Current conditions at

Decatur Airport (KDEC)

Lat: 39.83°NLon: 88.87°WElev: 670ft.

Fair

59°F

15°C

Humidity 78%
Wind Speed NA
Barometer 30.05 in (1017.3 mb)
Dewpoint 52°F (11°C)
Visibility 9.00 mi
Last update 26 May 2:54 am CDT
Extended Forecast for

Mount Zion IL

  • Overnight

    Overnight: Mostly cloudy, with a steady temperature around 60. Calm wind.

    Low: 60 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 82. East wind 3 to 8 mph.

    High: 82 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers after midnight.  Mostly cloudy, with a low around 62. East wind around 6 mph becoming calm  after midnight.

    Low: 62 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Wednesday

    Wednesday: A 30 percent chance of showers and thunderstorms after 1pm.  Partly sunny, with a high near 82. Light and variable wind becoming north northeast 5 to 7 mph in the morning.

    High: 82 °F

    Partly Sunny
    then Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 60. North northeast wind 3 to 8 mph.

    Low: 60 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 81. East northeast wind 10 to 13 mph, with gusts as high as 17 mph.

    High: 81 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 57. East northeast wind 8 to 10 mph, with gusts as high as 15 mph.

    Low: 57 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 78.

    High: 78 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 57.

    Low: 57 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a steady temperature around 60. Calm wind.
Tuesday
Mostly cloudy, with a high near 82. East wind 3 to 8 mph.
Tuesday Night
A 20 percent chance of showers after midnight. Mostly cloudy, with a low around 62. East wind around 6 mph becoming calm after midnight.
Wednesday
A 30 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 82. Light and variable wind becoming north northeast 5 to 7 mph in the morning.
Wednesday Night
Mostly clear, with a low around 60. North northeast wind 3 to 8 mph.
Thursday
Mostly sunny, with a high near 81. East northeast wind 10 to 13 mph, with gusts as high as 17 mph.
Thursday Night
Partly cloudy, with a low around 57. East northeast wind 8 to 10 mph, with gusts as high as 15 mph.
Friday
Partly sunny, with a high near 78.
Friday Night
Partly cloudy, with a low around 57.
Saturday
Mostly sunny, with a high near 77.
Saturday Night
Mostly clear, with a low around 56.
Sunday
Sunny, with a high near 76.
Sunday Night
Mostly clear, with a low around 55.
Monday
Sunny, with a high near 78.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Mount Zion IL
 39.77°N 88.89°W (Elev. 650 ft)
2:51 am CDT May 26, 2026
3am CDT May 26, 2026-6pm CDT Jun 1, 2026
 
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