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Current conditions at

Decatur Airport (KDEC)

Lat: 39.83°NLon: 88.87°WElev: 670ft.

Fair

56°F

13°C

Humidity 65%
Wind Speed SW 8 mph
Barometer 29.97 in (1014.6 mb)
Dewpoint 44°F (7°C)
Visibility 10.00 mi
Last update 6 Oct 11:54 pm CDT
Extended Forecast for

4 Miles S Niantic IL

  • Overnight

    Overnight: Clear, with a low around 51. South southwest wind 6 to 8 mph.

    Low: 51 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 85. South southwest wind 7 to 10 mph becoming west northwest in the afternoon. Winds could gust as high as 17 mph.

    High: 85 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 52. Northwest wind around 6 mph becoming calm in the evening.

    Low: 52 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 77. Calm wind becoming north northwest 5 to 8 mph in the morning.

    High: 77 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 49. North wind around 5 mph becoming calm in the evening.

    Low: 49 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 81. East wind 6 to 10 mph becoming south in the afternoon. Winds could gust as high as 15 mph.

    High: 81 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 55. South southeast wind around 9 mph, with gusts as high as 16 mph.

    Low: 55 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 59.

    Low: 59 °F

    Partly Cloudy

Detailed Forecast

Overnight
Clear, with a low around 51. South southwest wind 6 to 8 mph.
Wednesday
Sunny, with a high near 85. South southwest wind 7 to 10 mph becoming west northwest in the afternoon. Winds could gust as high as 17 mph.
Wednesday Night
Mostly clear, with a low around 52. Northwest wind around 6 mph becoming calm in the evening.
Thursday
Sunny, with a high near 77. Calm wind becoming north northwest 5 to 8 mph in the morning.
Thursday Night
Mostly clear, with a low around 49. North wind around 5 mph becoming calm in the evening.
Friday
Sunny, with a high near 81. East wind 6 to 10 mph becoming south in the afternoon. Winds could gust as high as 15 mph.
Friday Night
Mostly clear, with a low around 55. South southeast wind around 9 mph, with gusts as high as 16 mph.
Saturday
Sunny, with a high near 86.
Saturday Night
Partly cloudy, with a low around 59.
Sunday
A 30 percent chance of showers before 1pm. Mostly sunny, with a high near 78.
Sunday Night
Partly cloudy, with a low around 56.
Columbus Day
Mostly sunny, with a high near 81.
Monday Night
Mostly clear, with a low around 57.
Tuesday
A chance of showers. Mostly sunny, with a high near 78.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles S Niantic IL
 39.8°N 89.14°W (Elev. 561 ft)
Last Update:
10:56 pm CDT Oct 6, 2026
Forecast Valid:
12am CDT Oct 7, 2026-6pm CDT Oct 13, 2026
 
Forecast Discussion
 
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Additional Resources

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