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.

Light Rain

74°F

23°C

Humidity 88%
Wind Speed NE 17 G 29 mph
Barometer 29.97 in (1014.4 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Last update 14 Aug 2:54 am CDT
Extended Forecast for

Cisco IL

  • Overnight

    Overnight: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 4am. Low around 71. East northeast wind around 8 mph. Chance of precipitation is 100%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 71 °F

    Showers

  • Friday

    Friday: Showers and thunderstorms before 1pm, then a slight chance of showers and thunderstorms after 2pm. High near 89. Heat index values as high as 100. East southeast wind 6 to 8 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 89 °F

    Showers then
    Slight Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before 4am, then a slight chance of showers. Partly cloudy, with a low around 73. East wind 6 to 9 mph, with gusts as high as 15 mph. Chance of precipitation is 30%.

    Low: 73 °F

    Partly Cloudy
    then Chance
    Showers

  • Saturday

    Saturday: A 50 percent chance of showers between 11am and 1pm. Partly sunny, with a high near 91. Heat index values as high as 103. Southeast wind 8 to 10 mph becoming southwest in the morning. Winds could gust as high as 15 mph.

    High: 91 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 74. West southwest wind 6 to 8 mph.

    Low: 74 °F

    Partly Cloudy

  • Sunday

    Sunday: A chance of showers between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 89. West northwest wind 8 to 13 mph, with gusts as high as 17 mph. Chance of precipitation is 40%.

    High: 89 °F

    Partly Sunny
    then Chance
    T-storms

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am. Mostly cloudy, with a low around 69. North northwest wind 7 to 13 mph. Chance of precipitation is 30%.

    Low: 69 °F

    Chance
    T-storms then
    Chance
    Showers

  • Monday

    Monday: Mostly sunny, with a high near 82.

    High: 82 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 62.

    Low: 62 °F

    Partly Cloudy

Detailed Forecast

Overnight
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 4am. Low around 71. East northeast wind around 8 mph. Chance of precipitation is 100%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
Showers and thunderstorms before 1pm, then a slight chance of showers and thunderstorms after 2pm. High near 89. Heat index values as high as 100. East southeast wind 6 to 8 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night
A chance of showers and thunderstorms before 4am, then a slight chance of showers. Partly cloudy, with a low around 73. East wind 6 to 9 mph, with gusts as high as 15 mph. Chance of precipitation is 30%.
Saturday
A 50 percent chance of showers between 11am and 1pm. Partly sunny, with a high near 91. Heat index values as high as 103. Southeast wind 8 to 10 mph becoming southwest in the morning. Winds could gust as high as 15 mph.
Saturday Night
Partly cloudy, with a low around 74. West southwest wind 6 to 8 mph.
Sunday
A chance of showers between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 89. West northwest wind 8 to 13 mph, with gusts as high as 17 mph. Chance of precipitation is 40%.
Sunday Night
A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am. Mostly cloudy, with a low around 69. North northwest wind 7 to 13 mph. Chance of precipitation is 30%.
Monday
Mostly sunny, with a high near 82.
Monday Night
Partly cloudy, with a low around 62.
Tuesday
Sunny, with a high near 83.
Tuesday Night
Mostly clear, with a low around 66.
Wednesday
Mostly sunny, with a high near 87.
Wednesday Night
Partly cloudy, with a low around 67.
Thursday
Mostly sunny, with a high near 81.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Cisco IL
 40.01°N 88.73°W (Elev. 679 ft)
Last Update:
1:26 am CDT Aug 14, 2026
Forecast Valid:
3am CDT Aug 14, 2026-6pm CDT Aug 20, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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