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

39°F

4°C

Humidity 93%
Wind Speed S 5 mph
Barometer 30.01 in (1016.3 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Wind Chill35°F (2°C)
Last update 7 May 5:54 am CDT
Extended Forecast for

Argenta IL

  • Today

    Today: A 20 percent chance of showers and thunderstorms after 4pm. Partly sunny, then gradually becoming sunny, with a high near 63. Breezy, with a light southwest wind becoming west southwest 16 to 21 mph in the morning. Winds could gust as high as 31 mph.

    High: 63 °F

    Sunny then
    Slight Chance
    T-storms and
    Breezy

  • Tonight

    Tonight: A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 3am. Partly cloudy, with a low around 46. South wind 6 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.

    Low: 46 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Friday

    Friday: Showers likely, with thunderstorms also possible after 4pm. Mostly cloudy, with a high near 66. South southwest wind 8 to 11 mph, with gusts as high as 15 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 66 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before 7pm, then a chance of showers between 7pm and 1am. Cloudy during the early evening, then gradual clearing, with a low around 47. West southwest wind 5 to 7 mph. Chance of precipitation is 40%.

    Low: 47 °F

    Chance
    T-storms then
    Chance
    Showers

  • Saturday

    Saturday: Sunny, with a high near 77. Breezy, with a southwest wind 9 to 14 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 26 mph.

    High: 77 °F

    Sunny then
    Sunny and
    Breezy

  • Saturday Night

    Saturday Night: A 40 percent chance of showers after 1am. Mostly cloudy, with a low around 52. West southwest wind 8 to 11 mph becoming north after midnight. Winds could gust as high as 16 mph.

    Low: 52 °F

    Partly Cloudy
    then Chance
    Showers

  • Sunday

    Sunday: Partly sunny, with a high near 65. North wind 9 to 16 mph, with gusts as high as 21 mph.

    High: 65 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 42.

    Low: 42 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 67.

    High: 67 °F

    Sunny

Detailed Forecast

Today
A 20 percent chance of showers and thunderstorms after 4pm. Partly sunny, then gradually becoming sunny, with a high near 63. Breezy, with a light southwest wind becoming west southwest 16 to 21 mph in the morning. Winds could gust as high as 31 mph.
Tonight
A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 3am. Partly cloudy, with a low around 46. South wind 6 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.
Friday
Showers likely, with thunderstorms also possible after 4pm. Mostly cloudy, with a high near 66. South southwest wind 8 to 11 mph, with gusts as high as 15 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night
A chance of showers and thunderstorms before 7pm, then a chance of showers between 7pm and 1am. Cloudy during the early evening, then gradual clearing, with a low around 47. West southwest wind 5 to 7 mph. Chance of precipitation is 40%.
Saturday
Sunny, with a high near 77. Breezy, with a southwest wind 9 to 14 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 26 mph.
Saturday Night
A 40 percent chance of showers after 1am. Mostly cloudy, with a low around 52. West southwest wind 8 to 11 mph becoming north after midnight. Winds could gust as high as 16 mph.
Sunday
Partly sunny, with a high near 65. North wind 9 to 16 mph, with gusts as high as 21 mph.
Sunday Night
Mostly clear, with a low around 42.
Monday
Sunny, with a high near 67.
Monday Night
Mostly clear, with a low around 46.
Tuesday
A chance of showers. Mostly sunny, with a high near 71. Breezy.
Tuesday Night
A chance of showers. Partly cloudy, with a low around 52.
Wednesday
Mostly sunny, with a high near 74.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Argenta IL
 39.99°N 88.82°W (Elev. 676 ft)
Last Update:
6:25 am CDT May 7, 2026
Forecast Valid:
6am CDT May 7, 2026-6pm CDT May 13, 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