Historical weather data, all-time temperature records, and monthly climate averages for East Moline, IL. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 4th in East Moline sits in that classic transition zone — average highs of 55° with lows still dipping to 34°. The date has seen wild swings over 82 years of records, from a balmy 82° in 2005 to a brutal 9° in 1975. There's about a 1-in-3 chance of rain today historically, though snow is nearly off the table at just 1%.
East Moline earns its Midwest stripes with some serious extremes — a scorching 104° in June 1988 and a jaw-dropping -33° on January 31, 2019, a spread of 137 degrees between its all-time high and low. On the wet side, a single day in September 1961 dropped 6.21 inches of rain, and a January 1971 storm buried the area under 16.4 inches of snow.
Summer is the clear sweet spot, with highs peaking around 86° the second week of July before gradually easing into a pleasant fall. If you're avoiding the cold, steer clear of January, when average highs barely crack 30°. Rain is most likely in early to mid-May, averaging over an inch for the week — keep that in mind for spring travel plans.