Historical weather data, all-time temperature records, and monthly climate averages for Streator, IL. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 4th in Streator typically lands right in the swing of spring, with average highs around 58° and lows near 35°. There's a 1-in-3 chance of rain today, though snow is nearly off the table at just 3%. The date has seen wild swings over 120 years — from a balmy 81° in 2011 to a bitter 18° back in 1903.
Streator's weather has real teeth at the extremes: the thermometer has soared to 108° in July 1913 and crashed to -26° in February 1905, a range of 134 degrees. A single August day in 1910 dropped 4.52 inches of rain, and a March 1991 snowstorm buried the town under 18 inches in one shot.
Summer is the clear star here — highs peak around 87° in late July, and June through August stays firmly in the 80s. If you're cold-averse, avoid late January through early February, when average highs barely crack 31°. July is also the wettest stretch of the year, averaging nearly an inch of precipitation per week.