows 61–68°F
- Tuesday: Mostly sunny, slight thunderstorm chance (mainly south), highs 82–85°F, lows 64–69°F
- Wednesday: Partly cloudy, highs 83–88°F, lows 64–71°F
- Thursday: Mostly sunny and warmer, highs near 88°F, lows in the upper 60s
