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

Hazardous Weather Conditions

Current conditions at

Springfield - Abraham Lincoln Capital Airport (KSPI)

Lat: 39.85°NLon: 89.68°WElev: 587ft.

Fog/Mist

50°F

10°C

Humidity 96%
Wind Speed Calm
Barometer 29.98 in (1015.5 mb)
Dewpoint 49°F (9°C)
Visibility 1.50 mi
Last update 5 Mar 12:52 pm CST
Extended Forecast for

Petersburg IL

  • This Afternoon

    This Afternoon: Mostly cloudy, with a high near 60. West southwest wind 3 to 5 mph.

    High: 60 °F

    Mostly Cloudy

  • Tonight

    Tonight: A chance of showers, with thunderstorms also possible after 3am. Widespread fog, mainly between 9pm and midnight. Otherwise, mostly cloudy, with a low around 50. Light south wind becoming south southeast 5 to 9 mph in the evening. Winds could gust as high as 18 mph. Chance of precipitation is 50%.

    Low: 50 °F

    Fog then
    Chance
    Showers and
    Areas Fog

  • Friday

    Friday: A chance of showers and thunderstorms before noon, then a slight chance of showers between noon and 5pm. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 77. South wind 10 to 18 mph, with gusts as high as 31 mph. Chance of precipitation is 50%.

    High: 77 °F

    Chance
    T-storms and
    Patchy Fog
    then Slight
    Chance
    Showers

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm, mainly after midnight. Low around 55. South wind 13 to 17 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 55 °F

    Chance
    Showers then
    Showers

  • Saturday

    Saturday: A 40 percent chance of showers before noon. Cloudy, then gradually becoming mostly sunny, with a high near 65. South southwest wind 11 to 15 mph becoming west northwest in the afternoon. Winds could gust as high as 26 mph.

    High: 65 °F

    Chance
    Showers then
    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 35. West northwest wind 5 to 9 mph, with gusts as high as 17 mph.

    Low: 35 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 64. Southwest wind 6 to 13 mph, with gusts as high as 21 mph.

    High: 64 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 47.

    Low: 47 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 75.

    High: 75 °F

    Sunny

Detailed Forecast

This Afternoon
Mostly cloudy, with a high near 60. West southwest wind 3 to 5 mph.
Tonight
A chance of showers, with thunderstorms also possible after 3am. Widespread fog, mainly between 9pm and midnight. Otherwise, mostly cloudy, with a low around 50. Light south wind becoming south southeast 5 to 9 mph in the evening. Winds could gust as high as 18 mph. Chance of precipitation is 50%.
Friday
A chance of showers and thunderstorms before noon, then a slight chance of showers between noon and 5pm. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 77. South wind 10 to 18 mph, with gusts as high as 31 mph. Chance of precipitation is 50%.
Friday Night
Showers and possibly a thunderstorm, mainly after midnight. Low around 55. South wind 13 to 17 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday
A 40 percent chance of showers before noon. Cloudy, then gradually becoming mostly sunny, with a high near 65. South southwest wind 11 to 15 mph becoming west northwest in the afternoon. Winds could gust as high as 26 mph.
Saturday Night
Mostly clear, with a low around 35. West northwest wind 5 to 9 mph, with gusts as high as 17 mph.
Sunday
Sunny, with a high near 64. Southwest wind 6 to 13 mph, with gusts as high as 21 mph.
Sunday Night
Clear, with a low around 47.
Monday
Sunny, with a high near 75.
Monday Night
A 30 percent chance of showers after midnight. Partly cloudy, with a low around 56.
Tuesday
Showers and possibly a thunderstorm. Partly sunny, with a high near 77.
Tuesday Night
Showers. Mostly cloudy, with a low around 49.
Wednesday
Showers likely. Mostly cloudy, with a high near 62.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Petersburg IL
 40°N 89.82°W (Elev. 541 ft)
Last Update:
1:16 pm CST Mar 5, 2026
Forecast Valid:
1pm CST Mar 5, 2026-6pm CDT Mar 11, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation