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

Decatur Airport (KDEC)

Lat: 39.83°NLon: 88.87°WElev: 670ft.

Fair

51°F

11°C

Humidity 92%
Wind Speed Calm
Barometer 30.03 in (1016.7 mb)
Dewpoint 49°F (9°C)
Visibility 10.00 mi
Last update 11 Oct 7:54 am CDT
Extended Forecast for

Ohlman IL

  • Today

    Today: Sunny, with a high near 84. Light and variable wind.

    High: 84 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 61. Calm wind becoming southwest around 6 mph after midnight.

    Low: 61 °F

    Increasing
    Clouds

  • Columbus Day

    Columbus Day: Mostly sunny, with a high near 92. Southwest wind 6 to 11 mph.

    High: 92 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Clear, with a low around 69. Southwest wind 6 to 8 mph.

    Low: 69 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 92. West wind 8 to 10 mph.

    High: 92 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 66.

    Low: 66 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 81. Chance of precipitation is 70%.

    High: 81 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 59.

    Low: 59 °F

    Chance
    Showers

  • Thursday

    Thursday: Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 76. Chance of precipitation is 70%.

    High: 76 °F

    Showers
    Likely

Detailed Forecast

Today
Sunny, with a high near 84. Light and variable wind.
Tonight
Increasing clouds, with a low around 61. Calm wind becoming southwest around 6 mph after midnight.
Columbus Day
Mostly sunny, with a high near 92. Southwest wind 6 to 11 mph.
Monday Night
Clear, with a low around 69. Southwest wind 6 to 8 mph.
Tuesday
Sunny, with a high near 92. West wind 8 to 10 mph.
Tuesday Night
A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 66.
Wednesday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 81. Chance of precipitation is 70%.
Wednesday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 59.
Thursday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 76. Chance of precipitation is 70%.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 52. Chance of precipitation is 40%.
Friday
Partly sunny, with a high near 66.
Friday Night
Partly cloudy, with a low around 40.
Saturday
Mostly sunny, with a high near 59.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Ohlman IL
 39.34°N 89.23°W (Elev. 682 ft)
Last Update:
5:26 am CDT Oct 11, 2026
Forecast Valid:
8am CDT Oct 11, 2026-6pm CDT Oct 17, 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