Historical weather data, all-time temperature records, and monthly climate averages for Miamisburg, OH. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 4th in Miamisburg sits squarely in that unpredictable stretch of Ohio spring — historically, highs average 60° but have swung from a raw 27° back in 2002 to a shirt-sleeve 76° as recently as 2021. There's a 43% chance of rain today, so keep something waterproof handy, though snow is essentially off the table at this point in the season.
Miamisburg weather doesn't mess around at the extremes — the thermometer has hit 102° in the July 2012 heat wave and plunged to -11° in January 2003, a spread of 113 degrees across the record books. The wettest single day on record dumped 3.8 inches of rain on September 27, 2002.
Summer is the clear headliner here, with highs peaking around 84–85° during the first week of July and staying there through August. If you're cold-averse, steer clear of mid-January, when average highs barely crack 34°. For rain, June is the month to watch — the week of June 11–17 is the wettest of the year, averaging nearly 1.5 inches.