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Hazardous Weather Conditions

Current conditions at

Springfield - Abraham Lincoln Capital Airport (KSPI)

Lat: 39.85°NLon: 89.68°WElev: 587ft.

Fair

76°F

24°C

Humidity 94%
Wind Speed Calm
Barometer 29.93 in (1013.0 mb)
Dewpoint 74°F (23°C)
Visibility 10.00 mi
Heat Index76°F (24°C)
Last update 4 Sep 11:52 pm CDT
Extended Forecast for

Petersburg IL

Extreme Heat Warning September 5, 12:11am until September 5, 07:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning September 5, 12:11am until September 5, 07:00pm

    NOW until 7:00pm Sat

    Extreme Heat Warning

  • Overnight

    Low: 73 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny and hot, with a high near 98. Heat index values as high as 104. Calm wind becoming north 5 to 8 mph in the afternoon.

    High: 98 °F

    Hot

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 68. East northeast wind 5 to 8 mph, with gusts as high as 16 mph.

    Low: 68 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly cloudy, then gradually becoming sunny, with a high near 90. East northeast wind 5 to 8 mph.

    High: 90 °F

    Decreasing
    Clouds

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 62. East wind 5 to 7 mph.

    Low: 62 °F

    Mostly Clear

  • Labor Day

    Labor Day: Sunny, with a high near 89. East southeast wind 5 to 7 mph.

    High: 89 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 64. East wind around 7 mph, with gusts as high as 15 mph.

    Low: 64 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 96.

    High: 96 °F

    Hot

Detailed Forecast

Overnight
Mostly clear, with a low around 73. Calm wind.
Saturday
Sunny and hot, with a high near 98. Heat index values as high as 104. Calm wind becoming north 5 to 8 mph in the afternoon.
Saturday Night
Partly cloudy, with a low around 68. East northeast wind 5 to 8 mph, with gusts as high as 16 mph.
Sunday
Mostly cloudy, then gradually becoming sunny, with a high near 90. East northeast wind 5 to 8 mph.
Sunday Night
Mostly clear, with a low around 62. East wind 5 to 7 mph.
Labor Day
Sunny, with a high near 89. East southeast wind 5 to 7 mph.
Monday Night
Mostly clear, with a low around 64. East wind around 7 mph, with gusts as high as 15 mph.
Tuesday
Sunny and hot, with a high near 96.
Tuesday Night
Mostly clear, with a low around 74.
Wednesday
Mostly sunny and hot, with a high near 98.
Wednesday Night
A chance of showers. Partly cloudy, with a low around 69.
Thursday
Mostly sunny, with a high near 90.
Thursday Night
Partly cloudy, with a low around 63.
Friday
Mostly sunny, with a high near 89.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Petersburg IL
 40°N 89.85°W (Elev. 551 ft)
Last Update:
11:46 pm CDT Sep 4, 2026
Forecast Valid:
12am CDT Sep 5, 2026-6pm CDT Sep 11, 2026
 
Forecast Discussion
 
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Additional Resources

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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