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Current conditions at

Springfield - Abraham Lincoln Capital Airport (KSPI)

Lat: 39.85°NLon: 89.68°WElev: 587ft.

Fair

78°F

26°C

Humidity 42%
Wind Speed S 9 mph
Barometer 30.08 in (1018.3 mb)
Dewpoint 53°F (12°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 10 Oct 12:52 pm CDT
Extended Forecast for

Petersburg IL

  • This Afternoon

    This Afternoon: Mostly cloudy, with a high near 83. Southeast wind around 9 mph, with gusts as high as 16 mph.

    High: 83 °F

    Mostly Cloudy

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 52. Southeast wind 5 to 7 mph becoming calm after midnight.

    Low: 52 °F

    Decreasing
    Clouds

  • Sunday

    Sunday: Sunny, with a high near 85. Light south southwest wind.

    High: 85 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 64. South wind 3 to 7 mph.

    Low: 64 °F

    Partly Cloudy

  • Columbus Day

    Columbus Day: Sunny, with a high near 91. Southwest wind 7 to 13 mph, with gusts as high as 21 mph.

    High: 91 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 71. South southwest wind 9 to 11 mph, with gusts as high as 21 mph.

    Low: 71 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 87. West southwest wind 8 to 11 mph, with gusts as high as 21 mph.

    High: 87 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A 50 percent chance of showers after 1am. Mostly clear, with a low around 63.

    Low: 63 °F

    Mostly Clear
    then Chance
    Showers

  • Wednesday

    Wednesday: Showers likely. Partly sunny, with a high near 78. Chance of precipitation is 70%.

    High: 78 °F

    Showers
    Likely

Detailed Forecast

This Afternoon
Mostly cloudy, with a high near 83. Southeast wind around 9 mph, with gusts as high as 16 mph.
Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 52. Southeast wind 5 to 7 mph becoming calm after midnight.
Sunday
Sunny, with a high near 85. Light south southwest wind.
Sunday Night
Partly cloudy, with a low around 64. South wind 3 to 7 mph.
Columbus Day
Sunny, with a high near 91. Southwest wind 7 to 13 mph, with gusts as high as 21 mph.
Monday Night
Clear, with a low around 71. South southwest wind 9 to 11 mph, with gusts as high as 21 mph.
Tuesday
Sunny, with a high near 87. West southwest wind 8 to 11 mph, with gusts as high as 21 mph.
Tuesday Night
A 50 percent chance of showers after 1am. Mostly clear, with a low around 63.
Wednesday
Showers likely. Partly sunny, with a high near 78. Chance of precipitation is 70%.
Wednesday Night
Showers likely. Mostly cloudy, with a low around 59. Chance of precipitation is 60%.
Thursday
Showers likely. Mostly cloudy, with a high near 74.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 52.
Friday
Partly sunny, with a high near 68.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Petersburg IL
 40.02°N 89.85°W (Elev. 551 ft)
Last Update:
1:21 pm CDT Oct 10, 2026
Forecast Valid:
1pm CDT Oct 10, 2026-6pm CDT Oct 16, 2026
 
Forecast Discussion
 
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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