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Hazardous Weather Conditions

Current conditions at

Decatur Airport (KDEC)

Lat: 39.83°NLon: 88.87°WElev: 670ft.

Overcast

66°F

19°C

Humidity 78%
Wind Speed NE 12 mph
Barometer 30.09 in (1018.5 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 14 Oct 10:54 pm CDT
Extended Forecast for

Mount Zion IL

  • Tonight

    Tonight: A slight chance of showers between 1am and 4am. Mostly cloudy, with a low around 61. East northeast wind around 9 mph, with gusts as high as 15 mph. Chance of precipitation is 20%.

    Low: 61 °F

    Slight Chance
    Showers

  • Thursday

    Thursday: Showers and thunderstorms likely before 9am, then showers and possibly a thunderstorm between 9am and 1pm, then a chance of showers and thunderstorms after 1pm. High near 77. East wind 8 to 10 mph becoming south in the afternoon. Winds could gust as high as 17 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 77 °F

    Showers

  • Thursday Night

    Thursday Night: Showers and thunderstorms likely before 1am, then a chance of showers between 1am and 4am. Mostly cloudy, with a low around 48. Breezy, with a west southwest wind 10 to 15 mph increasing to 18 to 23 mph after midnight. Winds could gust as high as 28 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 48 °F

    T-storms
    Likely then
    Chance
    Showers and
    Breezy

  • Friday

    Friday: A 30 percent chance of showers after 1pm. Partly sunny, with a high near 57. Breezy, with a northwest wind around 24 mph, with gusts as high as 34 mph.

    High: 57 °F

    Breezy.
    Partly Sunny
    then Chance
    Showers

  • Friday Night

    Friday Night: Partly cloudy, with a low around 37. North wind 11 to 16 mph, with gusts as high as 21 mph.

    Low: 37 °F

    Partly Cloudy

  • Saturday

    Saturday: Patchy frost before 8am. Otherwise, sunny, with a high near 60. North wind 5 to 7 mph becoming calm in the afternoon.

    High: 60 °F

    Patchy Frost
    then Sunny

  • Saturday Night

    Saturday Night: Areas of frost after 5am. Otherwise, clear, with a low around 35. Calm wind becoming south southeast around 5 mph after midnight.

    Low: 35 °F

    Clear then
    Areas Frost

  • Sunday

    Sunday: Areas of frost before 8am. Otherwise, sunny, with a high near 66.

    High: 66 °F

    Areas Frost
    then Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 39.

    Low: 39 °F

    Mostly Clear

Detailed Forecast

Tonight
A slight chance of showers between 1am and 4am. Mostly cloudy, with a low around 61. East northeast wind around 9 mph, with gusts as high as 15 mph. Chance of precipitation is 20%.
Thursday
Showers and thunderstorms likely before 9am, then showers and possibly a thunderstorm between 9am and 1pm, then a chance of showers and thunderstorms after 1pm. High near 77. East wind 8 to 10 mph becoming south in the afternoon. Winds could gust as high as 17 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Thursday Night
Showers and thunderstorms likely before 1am, then a chance of showers between 1am and 4am. Mostly cloudy, with a low around 48. Breezy, with a west southwest wind 10 to 15 mph increasing to 18 to 23 mph after midnight. Winds could gust as high as 28 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Friday
A 30 percent chance of showers after 1pm. Partly sunny, with a high near 57. Breezy, with a northwest wind around 24 mph, with gusts as high as 34 mph.
Friday Night
Partly cloudy, with a low around 37. North wind 11 to 16 mph, with gusts as high as 21 mph.
Saturday
Patchy frost before 8am. Otherwise, sunny, with a high near 60. North wind 5 to 7 mph becoming calm in the afternoon.
Saturday Night
Areas of frost after 5am. Otherwise, clear, with a low around 35. Calm wind becoming south southeast around 5 mph after midnight.
Sunday
Areas of frost before 8am. Otherwise, sunny, with a high near 66.
Sunday Night
Mostly clear, with a low around 39.
Monday
Mostly sunny, with a high near 73.
Monday Night
Partly cloudy, with a low around 43.
Tuesday
Mostly sunny, with a high near 73.
Tuesday Night
Mostly clear, with a low around 47.
Wednesday
Sunny, with a high near 78.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mount Zion IL
 39.77°N 88.86°W (Elev. 702 ft)
Last Update:
10:06 pm CDT Oct 14, 2026
Forecast Valid:
11pm CDT Oct 14, 2026-6pm CDT Oct 21, 2026
 
Forecast Discussion
 
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Additional Resources

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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