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Current conditions at

Decatur Airport (KDEC)

Lat: 39.83°NLon: 88.87°WElev: 670ft.

Fair

83°F

28°C

Humidity 44%
Wind Speed W 10 mph
Barometer 29.86 in (1010.7 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 7 Oct 2:54 pm CDT
Extended Forecast for

2 Miles SSW Niantic IL

  • This Afternoon

    This Afternoon: Sunny, with a high near 84. West northwest wind 11 to 13 mph, with gusts as high as 16 mph.

    High: 84 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 53. North northwest wind 5 to 8 mph becoming calm after midnight.

    Low: 53 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 80. Calm wind becoming north northwest around 6 mph in the afternoon.

    High: 80 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 55. Light and variable wind becoming east southeast around 5 mph after midnight.

    Low: 55 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 85. South wind 6 to 13 mph, with gusts as high as 17 mph.

    High: 85 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 60. South southeast wind around 9 mph, with gusts as high as 16 mph.

    Low: 60 °F

    Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 86. South wind 8 to 13 mph, with gusts as high as 17 mph.

    High: 86 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 57.

    Low: 57 °F

    Chance
    Showers

  • Sunday

    Sunday: Partly sunny, with a high near 76.

    High: 76 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 84. West northwest wind 11 to 13 mph, with gusts as high as 16 mph.
Tonight
Mostly clear, with a low around 53. North northwest wind 5 to 8 mph becoming calm after midnight.
Thursday
Sunny, with a high near 80. Calm wind becoming north northwest around 6 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 55. Light and variable wind becoming east southeast around 5 mph after midnight.
Friday
Sunny, with a high near 85. South wind 6 to 13 mph, with gusts as high as 17 mph.
Friday Night
Clear, with a low around 60. South southeast wind around 9 mph, with gusts as high as 16 mph.
Saturday
Mostly sunny, with a high near 86. South wind 8 to 13 mph, with gusts as high as 17 mph.
Saturday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 57.
Sunday
Partly sunny, with a high near 76.
Sunday Night
Partly cloudy, with a low around 57.
Columbus Day
Mostly sunny, with a high near 86.
Monday Night
Partly cloudy, with a low around 54.
Tuesday
Mostly sunny, with a high near 70.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSW Niantic IL
 39.83°N 89.17°W (Elev. 600 ft)
Last Update:
1:26 pm CDT Oct 7, 2026
Forecast Valid:
3pm CDT Oct 7, 2026-6pm CDT Oct 13, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation