Historical weather data, all-time temperature records, and monthly climate averages for Bluffton, IN. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 5 in Bluffton sits squarely in transition territory — expect a high around 53° and a low near 33°, with nearly a coin-flip chance of precipitation. The date has seen wild swings, from a balmy 78° in 1997 to a brutal 16° low in 1995, so don't put the layers away just yet.
Bluffton plays for keeps on both ends of the thermometer — 104° in July 1980 and -24° in January 1985 represent a 128-degree spread between its all-time extremes. A single July day in 1998 dropped 5.37 inches of rain, and the Blizzard of '78 left 11.6 inches of snow in one shot.
Summer is the sweet spot, with highs peaking around 83-85° in mid-July, while mid-January bottoms out at a frigid average high of just 30°. If you're watching for rain, June is your riskiest month, with the wettest stretch running June 11-17. Spring and fall offer relief but come with unpredictability, as April's 27-degree record swing proves.