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.

Overcast

71°F

22°C

Humidity 87%
Wind Speed E 8 mph
Barometer 30.01 in (1015.9 mb)
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Last update 26 Jun 10:54 am CDT
Extended Forecast for

Argenta IL

Flood Watch June 26, 11:09am until June 27, 01:00pm
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch June 26, 11:09am until June 27, 01:00pm

    NOW until 1:00pm Sat

    Flood Watch

  • Today

    High: 71 °F

    Showers

  • Tonight

    Tonight: Showers likely, mainly before 1am. Mostly cloudy, with a low around 62. East wind 7 to 13 mph, with gusts as high as 17 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 62 °F

    Showers
    Likely then
    Chance
    Showers

  • Saturday

    Saturday: Cloudy, then gradually becoming mostly sunny, with a high near 79. Northeast wind 6 to 8 mph.

    High: 79 °F

    Decreasing
    Clouds

  • Saturday Night

    Saturday Night: A 30 percent chance of showers and thunderstorms after 5am. Partly cloudy, with a low around 66. East wind around 7 mph.

    Low: 66 °F

    Partly Cloudy
    then Chance
    T-storms

  • Sunday

    Sunday: Mostly cloudy, then gradually becoming sunny, with a high near 88. South wind 9 to 15 mph, with gusts as high as 21 mph.

    High: 88 °F

    Decreasing
    Clouds

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 73. South southeast wind 9 to 14 mph, with gusts as high as 20 mph.

    Low: 73 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 91. South southwest wind 9 to 15 mph, with gusts as high as 21 mph.

    High: 91 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 74.

    Low: 74 °F

    Mostly Clear

Detailed Forecast

Today
Showers and possibly a thunderstorm. High near 71. East wind around 13 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Tonight
Showers likely, mainly before 1am. Mostly cloudy, with a low around 62. East wind 7 to 13 mph, with gusts as high as 17 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
Cloudy, then gradually becoming mostly sunny, with a high near 79. Northeast wind 6 to 8 mph.
Saturday Night
A 30 percent chance of showers and thunderstorms after 5am. Partly cloudy, with a low around 66. East wind around 7 mph.
Sunday
Mostly cloudy, then gradually becoming sunny, with a high near 88. South wind 9 to 15 mph, with gusts as high as 21 mph.
Sunday Night
Mostly clear, with a low around 73. South southeast wind 9 to 14 mph, with gusts as high as 20 mph.
Monday
Sunny, with a high near 91. South southwest wind 9 to 15 mph, with gusts as high as 21 mph.
Monday Night
Mostly clear, with a low around 74.
Tuesday
Sunny, with a high near 93.
Tuesday Night
Clear, with a low around 74.
Wednesday
Sunny, with a high near 93.
Wednesday Night
Mostly clear, with a low around 73.
Thursday
Sunny, with a high near 93.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Argenta IL
 39.99°N 88.82°W (Elev. 676 ft)
Last Update:
10:35 am CDT Jun 26, 2026
Forecast Valid:
11am CDT Jun 26, 2026-6pm CDT Jul 2, 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