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.

Overcast

74°F

23°C

Humidity 82%
Wind Speed NW 3 mph
Barometer 30.04 in (1016.6 mb)
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Last update 14 Oct 11:54 am CDT
Extended Forecast for

Nokomis IL

  • This Afternoon

    This Afternoon: A slight chance of showers and thunderstorms before 1pm, then a slight chance of showers between 1pm and 4pm. Cloudy, with a high near 75. Light north wind. Chance of precipitation is 20%.

    High: 75 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: A slight chance of showers and thunderstorms, then a chance of showers after 4am. Cloudy, with a low around 63. Calm wind becoming northeast around 5 mph after midnight. Chance of precipitation is 30%.

    Low: 63 °F

    Cloudy then
    Chance
    Showers

  • Thursday

    Thursday: Showers and thunderstorms before noon, then showers likely and possibly a thunderstorm between noon and 1pm, then a chance of showers and thunderstorms after 1pm. High near 80. East wind 5 to 9 mph becoming south in the afternoon. Chance of precipitation is 80%.

    High: 80 °F

    Showers

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 3am, then a slight chance of showers between 3am and 4am. Mostly cloudy, with a low around 48. Southwest wind 7 to 17 mph becoming northwest after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 50%.

    Low: 48 °F

    Chance
    Showers

  • Friday

    Friday: A 20 percent chance of showers after 1pm. Mostly cloudy, with a high near 55. Breezy, with a northwest wind 17 to 20 mph, with gusts as high as 29 mph.

    High: 55 °F

    Mostly Cloudy
    and Breezy
    then Slight
    Chance
    Showers

  • Friday Night

    Friday Night: Partly cloudy, with a low around 38.

    Low: 38 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 61.

    High: 61 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 37.

    Low: 37 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 69.

    High: 69 °F

    Sunny

Detailed Forecast

This Afternoon
A slight chance of showers and thunderstorms before 1pm, then a slight chance of showers between 1pm and 4pm. Cloudy, with a high near 75. Light north wind. Chance of precipitation is 20%.
Tonight
A slight chance of showers and thunderstorms, then a chance of showers after 4am. Cloudy, with a low around 63. Calm wind becoming northeast around 5 mph after midnight. Chance of precipitation is 30%.
Thursday
Showers and thunderstorms before noon, then showers likely and possibly a thunderstorm between noon and 1pm, then a chance of showers and thunderstorms after 1pm. High near 80. East wind 5 to 9 mph becoming south in the afternoon. Chance of precipitation is 80%.
Thursday Night
A chance of showers and thunderstorms before 3am, then a slight chance of showers between 3am and 4am. Mostly cloudy, with a low around 48. Southwest wind 7 to 17 mph becoming northwest after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 50%.
Friday
A 20 percent chance of showers after 1pm. Mostly cloudy, with a high near 55. Breezy, with a northwest wind 17 to 20 mph, with gusts as high as 29 mph.
Friday Night
Partly cloudy, with a low around 38.
Saturday
Sunny, with a high near 61.
Saturday Night
Clear, with a low around 37.
Sunday
Sunny, with a high near 69.
Sunday Night
Partly cloudy, with a low around 44.
Monday
Mostly sunny, with a high near 71.
Monday Night
Partly cloudy, with a low around 47.
Tuesday
Mostly sunny, with a high near 76.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Nokomis IL
 39.3°N 89.29°W (Elev. 669 ft)
Last Update:
11:31 am CDT Oct 14, 2026
Forecast Valid:
12pm CDT Oct 14, 2026-6pm CDT Oct 20, 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