Historical weather data, all-time temperature records, and monthly climate averages for Wheeling, IL. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 5 in Wheeling lands right in the middle of that unpredictable spring stretch — expect a high near 54° and a low around 35°, with a 38% chance of rain. The date has seen some wild swings over the years, from a balmy 76° in 2005 to a bitter 21° low back in 2002.
Wheeling's weather doesn't mess around at the extremes — the thermometer has touched 104° in July 2012 and plunged to -21° in January 2019, a 125-degree range that captures the full fury of Chicagoland's climate. A single June day in 2013 dumped 4.53 inches of rain, a reminder that summer storms here can be serious.
Summer is the sweet spot, with highs peaking around 84-85° in mid-July and comfortable warmth running through August and September. If you're cold-averse, avoid mid-January when average highs barely clear 30°. Late June through early July is the wettest stretch of the year, averaging over an inch of precipitation per week.