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

Hazardous Weather Conditions

Current conditions at

Decatur Airport (KDEC)

Lat: 39.83°NLon: 88.87°WElev: 670ft.

Fair

59°F

15°C

Humidity 72%
Wind Speed NA
Barometer 30.09 in (1018.5 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 24 May 11:54 pm CDT
Extended Forecast for

5 Miles ESE Cisco IL

  • Overnight

    Overnight: Patchy fog after 3am. Otherwise, mostly clear, with a low around 54. Light east wind.

    Low: 54 °F

    Patchy Fog

  • Memorial Day

    Memorial Day: Patchy fog before 10am. Otherwise, sunny, with a high near 80. East wind 3 to 8 mph.

    High: 80 °F

    Patchy Fog
    then Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 56. East southeast wind 3 to 6 mph.

    Low: 56 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 81. East southeast wind 3 to 7 mph.

    High: 81 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers after 1am. Mostly cloudy, with a low around 62. East southeast wind 3 to 6 mph.

    Low: 62 °F

    Mostly Cloudy
    then Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 81. East wind 5 to 7 mph. Chance of precipitation is 50%.

    High: 81 °F

    Chance
    Showers then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 62. East wind around 6 mph.

    Low: 62 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 83.

    High: 83 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 62.

    Low: 62 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Patchy fog after 3am. Otherwise, mostly clear, with a low around 54. Light east wind.
Memorial Day
Patchy fog before 10am. Otherwise, sunny, with a high near 80. East wind 3 to 8 mph.
Monday Night
Mostly clear, with a low around 56. East southeast wind 3 to 6 mph.
Tuesday
Mostly sunny, with a high near 81. East southeast wind 3 to 7 mph.
Tuesday Night
A 30 percent chance of showers after 1am. Mostly cloudy, with a low around 62. East southeast wind 3 to 6 mph.
Wednesday
A chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 81. East wind 5 to 7 mph. Chance of precipitation is 50%.
Wednesday Night
Mostly clear, with a low around 62. East wind around 6 mph.
Thursday
Mostly sunny, with a high near 83.
Thursday Night
Mostly cloudy, with a low around 62.
Friday
Partly sunny, with a high near 78.
Friday Night
A chance of showers. Mostly cloudy, with a low around 60.
Saturday
A chance of showers. Partly sunny, with a high near 76.
Saturday Night
Partly cloudy, with a low around 57.
Sunday
Mostly sunny, with a high near 76.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles ESE Cisco IL
 39.98°N 88.64°W (Elev. 666 ft)
Last Update:
7:51 pm CDT May 24, 2026
Forecast Valid:
12am CDT May 25, 2026-6pm CDT May 31, 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