Weather
Northern Illinois Halloween Weather: Cold Front Brings Rain Before Oct 31
Chicago, IL – Halloween weekend across northern Illinois could begin with wet weather as …
By Evan Cross · 2026-10-29T09:06:17.216Z
Chicago, IL – Halloween weekend across northern Illinois could begin with wet weather as a cold front moves through the region, bringing an increased chance of showers Friday night into Saturday. However, improving conditions could arrive just in time for trick or treating and other outdoor Halloween celebrations.
According to the National Weather Service in Chicago, a few showers are possible Thursday, October 29, as a cold front passes through the area. A more widespread opportunity for rainfall develops Friday night and continues into Saturday, October 31.
Rain Chances Increase Ahead of Halloween
Thursday temperatures will reach between 65 and 75 degrees before cooler conditions arrive Friday, when highs are expected to range from 59 to 69 degrees.
Locations north of Interstate 80 are expected to experience the coolest conditions Friday.
Rain chances increase Friday night, with showers potentially continuing into Saturday morning and afternoon.
Saturday temperatures are forecast to reach 57 to 68 degrees, while overnight lows will range from 47 to 53 degrees.
The National Weather Service indicates that shower coverage may diminish late Saturday, potentially allowing many communities to enjoy Halloween evening activities with fewer weather interruptions.
However, the exact timing of improving conditions remains important for families planning outdoor celebrations.
What to Expect Halloween Night
Residents across Chicago, the surrounding suburbs and northern Illinois should prepare for the possibility of damp sidewalks, wet roads and lingering showers Saturday.
Families planning trick or treating may want to keep rain jackets available and check updated forecasts before heading outdoors.
Sunday, November 1, brings slightly warmer conditions, with afternoon highs ranging from 62 to 70 degrees.
Mostly cloudy skies are expected, with some lingering precipitation possible.
Daylight saving time also ends Sunday at 2 a.m., when clocks move back one hour.
Residents should continue monitoring forecast updates as Halloween approaches, particularly for changes in Saturday evening rainfall timing.