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

82°F

28°C

Humidity 34%
Wind Speed Vrbl 5 mph
Barometer 30.09 in (1018.6 mb)
Dewpoint 51°F (11°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 25 May 2:52 pm CDT
Extended Forecast for

Petersburg IL

  • Tonight

    Tonight: Partly cloudy, with a low around 57. Southeast wind around 6 mph becoming calm in the evening.

    Low: 57 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Increasing clouds, with a high near 82. Calm wind becoming east southeast around 6 mph in the afternoon.

    High: 82 °F

    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 61. Light east southeast wind.

    Low: 61 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Wednesday

    Wednesday: A 30 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 83. Calm wind becoming east northeast around 6 mph in the afternoon.

    High: 83 °F

    Partly Sunny
    then Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 61. East northeast wind around 5 mph becoming calm.

    Low: 61 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 84. East northeast wind 7 to 10 mph, with gusts as high as 17 mph.

    High: 84 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 59. East northeast wind 6 to 8 mph, with gusts as high as 16 mph.

    Low: 59 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 79.

    High: 79 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 57.

    Low: 57 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 57. Southeast wind around 6 mph becoming calm in the evening.
Tuesday
Increasing clouds, with a high near 82. Calm wind becoming east southeast around 6 mph in the afternoon.
Tuesday Night
A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 61. Light east southeast wind.
Wednesday
A 30 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 83. Calm wind becoming east northeast around 6 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 61. East northeast wind around 5 mph becoming calm.
Thursday
Mostly sunny, with a high near 84. East northeast wind 7 to 10 mph, with gusts as high as 17 mph.
Thursday Night
Mostly cloudy, with a low around 59. East northeast wind 6 to 8 mph, with gusts as high as 16 mph.
Friday
Partly sunny, with a high near 79.
Friday Night
Mostly cloudy, with a low around 57.
Saturday
Mostly sunny, with a high near 78.
Saturday Night
Partly cloudy, with a low around 56.
Sunday
Sunny, with a high near 79.
Sunday Night
Mostly clear, with a low around 55.
Monday
Sunny, with a high near 81.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Petersburg IL
 40.02°N 89.82°W (Elev. 600 ft)
Last Update:
1:36 pm CDT May 25, 2026
Forecast Valid:
4pm CDT May 25, 2026-6pm CDT Jun 1, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation