Current conditions at

Decatur Airport (KDEC)

Lat: 39.83°NLon: 88.87°WElev: 670ft.

Fair

27°F

-3°C

Humidity 85%
Wind Speed Calm
Barometer 30.29 in (1026.4 mb)
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Last update 11 Feb 11:54 pm CST
Extended Forecast for

2 Miles ENE Harristown IL

  • Overnight

    Overnight: Mostly cloudy, with a low around 30. Light and variable wind.

    Low: 30 °F

    Mostly Cloudy

  • Thursday

    Thursday: Cloudy, then gradually becoming mostly sunny, with a high near 48. Calm wind becoming south southwest around 6 mph in the afternoon.

    High: 48 °F

    Decreasing
    Clouds

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 29. South southeast wind around 6 mph.

    Low: 29 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 52. South southwest wind 6 to 10 mph, with gusts as high as 16 mph.

    High: 52 °F

    Sunny

  • Friday Night

    Friday Night: Increasing clouds, with a low around 32. South wind around 6 mph.

    Low: 32 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Mostly cloudy, with a high near 52. South southeast wind 5 to 8 mph.

    High: 52 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: A 40 percent chance of rain.  Mostly cloudy, with a low around 38. Southeast wind around 8 mph becoming northeast after midnight.

    Low: 38 °F

    Chance Rain

  • Sunday

    Sunday: Mostly sunny, with a high near 55.

    High: 55 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 33.

    Low: 33 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly cloudy, with a low around 30. Light and variable wind.
Thursday
Cloudy, then gradually becoming mostly sunny, with a high near 48. Calm wind becoming south southwest around 6 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 29. South southeast wind around 6 mph.
Friday
Sunny, with a high near 52. South southwest wind 6 to 10 mph, with gusts as high as 16 mph.
Friday Night
Increasing clouds, with a low around 32. South wind around 6 mph.
Saturday
Mostly cloudy, with a high near 52. South southeast wind 5 to 8 mph.
Saturday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 38. Southeast wind around 8 mph becoming northeast after midnight.
Sunday
Mostly sunny, with a high near 55.
Sunday Night
Mostly clear, with a low around 33.
Washington's Birthday
Partly sunny, with a high near 57.
Monday Night
Mostly cloudy, with a low around 41.
Tuesday
Mostly cloudy, with a high near 60.
Tuesday Night
Mostly cloudy, with a low around 50.
Wednesday
A chance of rain. Mostly sunny, with a high near 64. Breezy.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles ENE Harristown IL
 39.84°N 89.03°W (Elev. 666 ft)
12:36 am CST Feb 12, 2026
12am CST Feb 12, 2026-6pm CST Feb 18, 2026
 
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