National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
News Headlines

Hazardous Weather Conditions

Current conditions at

Decatur Airport (KDEC)

Lat: 39.83°NLon: 88.87°WElev: 670ft.

Fair

71°F

22°C

Humidity 81%
Wind Speed SE 5 mph
Barometer 29.89 in (1011.4 mb)
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Last update 14 Oct 2:54 am CDT
Extended Forecast for

Weldon IL

  • Overnight

    Overnight: A 20 percent chance of showers and thunderstorms before 4am. Mostly cloudy, with a low around 68. North wind around 6 mph.

    Low: 68 °F

    Slight Chance
    T-storms

  • Wednesday

    Wednesday: A chance of showers and thunderstorms. Mostly cloudy, with a high near 75. North wind 5 to 10 mph. Chance of precipitation is 50%.

    High: 75 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A slight chance of showers before 1am, then a slight chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 58. Northeast wind 10 to 14 mph. Chance of precipitation is 20%.

    Low: 58 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Thursday

    Thursday: Showers and possibly a thunderstorm before 4pm, then a chance of showers and thunderstorms between 4pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. High near 73. East wind 9 to 11 mph becoming south southwest in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 73 °F

    Showers

  • Thursday Night

    Thursday Night: Showers likely and possibly a thunderstorm, then showers after 7pm. Low around 47. Breezy, with a west southwest wind 13 to 22 mph becoming northwest after midnight. Winds could gust as high as 28 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 47 °F

    Showers and
    Breezy

  • Friday

    Friday: Partly sunny, with a high near 56. Breezy, with a northwest wind 24 to 29 mph, with gusts as high as 34 mph.

    High: 56 °F

    Partly Sunny
    and Breezy

  • Friday Night

    Friday Night: Areas of frost after 5am. Otherwise, mostly clear, with a low around 36. Breezy, with a north wind 15 to 20 mph decreasing to 8 to 13 mph after midnight. Winds could gust as high as 23 mph.

    Low: 36 °F

    Mostly Clear
    and Breezy
    then Areas
    Frost

  • Saturday

    Saturday: Areas of frost before 8am. Otherwise, sunny, with a high near 58.

    High: 58 °F

    Areas Frost
    then Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 37.

    Low: 37 °F

    Clear

Detailed Forecast

Overnight
A 20 percent chance of showers and thunderstorms before 4am. Mostly cloudy, with a low around 68. North wind around 6 mph.
Wednesday
A chance of showers and thunderstorms. Mostly cloudy, with a high near 75. North wind 5 to 10 mph. Chance of precipitation is 50%.
Wednesday Night
A slight chance of showers before 1am, then a slight chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 58. Northeast wind 10 to 14 mph. Chance of precipitation is 20%.
Thursday
Showers and possibly a thunderstorm before 4pm, then a chance of showers and thunderstorms between 4pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. High near 73. East wind 9 to 11 mph becoming south southwest in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Thursday Night
Showers likely and possibly a thunderstorm, then showers after 7pm. Low around 47. Breezy, with a west southwest wind 13 to 22 mph becoming northwest after midnight. Winds could gust as high as 28 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
Partly sunny, with a high near 56. Breezy, with a northwest wind 24 to 29 mph, with gusts as high as 34 mph.
Friday Night
Areas of frost after 5am. Otherwise, mostly clear, with a low around 36. Breezy, with a north wind 15 to 20 mph decreasing to 8 to 13 mph after midnight. Winds could gust as high as 23 mph.
Saturday
Areas of frost before 8am. Otherwise, sunny, with a high near 58.
Saturday Night
Clear, with a low around 37.
Sunday
Areas of frost before 7am. Otherwise, sunny, with a high near 69.
Sunday Night
Partly cloudy, with a low around 45.
Monday
Partly sunny, with a high near 71.
Monday Night
Partly cloudy, with a low around 47.
Tuesday
Mostly sunny, with a high near 76.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Weldon IL
 40.12°N 88.75°W (Elev. 709 ft)
Last Update:
3:31 am CDT Oct 14, 2026
Forecast Valid:
3am CDT Oct 14, 2026-6pm CDT Oct 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