Evansville, Indiana – Temperatures will climb into the upper 80s by Thursday afternoon, bringing a summerlike stretch of heat that will quickly dry out southern Indiana heading into the weekend.
According to the National Weather Service and NOAA’s Climate Prediction Center, southern Indiana is in an 80 to 90 percent probability zone for above-normal temperatures from April 16 through April 20. A strong heat dome over the Ohio Valley will suppress rainfall and allow temperatures to rise steadily through the period.
In Evansville and across Vanderburgh, Warrick, and Gibson counties, highs are expected to reach 86 to 89°F between 2 p.m. and 6 p.m., with overnight lows holding in the mid to upper 60s. Along the I-64 and U.S. 41 corridors, dry air and persistent sunshine will accelerate the drying of vegetation, increasing wildfire risk in rural and wooded areas.
Bloomington and areas farther east will see highs in the mid to upper 80s, while Louisville-adjacent communities across the Ohio River may approach 90°F during peak afternoon heating. Despite the warmth, humidity levels will remain moderate, allowing fuels to dry quickly.
The precipitation outlook shows a 33 to 50 percent chance of below-normal rainfall early in this stretch, though a transition toward a wetter pattern may begin late in the period as a storm track develops across the Midwest.
Residents should avoid outdoor burning, stay hydrated, and limit strenuous activity during peak afternoon heat. Drivers should monitor vehicle temperatures and avoid parking on dry grass.
The most intense heat is expected April 18 through April 20, when a “much above normal” zone expands into the Ohio Valley. Additional advisories are possible as conditions shift toward a more active weather pattern early next week.
