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

62°F

17°C

Humidity 96%
Wind Speed S 15 G 26 mph
Barometer 30.03 in (1016.7 mb)
Dewpoint 61°F (16°C)
Visibility 7.00 mi
Last update 2 Nov 6:54 pm CST
Extended Forecast for

Bethany IL

  • Tonight

    Tonight: Patchy drizzle before 8pm. Mostly cloudy, with a low around 59. Breezy, with a south wind 14 to 20 mph, with gusts as high as 28 mph.

    Low: 59 °F

    Patchy
    Drizzle then
    Mostly Cloudy
    and Breezy

  • Tuesday

    Tuesday: A 40 percent chance of showers and thunderstorms, mainly after 2pm. Mostly cloudy, with a high near 75. Breezy, with a south wind 17 to 24 mph, with gusts as high as 34 mph.

    High: 75 °F

    Breezy.
    Mostly Cloudy
    then Chance
    Showers

  • Tuesday Night

    Tuesday Night: Rain and thunderstorms likely. Mostly cloudy, with a low around 54. South wind 11 to 17 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 54 °F

    Rain Likely

  • Wednesday

    Wednesday: A 30 percent chance of rain before noon. Mostly cloudy, with a high near 63. West southwest wind 10 to 14 mph, with gusts as high as 21 mph.

    High: 63 °F

    Chance Rain
    then Partly
    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 43. Southwest wind 7 to 9 mph.

    Low: 43 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 62. Southwest wind 8 to 13 mph, with gusts as high as 18 mph.

    High: 62 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 41. West wind 5 to 7 mph.

    Low: 41 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 57.

    High: 57 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 36.

    Low: 36 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Patchy drizzle before 8pm. Mostly cloudy, with a low around 59. Breezy, with a south wind 14 to 20 mph, with gusts as high as 28 mph.
Tuesday
A 40 percent chance of showers and thunderstorms, mainly after 2pm. Mostly cloudy, with a high near 75. Breezy, with a south wind 17 to 24 mph, with gusts as high as 34 mph.
Tuesday Night
Rain and thunderstorms likely. Mostly cloudy, with a low around 54. South wind 11 to 17 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New precipitation amounts between a half and three quarters of an inch possible.
Wednesday
A 30 percent chance of rain before noon. Mostly cloudy, with a high near 63. West southwest wind 10 to 14 mph, with gusts as high as 21 mph.
Wednesday Night
Partly cloudy, with a low around 43. Southwest wind 7 to 9 mph.
Thursday
Mostly sunny, with a high near 62. Southwest wind 8 to 13 mph, with gusts as high as 18 mph.
Thursday Night
Mostly cloudy, with a low around 41. West wind 5 to 7 mph.
Friday
Partly sunny, with a high near 57.
Friday Night
Mostly cloudy, with a low around 36.
Saturday
Partly sunny, with a high near 56.
Saturday Night
Mostly cloudy, with a low around 33.
Sunday
Mostly sunny, with a high near 58.
Sunday Night
Partly cloudy, with a low around 33.
Monday
Mostly sunny, with a high near 60.
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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:
5:56 pm CST Nov 2, 2026
Forecast Valid:
7pm CST Nov 2, 2026-6pm CST Nov 9, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation