National Weather Service Forecast for: Champaign IL
Issued by: National Weather Service Lincoln, IL
Updated: 1:56 am CDT Aug 26, 2026
 
Overnight

Overnight: Mostly cloudy, with a low around 64. South wind 3 to 5 mph.
Mostly Cloudy

Wednesday

Wednesday: A 40 percent chance of showers and thunderstorms, mainly after 3pm.  Mostly sunny, with a high near 85. South southwest wind 5 to 10 mph, with gusts as high as 17 mph.
Mostly Sunny
then Chance
T-storms
Wednesday
Night
Wednesday Night: A 30 percent chance of showers and thunderstorms before 7pm.  Mostly clear, with a low around 64. West northwest wind 3 to 7 mph.
Chance
T-storms then
Mostly Clear
Thursday

Thursday: Sunny, with a high near 82. North northwest wind 3 to 7 mph.
Sunny

Thursday
Night
Thursday Night: Mostly clear, with a low around 61. North northwest wind around 5 mph becoming calm  after midnight.
Mostly Clear

Friday

Friday: Sunny, with a high near 81. Northeast wind 3 to 5 mph.
Sunny

Friday
Night
Friday Night: Mostly clear, with a low around 59. Light east northeast wind.
Mostly Clear

Saturday

Saturday: Mostly sunny, with a high near 83.
Mostly Sunny

Saturday
Night
Saturday Night: Partly cloudy, with a low around 64.
Partly Cloudy

Lo 64 °F Hi 85 °F Lo 64 °F Hi 82 °F Lo 61 °F Hi 81 °F Lo 59 °F Hi 83 °F Lo 64 °F

Hazardous Weather Outlook
 

Overnight
 
Mostly cloudy, with a low around 64. South wind 3 to 5 mph.
Wednesday
 
A 40 percent chance of showers and thunderstorms, mainly after 3pm. Mostly sunny, with a high near 85. South southwest wind 5 to 10 mph, with gusts as high as 17 mph.
Wednesday Night
 
A 30 percent chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 64. West northwest wind 3 to 7 mph.
Thursday
 
Sunny, with a high near 82. North northwest wind 3 to 7 mph.
Thursday Night
 
Mostly clear, with a low around 61. North northwest wind around 5 mph becoming calm after midnight.
Friday
 
Sunny, with a high near 81. Northeast wind 3 to 5 mph.
Friday Night
 
Mostly clear, with a low around 59. Light east northeast wind.
Saturday
 
Mostly sunny, with a high near 83.
Saturday Night
 
Partly cloudy, with a low around 64.
Sunday
 
Mostly sunny, with a high near 87.
Sunday Night
 
Partly cloudy, with a low around 70.
Monday
 
Mostly sunny, with a high near 90.
Monday Night
 
Partly cloudy, with a low around 72.
Tuesday
 
Mostly sunny, with a high near 89.

 

Forecast from NOAA-NWS for Champaign IL.