National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Springfield - Abraham Lincoln Capital Airport (KSPI)

Lat: 39.85°NLon: 89.68°WElev: 587ft.

Fair

78°F

26°C

Humidity 58%
Wind Speed W 5 mph
Barometer 30.01 in (1015.9 mb)
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 19 Jun 5:52 pm CDT
Extended Forecast for

Petersburg IL

  • Tonight

    Tonight: A 20 percent chance of showers after midnight. Mostly cloudy, with a low around 62. West wind 3 to 6 mph.

    Low: 62 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Saturday

    Saturday: Mostly sunny, with a high near 83. West northwest wind 3 to 6 mph.

    High: 83 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A chance of showers, with thunderstorms also possible after 4am. Partly cloudy, with a low around 62. Calm wind becoming east southeast around 5 mph after midnight. Chance of precipitation is 40%.

    Low: 62 °F

    Partly Cloudy
    then Chance
    Showers

  • Sunday

    Sunday: A chance of showers before 7am, then showers and possibly a thunderstorm between 7am and 1pm, then showers and thunderstorms after 1pm. High near 77. East southeast wind 8 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.

    High: 77 °F

    Showers then
    T-storms

  • Sunday Night

    Sunday Night: Showers and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Low around 60. West wind 9 to 14 mph becoming north after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 60 °F

    Showers

  • Monday

    Monday: Partly sunny, with a high near 75. North northeast wind around 11 mph, with gusts as high as 20 mph.

    High: 75 °F

    Partly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 55. Northeast wind 3 to 8 mph. Winds could gust as high as 15 mph.

    Low: 55 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 78.

    High: 78 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 59.

    Low: 59 °F

    Partly Cloudy

Detailed Forecast

Tonight
A 20 percent chance of showers after midnight. Mostly cloudy, with a low around 62. West wind 3 to 6 mph.
Saturday
Mostly sunny, with a high near 83. West northwest wind 3 to 6 mph.
Saturday Night
A chance of showers, with thunderstorms also possible after 4am. Partly cloudy, with a low around 62. Calm wind becoming east southeast around 5 mph after midnight. Chance of precipitation is 40%.
Sunday
A chance of showers before 7am, then showers and possibly a thunderstorm between 7am and 1pm, then showers and thunderstorms after 1pm. High near 77. East southeast wind 8 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Sunday Night
Showers and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Low around 60. West wind 9 to 14 mph becoming north after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Monday
Partly sunny, with a high near 75. North northeast wind around 11 mph, with gusts as high as 20 mph.
Monday Night
Partly cloudy, with a low around 55. Northeast wind 3 to 8 mph. Winds could gust as high as 15 mph.
Tuesday
Mostly sunny, with a high near 78.
Tuesday Night
Partly cloudy, with a low around 59.
Wednesday
Mostly sunny, with a high near 80.
Wednesday Night
Mostly clear, with a low around 58.
Thursday
Mostly sunny, with a high near 79.
Thursday Night
A chance of showers. Partly cloudy, with a low around 59.
Friday
Mostly sunny, with a high near 81.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Petersburg IL
 40°N 89.85°W (Elev. 551 ft)
Last Update:
6:11 pm CDT Jun 19, 2026
Forecast Valid:
6pm CDT Jun 19, 2026-6pm CDT Jun 26, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation