Weather in Mattoon, WI
Updated 2026-08-11 12:00 local time · ZIP codes 54450
Sunny
No government weather alerts were returned for this location at the latest update.
Next hours
78°1% rain84°1% rain85°1% rain86°1% rain86°1% rain86°1% rain84°2% rain
82°6% rain79°1% rain
76°4% rain75°5% rain73°6% 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 6%).
It feels like 79°F with winds near 4 mph.
78°F, 1% rain chance and 4 mph wind.
Visibility is around 10 mi; gusts may reach 13 mph.
Current temperature is 78°F, wind 4 mph, rain chance up to 6%.
UV index is 6. Sunscreen, shade and protective clothing are recommended.
Mattoon weather today
Sunny and 78°F in Mattoon, WI. Today's high is 86°F with a 17% rain chance. Winds are around 4 mph with gusts near 5 mph. Relative humidity is 47%, pressure is 29.98 inHg, and visibility is about 10 miles.
Tonight and tomorrow in Mattoon
Sunrise is at 05:53 AM and sunset is at 08:09 PM. Tomorrow's forecast calls for Sunny with a high near 87°F and a low near 60°F. The maximum rain chance is 4%.