National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Decatur Airport (KDEC)

Lat: 39.83°NLon: 88.87°WElev: 670ft.

Overcast

55°F

13°C

Humidity 80%
Wind Speed SW 9 mph
Barometer 29.81 in (1009.1 mb)
Dewpoint 49°F (9°C)
Visibility 10.00 mi
Wind Chill53°F (12°C)
Last update 4 Nov 5:54 pm CST
Extended Forecast for

Bethany IL

  • Tonight

    Tonight: A slight chance of drizzle before 10pm. Mostly cloudy, with a low around 43. West southwest wind 6 to 9 mph, with gusts as high as 15 mph.

    Low: 43 °F

    Slight Chance
    Drizzle then
    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 59. West southwest wind 8 to 14 mph, with gusts as high as 21 mph.

    High: 59 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: A 20 percent chance of rain before 7pm. Mostly cloudy, with a low around 39. West wind 5 to 8 mph becoming north after midnight.

    Low: 39 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 52. North northwest wind 8 to 11 mph, with gusts as high as 18 mph.

    High: 52 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 29. North wind 5 to 7 mph becoming calm in the evening.

    Low: 29 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 52. Calm wind becoming north northwest around 6 mph in the afternoon.

    High: 52 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 28. Light northwest wind.

    Low: 28 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 58.

    High: 58 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 31.

    Low: 31 °F

    Mostly Clear

Detailed Forecast

Tonight
A slight chance of drizzle before 10pm. Mostly cloudy, with a low around 43. West southwest wind 6 to 9 mph, with gusts as high as 15 mph.
Thursday
Partly sunny, with a high near 59. West southwest wind 8 to 14 mph, with gusts as high as 21 mph.
Thursday Night
A 20 percent chance of rain before 7pm. Mostly cloudy, with a low around 39. West wind 5 to 8 mph becoming north after midnight.
Friday
Partly sunny, with a high near 52. North northwest wind 8 to 11 mph, with gusts as high as 18 mph.
Friday Night
Mostly clear, with a low around 29. North wind 5 to 7 mph becoming calm in the evening.
Saturday
Sunny, with a high near 52. Calm wind becoming north northwest around 6 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 28. Light northwest wind.
Sunday
Sunny, with a high near 58.
Sunday Night
Mostly clear, with a low around 31.
Monday
Sunny, with a high near 64.
Monday Night
Clear, with a low around 35.
Tuesday
Sunny, with a high near 64.
Tuesday Night
Mostly clear, with a low around 36.
Veterans Day
Sunny, with a high near 64.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Bethany IL
 39.64°N 88.75°W (Elev. 650 ft)
Last Update:
4:21 pm CST Nov 4, 2026
Forecast Valid:
6pm CST Nov 4, 2026-6pm CST Nov 11, 2026
 
Forecast Discussion
 
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Additional Resources

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National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation