Current conditions at

Decatur Airport (KDEC)

Lat: 39.83°NLon: 88.87°WElev: 670ft.

Fog/Mist

60°F

16°C

Humidity 96%
Wind Speed Calm
Barometer 30.14 in (1020.3 mb)
Dewpoint 59°F (15°C)
Visibility 5.00 mi
Last update 28 Aug 6:54 am CDT
Extended Forecast for

Niantic IL

  • Today

    Today: Patchy fog before 8am.  Otherwise, sunny, with a high near 84. Light north northeast wind.

    High: 84 °F

    Patchy Fog
    then Mostly
    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 60. Light and variable wind.

    Low: 60 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 85. South wind 5 to 8 mph.

    High: 85 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 67. South wind 7 to 9 mph, with gusts as high as 15 mph.

    Low: 67 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 91. South wind 10 to 16 mph, with gusts as high as 21 mph.

    High: 91 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 73. South wind around 11 mph, with gusts as high as 18 mph.

    Low: 73 °F

    Mostly Clear

  • Monday

    Monday: Sunny and hot, with a high near 95. South southwest wind 11 to 14 mph, with gusts as high as 18 mph.

    High: 95 °F

    Hot

  • Monday Night

    Monday Night: Mostly clear, with a low around 75.

    Low: 75 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 97.

    High: 97 °F

    Hot

Detailed Forecast

Today
Patchy fog before 8am. Otherwise, sunny, with a high near 84. Light north northeast wind.
Tonight
Mostly clear, with a low around 60. Light and variable wind.
Saturday
Mostly sunny, with a high near 85. South wind 5 to 8 mph.
Saturday Night
Partly cloudy, with a low around 67. South wind 7 to 9 mph, with gusts as high as 15 mph.
Sunday
Mostly sunny, with a high near 91. South wind 10 to 16 mph, with gusts as high as 21 mph.
Sunday Night
Mostly clear, with a low around 73. South wind around 11 mph, with gusts as high as 18 mph.
Monday
Sunny and hot, with a high near 95. South southwest wind 11 to 14 mph, with gusts as high as 18 mph.
Monday Night
Mostly clear, with a low around 75.
Tuesday
Sunny and hot, with a high near 97.
Tuesday Night
Mostly clear, with a low around 76.
Wednesday
Sunny and hot, with a high near 98.
Wednesday Night
Mostly clear, with a low around 74.
Thursday
Sunny and hot, with a high near 98.
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ABOUT THIS FORECAST

 
Point Forecast:
Niantic IL
 39.85°N 89.17°W (Elev. 600 ft)
6:36 am CDT Aug 28, 2026
7am CDT Aug 28, 2026-6pm CDT Sep 3, 2026
 
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Additional Resources

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Hourly Weather Forecast

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