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

74°F

23°C

Humidity 38%
Wind Speed SE 10 mph
Barometer 30.06 in (1017.4 mb)
Dewpoint 47°F (8°C)
Visibility 8.00 mi
Last update 25 May 7:54 pm CDT
Extended Forecast for

Argenta IL

  • Tonight

    Tonight: Mostly cloudy, with a low around 57. East southeast wind 3 to 6 mph.

    Low: 57 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 81. East wind 5 to 7 mph.

    High: 81 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: A slight chance of showers and thunderstorms between 1am and 4am, then a slight chance of showers after 4am. Mostly cloudy, with a low around 61. East southeast wind 3 to 6 mph. Chance of precipitation is 20%.

    Low: 61 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Wednesday

    Wednesday: A chance of showers before 1pm, then a chance of showers and thunderstorms between 1pm and 4pm, then a chance of showers after 4pm. Cloudy, then gradually becoming mostly sunny, with a high near 81. East wind 5 to 7 mph. Chance of precipitation is 30%.

    High: 81 °F

    Chance
    Showers then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 60. North northeast wind 5 to 8 mph.

    Low: 60 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 82. Northeast wind 10 to 14 mph, with gusts as high as 17 mph.

    High: 82 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 58. East northeast wind 9 to 11 mph, with gusts as high as 16 mph.

    Low: 58 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 77.

    High: 77 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 56.

    Low: 56 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 57. East southeast wind 3 to 6 mph.
Tuesday
Mostly cloudy, with a high near 81. East wind 5 to 7 mph.
Tuesday Night
A slight chance of showers and thunderstorms between 1am and 4am, then a slight chance of showers after 4am. Mostly cloudy, with a low around 61. East southeast wind 3 to 6 mph. Chance of precipitation is 20%.
Wednesday
A chance of showers before 1pm, then a chance of showers and thunderstorms between 1pm and 4pm, then a chance of showers after 4pm. Cloudy, then gradually becoming mostly sunny, with a high near 81. East wind 5 to 7 mph. Chance of precipitation is 30%.
Wednesday Night
Mostly clear, with a low around 60. North northeast wind 5 to 8 mph.
Thursday
Mostly sunny, with a high near 82. Northeast wind 10 to 14 mph, with gusts as high as 17 mph.
Thursday Night
Partly cloudy, with a low around 58. East northeast wind 9 to 11 mph, with gusts as high as 16 mph.
Friday
Partly sunny, with a high near 77.
Friday Night
Partly cloudy, with a low around 56.
Saturday
Mostly sunny, with a high near 76.
Saturday Night
Partly cloudy, with a low around 55.
Sunday
Sunny, with a high near 77.
Sunday Night
Mostly clear, with a low around 54.
Monday
Sunny, with a high near 79.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Argenta IL
 39.99°N 88.82°W (Elev. 676 ft)
Last Update:
7:11 pm CDT May 25, 2026
Forecast Valid:
8pm CDT May 25, 2026-6pm CDT Jun 1, 2026
 
Forecast Discussion
 
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Additional Resources

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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