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

57°F

14°C

Humidity 69%
Wind Speed Vrbl 7 mph
Barometer 30.10 in (1019.4 mb)
Dewpoint 47°F (8°C)
Visibility 10.00 mi
Last update 10 Nov 9:54 am CST
Extended Forecast for

Elwin IL

  • Today

    Today: Sunny, with a high near 68. Northwest wind around 5 mph becoming calm in the afternoon.

    High: 68 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 43. Light and variable wind.

    Low: 43 °F

    Increasing
    Clouds

  • Veterans Day

    Veterans Day: A slight chance of showers and thunderstorms between 1pm and 3pm. Mostly sunny, with a high near 65. Light and variable wind becoming west northwest 9 to 14 mph in the morning. Winds could gust as high as 24 mph. Chance of precipitation is 20%.

    High: 65 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 38. North northwest wind 14 to 16 mph, with gusts as high as 23 mph.

    Low: 38 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 47. North northwest wind 14 to 17 mph, with gusts as high as 22 mph.

    High: 47 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 29. North northwest wind 9 to 14 mph, with gusts as high as 18 mph.

    Low: 29 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 43. North northwest wind 9 to 14 mph, with gusts as high as 18 mph.

    High: 43 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 23.

    Low: 23 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 46.

    High: 46 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 68. Northwest wind around 5 mph becoming calm in the afternoon.
Tonight
Increasing clouds, with a low around 43. Light and variable wind.
Veterans Day
A slight chance of showers and thunderstorms between 1pm and 3pm. Mostly sunny, with a high near 65. Light and variable wind becoming west northwest 9 to 14 mph in the morning. Winds could gust as high as 24 mph. Chance of precipitation is 20%.
Wednesday Night
Mostly cloudy, with a low around 38. North northwest wind 14 to 16 mph, with gusts as high as 23 mph.
Thursday
Partly sunny, with a high near 47. North northwest wind 14 to 17 mph, with gusts as high as 22 mph.
Thursday Night
Partly cloudy, with a low around 29. North northwest wind 9 to 14 mph, with gusts as high as 18 mph.
Friday
Sunny, with a high near 43. North northwest wind 9 to 14 mph, with gusts as high as 18 mph.
Friday Night
Mostly clear, with a low around 23.
Saturday
Sunny, with a high near 46.
Saturday Night
Mostly clear, with a low around 28.
Sunday
Mostly sunny, with a high near 50.
Sunday Night
Partly cloudy, with a low around 32.
Monday
Mostly sunny, with a high near 53.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Elwin IL
 39.78°N 88.97°W (Elev. 705 ft)
Last Update:
10:21 am CST Nov 10, 2026
Forecast Valid:
10am CST Nov 10, 2026-6pm CST Nov 16, 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