Hazardous Weather Conditions

Current conditions at

Decatur Airport (KDEC)

Lat: 39.83°NLon: 88.87°WElev: 670ft.

Partly Cloudy

44°F

7°C

Humidity 53%
Wind Speed N 16 mph
Barometer 30.33 in (1027.1 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Wind Chill37°F (3°C)
Last update 7 Apr 12:54 am CDT
Extended Forecast for

2 Miles ENE Harristown IL

  • Overnight

    Overnight: A slight chance of rain after 4am, mixing with snow after 5am.  Cloudy, with a low around 35. Northeast wind around 11 mph, with gusts as high as 21 mph.  Chance of precipitation is 20%.

    Low: 35 °F

    Slight Chance
    Rain/Snow

  • Tuesday

    Tuesday: A 20 percent chance of snow before 9am.  Mostly cloudy, with a high near 48. East wind 10 to 13 mph, with gusts as high as 18 mph.

    High: 48 °F

    Slight Chance
    Snow then
    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 37. East wind 10 to 13 mph, with gusts as high as 20 mph.

    Low: 37 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 69. Breezy, with a south southeast wind 14 to 21 mph, with gusts as high as 29 mph.

    High: 69 °F

    Partly Sunny
    then Mostly
    Sunny and
    Breezy

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 53. South wind around 17 mph, with gusts as high as 25 mph.

    Low: 53 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 74. South southwest wind 13 to 15 mph, with gusts as high as 22 mph.

    High: 74 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A 40 percent chance of showers after 1am.  Mostly cloudy, with a low around 55. South wind 9 to 13 mph, with gusts as high as 20 mph.

    Low: 55 °F

    Mostly Cloudy
    then Chance
    Showers

  • Friday

    Friday: Showers likely, mainly before 1pm.  Mostly cloudy, with a high near 67. Chance of precipitation is 60%.

    High: 67 °F

    Showers
    Likely

  • Friday Night

    Friday Night: A 30 percent chance of showers.  Mostly cloudy, with a low around 47.

    Low: 47 °F

    Chance
    Showers

Detailed Forecast

Overnight
A slight chance of rain after 4am, mixing with snow after 5am. Cloudy, with a low around 35. Northeast wind around 11 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.
Tuesday
A 20 percent chance of snow before 9am. Mostly cloudy, with a high near 48. East wind 10 to 13 mph, with gusts as high as 18 mph.
Tuesday Night
Mostly cloudy, with a low around 37. East wind 10 to 13 mph, with gusts as high as 20 mph.
Wednesday
Partly sunny, with a high near 69. Breezy, with a south southeast wind 14 to 21 mph, with gusts as high as 29 mph.
Wednesday Night
Partly cloudy, with a low around 53. South wind around 17 mph, with gusts as high as 25 mph.
Thursday
Mostly sunny, with a high near 74. South southwest wind 13 to 15 mph, with gusts as high as 22 mph.
Thursday Night
A 40 percent chance of showers after 1am. Mostly cloudy, with a low around 55. South wind 9 to 13 mph, with gusts as high as 20 mph.
Friday
Showers likely, mainly before 1pm. Mostly cloudy, with a high near 67. Chance of precipitation is 60%.
Friday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 47.
Saturday
A 30 percent chance of showers. Partly sunny, with a high near 68.
Saturday Night
Mostly cloudy, with a low around 57.
Sunday
Mostly cloudy, with a high near 78. Breezy.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 63.
Monday
A chance of showers. Partly sunny, with a high near 81. Breezy.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles ENE Harristown IL
 39.84°N 89.03°W (Elev. 666 ft)
1:26 am CDT Apr 7, 2026
1am CDT Apr 7, 2026-6pm CDT Apr 13, 2026
 
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Additional Resources

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Hourly Weather Forecast

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