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.

Fog/Mist

38°F

3°C

Humidity 93%
Wind Speed W 7 mph
Barometer 29.86 in (1011.2 mb)
Dewpoint 36°F (2°C)
Visibility 6.00 mi
Wind Chill33°F (1°C)
Last update 7 Jan 12:54 am CST
Extended Forecast for

3 Miles SSE Bethany IL

  • Overnight

    Overnight: Mostly cloudy, with a low around 35. West northwest wind 3 to 7 mph.

    Low: 35 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Patchy fog before 10am. Otherwise, mostly cloudy through mid morning, then gradual clearing, with a high near 53. Calm wind becoming south southwest 5 to 8 mph in the morning.

    High: 53 °F

    Patchy Fog
    then Sunny

  • Wednesday Night

    Wednesday Night: Increasing clouds, with a low around 40. South wind 7 to 10 mph, with gusts as high as 18 mph.

    Low: 40 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Showers, mainly after noon. High near 61. Breezy, with a south southeast wind 11 to 21 mph, with gusts as high as 31 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 61 °F

    Chance
    Showers then
    Showers and
    Breezy

  • Thursday Night

    Thursday Night: Showers likely and possibly a thunderstorm before midnight, then a chance of showers. Mostly cloudy, with a low around 49. Breezy, with a south southwest wind 15 to 22 mph, with gusts as high as 31 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 49 °F

    Showers
    Likely and
    Breezy then
    Chance
    Showers

  • Friday

    Friday: Mostly cloudy, with a high near 53. West southwest wind 6 to 10 mph becoming north northeast in the afternoon. Winds could gust as high as 17 mph.

    High: 53 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: A 40 percent chance of rain. Mostly cloudy, with a low around 38. Northeast wind 6 to 10 mph becoming northwest after midnight. Winds could gust as high as 17 mph.

    Low: 38 °F

    Chance Rain

  • Saturday

    Saturday: A 30 percent chance of rain before noon. Partly sunny, with a high near 44.

    High: 44 °F

    Chance Rain
    then Partly
    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 23.

    Low: 23 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 35. West northwest wind 3 to 7 mph.
Wednesday
Patchy fog before 10am. Otherwise, mostly cloudy through mid morning, then gradual clearing, with a high near 53. Calm wind becoming south southwest 5 to 8 mph in the morning.
Wednesday Night
Increasing clouds, with a low around 40. South wind 7 to 10 mph, with gusts as high as 18 mph.
Thursday
Showers, mainly after noon. High near 61. Breezy, with a south southeast wind 11 to 21 mph, with gusts as high as 31 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday Night
Showers likely and possibly a thunderstorm before midnight, then a chance of showers. Mostly cloudy, with a low around 49. Breezy, with a south southwest wind 15 to 22 mph, with gusts as high as 31 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
Mostly cloudy, with a high near 53. West southwest wind 6 to 10 mph becoming north northeast in the afternoon. Winds could gust as high as 17 mph.
Friday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 38. Northeast wind 6 to 10 mph becoming northwest after midnight. Winds could gust as high as 17 mph.
Saturday
A 30 percent chance of rain before noon. Partly sunny, with a high near 44.
Saturday Night
Partly cloudy, with a low around 23.
Sunday
Mostly sunny, with a high near 33.
Sunday Night
Mostly clear, with a low around 23.
Monday
Sunny, with a high near 43.
Monday Night
Partly cloudy, with a low around 27.
Tuesday
Mostly sunny, with a high near 43.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSE Bethany IL
 39.61°N 88.72°W (Elev. 600 ft)
Last Update:
12:51 am CST Jan 7, 2026
Forecast Valid:
1am CST Jan 7, 2026-6pm CST Jan 13, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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