National Weather Service Forecast for: Springfield IL
Issued by: National Weather Service Lincoln, IL
Updated: 6:56 pm CDT Jun 18, 2026
 
Tonight

Tonight: Mostly clear, with a low around 57. Calm wind.
Mostly Clear

 Juneteenth

Juneteenth: Sunny, with a high near 81. Calm wind becoming west northwest around 6 mph in the morning.
Sunny

 Friday
Night
Friday Night: Partly cloudy, with a low around 63. Light and variable wind.
Partly Cloudy

 Saturday

Saturday: Mostly sunny, with a high near 84. West wind 3 to 5 mph.
Mostly Sunny

 Saturday
Night
Saturday Night: A 30 percent chance of showers after 1am. Partly cloudy, with a low around 65. Light and variable wind becoming east southeast around 6 mph after midnight.
Partly Cloudy
then Chance
Showers
 Sunday

Sunday: Showers likely, then showers and possibly a thunderstorm after 1pm. Some of the storms could produce heavy rainfall. High near 80. East southeast wind 8 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.
Heavy Rain

 Sunday
Night
Sunday Night: Showers and possibly a thunderstorm before 1am, then a chance of showers. Low around 63. East southeast wind around 13 mph becoming north after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 80%. New rainfall amounts between three quarters and one inch possible.
Showers

 Monday

Monday: Partly sunny, with a high near 77.
Partly Sunny

 Monday
Night
Monday Night: Partly cloudy, with a low around 58.
Partly Cloudy
Lo 57 °F Hi 81 °F Lo 63 °F Hi 84 °F Lo 65 °F Hi 80 °F Lo 63 °F Hi 77 °F Lo 58 °F

 

Tonight
 
 Mostly clear, with a low around 57. Calm wind.
Juneteenth
 
 Sunny, with a high near 81. Calm wind becoming west northwest around 6 mph in the morning.
Friday Night
 
 Partly cloudy, with a low around 63. Light and variable wind.
Saturday
 
 Mostly sunny, with a high near 84. West wind 3 to 5 mph.
Saturday Night
 
 A 30 percent chance of showers after 1am. Partly cloudy, with a low around 65. Light and variable wind becoming east southeast around 6 mph after midnight.
Sunday
 
 Showers likely, then showers and possibly a thunderstorm after 1pm. Some of the storms could produce heavy rainfall. High near 80. East southeast wind 8 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.
Sunday Night
 
 Showers and possibly a thunderstorm before 1am, then a chance of showers. Low around 63. East southeast wind around 13 mph becoming north after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 80%. New rainfall amounts between three quarters and one inch possible.
Monday
 
 Partly sunny, with a high near 77.
Monday Night
 
 Partly cloudy, with a low around 58.
Tuesday
 
 Mostly sunny, with a high near 79.
Tuesday Night
 
 Partly cloudy, with a low around 61.
Wednesday
 
 Mostly sunny, with a high near 81.
Wednesday Night
 
 Mostly clear, with a low around 61.
Thursday
 
 Mostly sunny, with a high near 81.

 

Forecast from NOAA-NWS for Springfield IL.