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

71°F

22°C

Humidity 44%
Wind Speed S 7 mph
Barometer 29.94 in (1013.4 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 29 Sep 10:52 pm CDT
Extended Forecast for

Mechanicsburg IL

  • Tonight

    Tonight: Mostly cloudy, with a low around 64. South southeast wind around 7 mph, with gusts as high as 15 mph.

    Low: 64 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A 20 percent chance of showers before 1pm. Mostly cloudy, with a high near 81. South wind 6 to 8 mph.

    High: 81 °F

    Slight Chance
    Showers

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 70. South wind 5 to 8 mph, with gusts as high as 15 mph.

    Low: 70 °F

    Mostly Cloudy

  • Thursday

    Thursday: A 50 percent chance of showers. Increasing clouds, with a high near 83. South southwest wind 8 to 10 mph, with gusts as high as 16 mph.

    High: 83 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: Showers. Low around 64. Northwest wind 5 to 8 mph. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.

    Low: 64 °F

    Showers

  • Friday

    Friday: A 50 percent chance of showers before 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 71. North northeast wind 9 to 14 mph, with gusts as high as 20 mph.

    High: 71 °F

    Chance
    Showers

  • Friday Night

    Friday Night: Partly cloudy, with a low around 52. Northeast wind 7 to 10 mph, with gusts as high as 17 mph.

    Low: 52 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 69.

    High: 69 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 52.

    Low: 52 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 64. South southeast wind around 7 mph, with gusts as high as 15 mph.
Wednesday
A 20 percent chance of showers before 1pm. Mostly cloudy, with a high near 81. South wind 6 to 8 mph.
Wednesday Night
Mostly cloudy, with a low around 70. South wind 5 to 8 mph, with gusts as high as 15 mph.
Thursday
A 50 percent chance of showers. Increasing clouds, with a high near 83. South southwest wind 8 to 10 mph, with gusts as high as 16 mph.
Thursday Night
Showers. Low around 64. Northwest wind 5 to 8 mph. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.
Friday
A 50 percent chance of showers before 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 71. North northeast wind 9 to 14 mph, with gusts as high as 20 mph.
Friday Night
Partly cloudy, with a low around 52. Northeast wind 7 to 10 mph, with gusts as high as 17 mph.
Saturday
Mostly sunny, with a high near 69.
Saturday Night
Partly cloudy, with a low around 52.
Sunday
Sunny, with a high near 70.
Sunday Night
Mostly clear, with a low around 48.
Monday
Sunny, with a high near 68.
Monday Night
Mostly clear, with a low around 47.
Tuesday
Sunny, with a high near 69.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mechanicsburg IL
 39.81°N 89.4°W (Elev. 577 ft)
Last Update:
8:06 pm CDT Sep 29, 2026
Forecast Valid:
11pm CDT Sep 29, 2026-6pm CDT Oct 6, 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