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

54°F

12°C

Humidity 55%
Wind Speed S 5 mph
Barometer 30.09 in (1019.3 mb)
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Wind Chill53°F (12°C)
Last update 9 Nov 5:54 pm CST
Extended Forecast for

Weldon IL

  • Tonight

    Tonight: Clear, with a low around 45. South southwest wind 7 to 9 mph becoming west after midnight.

    Low: 45 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 66. Northwest wind 3 to 6 mph.

    High: 66 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 41. Light and variable wind.

    Low: 41 °F

    Partly Cloudy

  • Veterans Day

    Veterans Day: A 50 percent chance of showers after noon. Partly sunny, with a high near 63. Southeast wind 5 to 10 mph becoming northwest 11 to 16 mph in the afternoon.

    High: 63 °F

    Mostly Sunny
    then Chance
    Showers

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers before midnight. Mostly cloudy, with a low around 39. North northwest wind 15 to 18 mph.

    Low: 39 °F

    Chance
    Showers then
    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 48. Breezy, with a north northwest wind 18 to 22 mph, with gusts as high as 25 mph.

    High: 48 °F

    Partly Sunny
    and Breezy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 29. Blustery, with a north northwest wind 14 to 20 mph.

    Low: 29 °F

    Mostly Cloudy
    and Blustery
    then Partly
    Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 44.

    High: 44 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 26.

    Low: 26 °F

    Mostly Clear

Detailed Forecast

Tonight
Clear, with a low around 45. South southwest wind 7 to 9 mph becoming west after midnight.
Tuesday
Sunny, with a high near 66. Northwest wind 3 to 6 mph.
Tuesday Night
Partly cloudy, with a low around 41. Light and variable wind.
Veterans Day
A 50 percent chance of showers after noon. Partly sunny, with a high near 63. Southeast wind 5 to 10 mph becoming northwest 11 to 16 mph in the afternoon.
Wednesday Night
A 30 percent chance of showers before midnight. Mostly cloudy, with a low around 39. North northwest wind 15 to 18 mph.
Thursday
Partly sunny, with a high near 48. Breezy, with a north northwest wind 18 to 22 mph, with gusts as high as 25 mph.
Thursday Night
Mostly cloudy, with a low around 29. Blustery, with a north northwest wind 14 to 20 mph.
Friday
Mostly sunny, with a high near 44.
Friday Night
Mostly clear, with a low around 26.
Saturday
Sunny, with a high near 48.
Saturday Night
Mostly clear, with a low around 29.
Sunday
Sunny, with a high near 53.
Sunday Night
Partly cloudy, with a low around 36.
Monday
Mostly sunny, with a high near 58.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Weldon IL
 40.12°N 88.75°W (Elev. 709 ft)
Last Update:
12:51 pm CST Nov 9, 2026
Forecast Valid:
6pm CST Nov 9, 2026-6pm CST Nov 16, 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