Weather
Halloween Forecast: Here's What's In Store For Chicago-Area Trick-Or-Treaters
Will it stay dry for candy seekers? Plus, a look at the warmest Halloween on record in Illinois.
Warmer, above normal temperatures continues this week, although there is a chance of scattered showers starting Thursday, according to the National Weather Service Chicago.
The high for Monday is 67 degrees for areas north of Interstate 80, and 74 degrees for areas south of I-80, according to the current forecast.
Highs in the 70s are expected all week, with the warmest temperatures expected on Thursday with a high of 79.
Find out what's happening in Across Illinoisfor free with the latest updates from Patch.
Shower chances will start to increase Thursday, and on Friday.
As for Halloween, the warm temperatures look to continue, as Oct. 31 has a high of 70 degrees. There is a chance of showers, so keep an eye on the forecast if you are trick-or-treating.
Find out what's happening in Across Illinoisfor free with the latest updates from Patch.
Halloween 2026 looks like it will be pretty mild, but most likely will not eclipse the warmest Halloween on record. The warmest Halloween recorded in Chicago was 84 degrees in 1950, according to weather service data.
Rain in the forecast is also a pretty common occurrence for Halloween, as measurable precipitation happens for 35 percent of Halloweens. The wettest Halloween on record happened in 1994, when it rained 2.26 inches, according to the weather service.
Here is a more detailed look at the weather for this week for the Joliet area, per the weather service:
MONDAY: Mostly sunny, with a high near 64. Northeast wind around 10 mph, with gusts as high as 15 mph.
MONDAY NIGHT: Partly cloudy, with a low around 48. Northeast wind 5 to 10 mph, with gusts as high as 15 mph.
TUESDAY: Partly sunny, with a high near 70. South southeast wind around 5 mph, with gusts as high as 15 mph.
TUESDAY NIGHT: Mostly cloudy, with a low around 52. South wind around 5 mph.
WEDNESDAY: Mostly sunny, with a high near 72. South southwest wind 5 to 10 mph.
WEDNESDAY NIGHT: Partly cloudy, with a low around 56.
THURSDAY: A 20 percent chance of showers before 1 p.m. Partly sunny, with a high near 75.
THURSDAY NIGHT: Mostly cloudy, with a low around 56.
FRIDAY: Partly sunny, with a high near 72.
FRIDAY NIGHT: Mostly cloudy, with a low around 55.
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