Historical weather data, all-time temperature records, and monthly climate averages for Frankfort, IN. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 5th in Frankfort runs mild but unpredictable — expect a high near 57° and a low around 36°, with nearly a coin-flip chance of rain at 44%. The date has swung from a balmy 83° back in 1988 all the way down to a brutal 16° in 1975, so keep a layer handy.
Frankfort's weather has real teeth at the extremes: the thermometer hit a scorching 108° in July 1936 and plunged to -26° on Christmas Eve 1983, a swing of 134 degrees. A single June day in 1978 dumped 5.1 inches of rain, and December 1973 buried the city under 15.5 inches of snow in one storm.
Summer is the main event, with highs peaking around 85-86° in mid-July, while mid-January bottoms out at a frigid 34°. June is the wettest stretch of the year, so plan outdoor trips for August or September when rain eases and temperatures are still warm. Winter through early spring stays cold and raw, with highs not reliably climbing above 60° until April.