Historical weather data, all-time temperature records, and monthly climate averages for Richton Park, IL. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 4th in Richton Park tends to feel more like late winter than spring, with an average high of just 55° and lows dipping to 34°. The date has seen wild swings over the years though — a balmy 80° in 2012 and a brutal 18° low back in 1982. There's nearly a coin-flip chance of rain today historically, so keep an umbrella handy.
Richton Park has seen some genuinely extreme weather in its recorded history, from a scorching 103° in August 1988 to a bone-chilling -27° in January 1985 — a swing of 130 degrees. A single day in July 1996 dumped 6.55 inches of rain, and a February 2011 snowstorm buried the area under 19 inches in one shot.
Summers are warm and humid, peaking mid-July with average highs around 85°, while winters are genuinely cold — January and February highs barely crack the 30s. If you're planning a visit, May through September is your window for comfortable outdoor weather, with the wettest stretch also landing in mid-July. Winter travelers should come prepared for real cold.