Current conditions at

Decatur Airport (KDEC)

Lat: 39.83°NLon: 88.87°WElev: 670ft.

Overcast

25°F

-4°C

Humidity 75%
Wind Speed W 9 mph
Barometer 30.18 in (1022.9 mb)
Dewpoint 18°F (-8°C)
Visibility 10.00 mi
Wind Chill16°F (-9°C)
Last update 21 Feb 8:54 am CST
Extended Forecast for

2 Miles ENE Harristown IL

  • Today

    Today: A chance of flurries between 10am and 1pm.  Mostly cloudy, with a high near 38. West northwest wind 10 to 14 mph, with gusts as high as 21 mph.

    High: 38 °F

    Chance
    Flurries

  • Tonight

    Tonight: Mostly cloudy, with a low around 19. Northwest wind 11 to 18 mph, with gusts as high as 28 mph.

    Low: 19 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 29. Wind chill values between 3 and 13. Blustery, with a northwest wind 20 to 22 mph, with gusts as high as 33 mph.

    High: 29 °F

    Partly Sunny
    and Blustery

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 16. Wind chill values between zero and 10. Blustery, with a northwest wind 18 to 20 mph, with gusts as high as 28 mph.

    Low: 16 °F

    Mostly Cloudy
    and Blustery
    then Partly
    Cloudy

  • Monday

    Monday: Sunny, with a high near 31. Northwest wind 9 to 18 mph, with gusts as high as 26 mph.

    High: 31 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 19. Light and variable wind becoming south southwest 5 to 8 mph after midnight.

    Low: 19 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 46. South wind 9 to 18 mph, with gusts as high as 26 mph.

    High: 46 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 35.

    Low: 35 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 55.

    High: 55 °F

    Partly Sunny

Detailed Forecast

Today
A chance of flurries between 10am and 1pm. Mostly cloudy, with a high near 38. West northwest wind 10 to 14 mph, with gusts as high as 21 mph.
Tonight
Mostly cloudy, with a low around 19. Northwest wind 11 to 18 mph, with gusts as high as 28 mph.
Sunday
Partly sunny, with a high near 29. Wind chill values between 3 and 13. Blustery, with a northwest wind 20 to 22 mph, with gusts as high as 33 mph.
Sunday Night
Partly cloudy, with a low around 16. Wind chill values between zero and 10. Blustery, with a northwest wind 18 to 20 mph, with gusts as high as 28 mph.
Monday
Sunny, with a high near 31. Northwest wind 9 to 18 mph, with gusts as high as 26 mph.
Monday Night
Partly cloudy, with a low around 19. Light and variable wind becoming south southwest 5 to 8 mph after midnight.
Tuesday
Partly sunny, with a high near 46. South wind 9 to 18 mph, with gusts as high as 26 mph.
Tuesday Night
Mostly cloudy, with a low around 35.
Wednesday
Partly sunny, with a high near 55.
Wednesday Night
A 30 percent chance of rain before midnight. Mostly cloudy, with a low around 31.
Thursday
Mostly sunny, with a high near 47.
Thursday Night
Mostly clear, with a low around 28.
Friday
Sunny, with a high near 57.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles ENE Harristown IL
 39.84°N 89.03°W (Elev. 666 ft)
7:36 am CST Feb 21, 2026
9am CST Feb 21, 2026-6pm CST Feb 27, 2026
 
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Additional Resources

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