Current conditions at

Decatur Airport (KDEC)

Lat: 39.83°NLon: 88.87°WElev: 670ft.

Fair

32°C

89°F

Humidity 65%
Wind Speed S 15 km/h
Barometer 1015.5 mb (30.01 in)
Dewpoint 24°C (76°F)
Visibility 16 km
Heat Index38°C (100°F)
Last update 14 Jul 12:54 pm CDT
Extended Forecast for

Decatur IL

Heat Advisory July 14, 01:00pm until July 15, 08:00pm
Click here for hazard details and duration
Heat Advisory
  • This Afternoon

    This Afternoon: Sunny, with a high near 34. Heat index values as high as 39. Southwest wind 16 to 18 km/h, with gusts as high as 32 km/h.

    High: 34 °C

    Sunny

  • Tonight

    Tonight: Clear during the evening, then mostly cloudy overnight, with a low around 24. South southwest wind 11 to 16 km/h, with gusts as high as 32 km/h.

    Low: 24 °C

    Partly Cloudy

  • Monday

    Monday: Sunny and hot, with a high near 35. Heat index values as high as 41. South southwest wind 13 to 21 km/h, with gusts as high as 34 km/h.

    High: 35 °C

    Hot

  • Monday Night

    Monday Night: A 30 percent chance of showers and thunderstorms after 1am.  Partly cloudy, with a low around 24. South southwest wind 16 to 21 km/h becoming southeast in the evening. Winds could gust as high as 35 km/h.

    Low: 24 °C

    Mostly Clear
    then Chance
    T-storms

  • Tuesday

    Tuesday: A 40 percent chance of showers and thunderstorms.  Partly sunny, with a high near 32. West wind 13 to 16 km/h, with gusts as high as 27 km/h.

    High: 32 °C

    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 40 percent chance of showers and thunderstorms before 1am.  Mostly cloudy, with a low around 21. North wind 8 to 13 km/h.

    Low: 21 °C

    Chance
    T-storms

  • Wednesday

    Wednesday: Partly sunny, with a high near 28. North wind 10 to 13 km/h.

    High: 28 °C

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 16.

    Low: 16 °C

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 26.

    High: 26 °C

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 34. Heat index values as high as 39. Southwest wind 16 to 18 km/h, with gusts as high as 32 km/h.
Tonight
Clear during the evening, then mostly cloudy overnight, with a low around 24. South southwest wind 11 to 16 km/h, with gusts as high as 32 km/h.
Monday
Sunny and hot, with a high near 35. Heat index values as high as 41. South southwest wind 13 to 21 km/h, with gusts as high as 34 km/h.
Monday Night
A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 24. South southwest wind 16 to 21 km/h becoming southeast in the evening. Winds could gust as high as 35 km/h.
Tuesday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 32. West wind 13 to 16 km/h, with gusts as high as 27 km/h.
Tuesday Night
A 40 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 21. North wind 8 to 13 km/h.
Wednesday
Partly sunny, with a high near 28. North wind 10 to 13 km/h.
Wednesday Night
Partly cloudy, with a low around 16.
Thursday
Sunny, with a high near 26.
Thursday Night
Mostly clear, with a low around 14.
Friday
Sunny, with a high near 27.
Friday Night
Mostly clear, with a low around 16.
Saturday
Sunny, with a high near 27.
Click Map For Forecast

ABOUT THIS FORECAST

 
Point Forecast:
Decatur IL
 39.84°N 88.94°W (Elev. 692 m)
12:43 pm CDT Jul 14, 2024
12pm CDT Jul 14, 2024-6pm CDT Jul 20, 2024
 
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