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

22°C

72°F

Humidity 94%
Wind Speed Calm
Barometer 1017.2 mb (30.06 in)
Dewpoint 21°C (70°F)
Visibility 14 km
Last update 14 Jul 12:54 am CDT
Extended Forecast for

5 Miles ESE Moweaqua IL

Dense Fog Advisory until July 14, 10:00am
Click here for hazard details and duration
Dense Fog Advisory
  •  
    Dense Fog Advisory until July 14, 10:00am

    NOW until 10:00am Mon

    Dense Fog Advisory

  • Overnight

    Low: 19 °C

    Areas Dense
    Fog

  • Monday

    Monday: Areas of dense fog before 8am. Otherwise, mostly sunny, with a high near 29. Calm wind.

    High: 29 °C

    Areas Dense
    Fog then
    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 21. Calm wind.

    Low: 21 °C

    Partly Cloudy

  • Tuesday

    Tuesday: A 50 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 30. East southeast wind 5 to 10 km/h becoming south in the afternoon.

    High: 30 °C

    Partly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 22. Calm wind.

    Low: 22 °C

    Mostly Cloudy

  • Wednesday

    Wednesday: A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 31. South southwest wind 10 to 13 km/h.

    High: 31 °C

    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 22. South southwest wind around 10 km/h.

    Low: 22 °C

    Chance
    T-storms

  • Thursday

    Thursday: A 50 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 31.

    High: 31 °C

    Mostly Sunny
    then Chance
    T-storms

Detailed Forecast

Overnight
Areas of dense fog. Otherwise, mostly cloudy, with a low around 19. Calm wind.
Monday
Areas of dense fog before 8am. Otherwise, mostly sunny, with a high near 29. Calm wind.
Monday Night
Partly cloudy, with a low around 21. Calm wind.
Tuesday
A 50 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 30. East southeast wind 5 to 10 km/h becoming south in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 22. Calm wind.
Wednesday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 31. South southwest wind 10 to 13 km/h.
Wednesday Night
A 30 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 22. South southwest wind around 10 km/h.
Thursday
A 50 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 31.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 21. Chance of precipitation is 40%.
Friday
A 40 percent chance of showers after 1pm. Partly sunny, with a high near 29.
Friday Night
Partly cloudy, with a low around 20.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 30.
Saturday Night
Partly cloudy, with a low around 21.
Sunday
A chance of showers and thunderstorms. Mostly sunny, with a high near 30.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles ESE Moweaqua IL
 39.6°N 88.93°W (Elev. 659 m)
Last Update:
12:26 am CDT Jul 14, 2025
Forecast Valid:
1am CDT Jul 14, 2025-6pm CDT Jul 20, 2025
 
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