Historical weather data, all-time temperature records, and monthly climate averages for Godfrey, IL. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 5th in Godfrey typically lands in that pleasant, slightly unpredictable stretch of spring — average highs of 60° with lows around 41°. The date has swung wildly over the decades, from a balmy 89° back in 1946 to a bitter 23° in 1987, so don't put the jacket away just yet. Rain is possible about one in three years, but snow is essentially off the table.
Godfrey's weather history is not for the faint of heart — this corner of Illinois has seen everything from a scorching 116° in July 1946 to a brutal -16° in January 1982, a swing of 132 degrees. April is historically the month to watch for flooding, with a single-day record of 7.7 inches of rain on April 23, 1996, and a March blizzard in 1978 that dumped 13 inches in one shot.
Godfrey earns its Midwest stripes with a full range of seasons — peak summer heat arrives mid-July with average highs of 89°, while January and February sit firmly in the 30s and low 40s. April is the wettest stretch of the year, averaging over an inch of rain in the last week of the month alone. If you're planning a visit, May through June and September through October offer the most comfortable conditions before the extremes set in.