Chicago isn’t quite ready to give up patio weather. After Monday’s brief cooldown, temperatures are expected to climb again today, Tuesday, October 27, with upper 60s to low 70s across much of the region and cooler conditions along Lake Michigan.
Here’s what to expect before heading out for a lunch break or a stroll along the Lakefront Trail.
How warm will it get in Chicago today?
Location will make a difference. Tuesday’s highs are forecast to reach roughly 68–74°F across much of the region, while locations along the Illinois lakeshore may remain in the lower to mid-60s. If you’re spending time near the water, keep a light layer handy.
Will it rain today?
Rain isn’t expected to be a major concern Tuesday. The next meaningful opportunity for showers arrives later in the week, leaving today favorable for outdoor plans.
Will the warm weather last through Halloween weekend?
Wednesday looks warmer, with highs generally in the low to mid-70s across the region. Mild weather is expected to continue into the weekend, although Halloween could be cooler than midweek, with regional highs ranging in the 60s.
Shower chances return late Wednesday night into Thursday, with additional opportunities for rain heading into the weekend. The period is not expected to be a washout, but the timing of showers could still change. If you’re making Halloween plans for Saturday, check the forecast again closer to the weekend.
