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.

Partly Cloudy

79°F

26°C

Humidity 65%
Wind Speed NE 6 mph
Barometer 30.05 in (1017.1 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 20 Aug 12:54 pm CDT
Extended Forecast for

2 Miles E Elwin IL

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 81. North northeast wind around 8 mph.

    High: 81 °F

    Mostly Sunny

  • Tonight

    Tonight: Patchy fog after 4am. Otherwise, mostly clear, with a low around 59. North northeast wind around 6 mph becoming calm in the evening.

    Low: 59 °F

    Mostly Clear
    then Patchy
    Fog

  • Friday

    Friday: Patchy fog before 8am. Otherwise, mostly sunny, with a high near 82. Calm wind becoming west around 6 mph in the afternoon.

    High: 82 °F

    Patchy Fog
    then Mostly
    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 64. West southwest wind 3 to 6 mph.

    Low: 64 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 81. Northwest wind 7 to 13 mph, with gusts as high as 20 mph.

    High: 81 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 59. North northwest wind 3 to 8 mph.

    Low: 59 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 78. North wind 3 to 8 mph.

    High: 78 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 57.

    Low: 57 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 77.

    High: 77 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 81. North northeast wind around 8 mph.
Tonight
Patchy fog after 4am. Otherwise, mostly clear, with a low around 59. North northeast wind around 6 mph becoming calm in the evening.
Friday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 82. Calm wind becoming west around 6 mph in the afternoon.
Friday Night
Partly cloudy, with a low around 64. West southwest wind 3 to 6 mph.
Saturday
Mostly sunny, with a high near 81. Northwest wind 7 to 13 mph, with gusts as high as 20 mph.
Saturday Night
Mostly clear, with a low around 59. North northwest wind 3 to 8 mph.
Sunday
Sunny, with a high near 78. North wind 3 to 8 mph.
Sunday Night
Partly cloudy, with a low around 57.
Monday
Mostly sunny, with a high near 77.
Monday Night
Partly cloudy, with a low around 59.
Tuesday
Mostly sunny, with a high near 81.
Tuesday Night
Partly cloudy, with a low around 63.
Wednesday
Mostly sunny, with a high near 83.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles E Elwin IL
 39.8°N 88.91°W (Elev. 656 ft)
Last Update:
1:36 pm CDT Aug 20, 2026
Forecast Valid:
1pm CDT Aug 20, 2026-6pm CDT Aug 26, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation