National Weather Service Forecast for: Springfield IL
Issued by: National Weather Service Lincoln, IL
Updated: 2:01 am CDT Jun 30, 2026
 
Overnight

Overnight: Mostly clear, with a low around 76. South southwest wind around 8 mph, with gusts as high as 17 mph.
Mostly Clear
 Tuesday

Tuesday: Mostly sunny, with a high near 94. Heat index values as high as 106. South southwest wind 7 to 15 mph, with gusts as high as 23 mph.
Mostly Sunny
 Tuesday
Night
Tuesday Night: Clear, with a low around 76. South wind 7 to 10 mph, with gusts as high as 16 mph.
Clear
 Wednesday

Wednesday: Sunny and hot, with a high near 95. Heat index values as high as 106. South southwest wind 6 to 10 mph, with gusts as high as 18 mph.
Hot
 Wednesday
Night
Wednesday Night: Clear, with a low around 77. South wind 6 to 9 mph, with gusts as high as 17 mph.
Clear
 Thursday

Thursday: Sunny and hot, with a high near 95. South southwest wind 6 to 8 mph, with gusts as high as 15 mph.
Hot
 Thursday
Night
Thursday Night: Partly cloudy, with a low around 77. South wind 5 to 7 mph.
Partly Cloudy
 Friday

Friday: A 30 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 95.
Chance
T-storms
 Friday
Night
Friday Night: Partly cloudy, with a low around 75.
Partly Cloudy
Lo 76 °F Hi 94 °F Lo 76 °F Hi 95 °F Lo 77 °F Hi 95 °F Lo 77 °F Hi 95 °F Lo 75 °F

Hazardous Weather Outlook
Extreme Heat Warning
 

Overnight
 
 Mostly clear, with a low around 76. South southwest wind around 8 mph, with gusts as high as 17 mph.
Tuesday
 
 Mostly sunny, with a high near 94. Heat index values as high as 106. South southwest wind 7 to 15 mph, with gusts as high as 23 mph.
Tuesday Night
 
 Clear, with a low around 76. South wind 7 to 10 mph, with gusts as high as 16 mph.
Wednesday
 
 Sunny and hot, with a high near 95. Heat index values as high as 106. South southwest wind 6 to 10 mph, with gusts as high as 18 mph.
Wednesday Night
 
 Clear, with a low around 77. South wind 6 to 9 mph, with gusts as high as 17 mph.
Thursday
 
 Sunny and hot, with a high near 95. South southwest wind 6 to 8 mph, with gusts as high as 15 mph.
Thursday Night
 
 Partly cloudy, with a low around 77. South wind 5 to 7 mph.
Friday
 
 A 30 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 95.
Friday Night
 
 Partly cloudy, with a low around 75.
Independence Day
 
 A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 94.
Saturday Night
 
 A chance of showers and thunderstorms. Partly cloudy, with a low around 73.
Sunday
 
 A chance of showers and thunderstorms. Mostly sunny, with a high near 91.
Sunday Night
 
 Partly cloudy, with a low around 71.
Monday
 
 Mostly sunny, with a high near 89.

 

Forecast from NOAA-NWS for Springfield IL.