Weather in Mechanicsburg, IL
Updated 2026-08-11 10:15 local time · ZIP codes 62545
Sunny
No government weather alerts were returned for this location at the latest update.
Next hours
86°4% rain95°3% rain95°3% rain96°2% rain96°2% rain97°2% rain97°1% rain94°1% rain93°2% rain89°2% rain
85°3% rain83°4% rain3-day weather forecast
Weather details
Sunrise, sunset and moon
Weather insights for today
Rain chance stays relatively low over the next 12 hours (up to 4%).
It feels like 94°F with winds near 14 mph.
85°F, 3% rain chance and 4 mph wind.
Visibility is around 6 mi; gusts may reach 23 mph.
Current temperature is 86°F, wind 14 mph, rain chance up to 4%.
UV index is 3.
Mechanicsburg weather today
Sunny and 86°F in Mechanicsburg, IL. Today's high is 97°F with a 5% rain chance. Winds are around 14 mph with gusts near 18 mph. Relative humidity is 65%, pressure is 29.91 inHg, and visibility is about 6 miles.
Tonight and tomorrow in Mechanicsburg
Sunrise is at 06:06 AM and sunset is at 07:59 PM. Tomorrow's forecast calls for Sunny with a high near 83°F and a low near 73°F. The maximum rain chance is 70%.