Historical weather data, all-time temperature records, and monthly climate averages for Crest Hill, IL. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 5 in Crest Hill typically lands right in that uncertain spring middle ground — average highs of 56° with lows still dipping to 36°. There's nearly a coin-flip chance of rain today historically (45%), and while snow is unlikely, it's not impossible: the date's coldest low hit 23° back in 1898. The warmest this date has ever gotten was a pleasant 73° in 1956, so the range is wide.
Crest Hill's weather history has some real extremes bookending it — the all-time high of 103° and the all-time low of -20° both happened in 1897, making that a wild inaugural year for the record books. The wettest single day on record dropped 6.86 inches on June 11, 1926, and an early-season November storm once buried the area under 10.5 inches of snow back in 1896.
Summer is the clear star here, with late June through early July averaging highs near 87° and peaking around the week of June 25. If you're avoiding the cold, late January through early February is the dead of winter with average highs barely cracking 30°. Rain is most likely in mid-June, averaging over an inch in a single week, so pack accordingly if you're visiting then.