Historical weather data, all-time temperature records, and monthly climate averages for Marion, OH. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 5 in Marion sits in that classic Ohio spring no-man's-land — the average high is 56° but the date has seen everything from 79° (1986) to a brutal 14° low (1995). There's nearly a coin-flip chance of precipitation today, though snow is unlikely at just 4%.
Marion's weather has real teeth on both ends: the thermometer has touched 105° in the summer of 1936 and plunged to -23° in January 1994, a swing of 128 degrees. A single June day in 1939 dumped 5.4 inches of rain, and December 2004 buried the city under 14 inches of snow in one storm.
Summer is the sweet spot, with highs peaking around 84-85° in mid-July — ideal if you can handle the wettest stretch of the year, which arrives late June through early July averaging over an inch of rain per week. If you're cold-averse, avoid mid-January, when average highs barely crack 33°.