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Current conditions at

Decatur Airport (KDEC)

Lat: 39.83°NLon: 88.87°WElev: 670ft.

Fair

87°F

31°C

Humidity 39%
Wind Speed SW 15 G 28 mph
Barometer 29.86 in (1010.4 mb)
Dewpoint 59°F (15°C)
Visibility 8.00 mi
Heat Index86°F (30°C)
Last update 12 Oct 3:54 pm CDT
Extended Forecast for

Cisco IL

  • Tonight

    Tonight: Mostly clear, with a low around 70. South southwest wind 11 to 14 mph, with gusts as high as 20 mph.

    Low: 70 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 91. West southwest wind 13 to 15 mph, with gusts as high as 20 mph.

    High: 91 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A 50 percent chance of showers and thunderstorms, mainly after 1am. Increasing clouds, with a low around 69. South southwest wind 6 to 8 mph.

    Low: 69 °F

    Mostly Clear
    then Chance
    T-storms

  • Wednesday

    Wednesday: Showers. High near 80. West northwest wind 5 to 8 mph becoming north in the afternoon. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    High: 80 °F

    Showers

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers after 1am. Mostly cloudy, with a low around 59. East northeast wind 10 to 13 mph.

    Low: 59 °F

    Cloudy then
    Chance
    Showers

  • Thursday

    Thursday: Showers, with thunderstorms also possible after 1pm. High near 75. East northeast wind around 10 mph becoming south in the afternoon. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 75 °F

    Showers

  • Thursday Night

    Thursday Night: A 30 percent chance of showers before 1am. Mostly cloudy, with a low around 50. Breezy, with a west northwest wind 11 to 16 mph increasing to 17 to 22 mph after midnight. Winds could gust as high as 26 mph.

    Low: 50 °F

    Chance
    Showers and
    Breezy

  • Friday

    Friday: Partly sunny, with a high near 62. Breezy.

    High: 62 °F

    Partly Sunny
    and Breezy

  • Friday Night

    Friday Night: Mostly clear, with a low around 37.

    Low: 37 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 70. South southwest wind 11 to 14 mph, with gusts as high as 20 mph.
Tuesday
Sunny, with a high near 91. West southwest wind 13 to 15 mph, with gusts as high as 20 mph.
Tuesday Night
A 50 percent chance of showers and thunderstorms, mainly after 1am. Increasing clouds, with a low around 69. South southwest wind 6 to 8 mph.
Wednesday
Showers. High near 80. West northwest wind 5 to 8 mph becoming north in the afternoon. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday Night
A 40 percent chance of showers after 1am. Mostly cloudy, with a low around 59. East northeast wind 10 to 13 mph.
Thursday
Showers, with thunderstorms also possible after 1pm. High near 75. East northeast wind around 10 mph becoming south in the afternoon. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Thursday Night
A 30 percent chance of showers before 1am. Mostly cloudy, with a low around 50. Breezy, with a west northwest wind 11 to 16 mph increasing to 17 to 22 mph after midnight. Winds could gust as high as 26 mph.
Friday
Partly sunny, with a high near 62. Breezy.
Friday Night
Mostly clear, with a low around 37.
Saturday
Sunny, with a high near 62.
Saturday Night
Mostly clear, with a low around 37.
Sunday
Sunny, with a high near 69.
Sunday Night
Partly cloudy, with a low around 46.
Monday
Mostly sunny, with a high near 74.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Cisco IL
 40.01°N 88.73°W (Elev. 679 ft)
Last Update:
4:36 pm CDT Oct 12, 2026
Forecast Valid:
4pm CDT Oct 12, 2026-6pm CDT Oct 19, 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