Updated 2026-08-11 11:00 local time · ZIP codes 62466
Sunny
* WHAT...Heat index values up to 105 expected. * WHERE...Lawrence, Daviess, Greene, Knox, Martin, and Sullivan Counties. * WHEN...From noon today to 9 PM EDT this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.
86°3% rain95°3% rain96°2% rain97°2% rain97°2% rain97°1% rain95°1% rain93°1% rain89°2% rain
85°4% rain83°5% rain82°6% rain
Rain chance stays relatively low over the next 12 hours (up to 6%).
It feels like 92°F with winds near 15 mph.
85°F, 4% rain chance and 9 mph wind.
Visibility is around 10 mi; gusts may reach 23 mph.
Current temperature is 86°F, wind 15 mph, rain chance up to 6%.
UV index is 6. Sunscreen and sunglasses are sensible for longer outdoor time.
Sunny and 86°F in Sumner, IL. Today's high is 97°F with a 5% rain chance. Winds are around 15 mph with gusts near 18 mph. Relative humidity is 70%, pressure is 30.01 inHg, and visibility is about 10 miles.
Sunrise is at 06:01 AM and sunset is at 07:51 PM. Tomorrow's forecast calls for Sunny with a high near 92°F and a low near 73°F. The maximum rain chance is 69%.
