Historical weather data, all-time temperature records, and monthly climate averages for Shiloh, IL. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 5 in Shiloh runs mild on average, with a typical high of 63° and low of 40° across 77 years of records. The date has seen real extremes, though — from a balmy 88° in 1988 to a bitter 24° back in 1970. There's about a 1-in-3 chance of rain today, so keep an umbrella handy.
Shiloh's weather has some serious range baked into its history. The thermometer has swung from a scorching 110° on July 14, 1954, all the way down to -27° on January 17, 1977 — a spread of 137 degrees. On the wet side, a single day in June 1957 dropped 8.15 inches of rain, and a January 1982 storm buried the area under 14.8 inches of snow.
Summer is Shiloh's defining season, with highs averaging 90° in the warmest week of mid-July and staying in the upper 80s through August. January is the place to avoid if you hate the cold, with average highs barely reaching 39°. Rain peaks in late June, making early summer the wettest stretch of the year.