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

Hazardous Weather Conditions

Current conditions at

Decatur Airport (KDEC)

Lat: 39.83°NLon: 88.87°WElev: 670ft.

Partly Cloudy

88°F

31°C

Humidity 38%
Wind Speed SW 12 G 18 mph
Barometer 30.15 in (1020.3 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Heat Index87°F (31°C)
Last update 3 Oct 3:54 pm CDT
Extended Forecast for

Mount Zion IL

  • This Afternoon

    This Afternoon: A 20 percent chance of showers. Mostly sunny, with a high near 89. Southwest wind around 8 mph.

    High: 89 °F

    Slight Chance
    Showers

  • Tonight

    Tonight: A 10 percent chance of showers before 7pm. Mostly clear, with a low around 63. South wind 3 to 6 mph.

    Low: 63 °F

    Slight Chance
    Showers then
    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 87. South wind 6 to 13 mph, with gusts as high as 17 mph.

    High: 87 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 57. South wind 6 to 8 mph.

    Low: 57 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 86. South wind 7 to 15 mph, with gusts as high as 23 mph.

    High: 86 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 62. South wind 7 to 10 mph, with gusts as high as 15 mph.

    Low: 62 °F

    Mostly Clear

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 86. South southwest wind 6 to 10 mph.

    High: 86 °F

    Sunny then
    Chance
    T-storms

  • Monday Night

    Monday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 62. Chance of precipitation is 50%.

    Low: 62 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: A 40 percent chance of showers before 1pm. Partly sunny, with a high near 77.

    High: 77 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
A 20 percent chance of showers. Mostly sunny, with a high near 89. Southwest wind around 8 mph.
Tonight
A 10 percent chance of showers before 7pm. Mostly clear, with a low around 63. South wind 3 to 6 mph.
Saturday
Sunny, with a high near 87. South wind 6 to 13 mph, with gusts as high as 17 mph.
Saturday Night
Clear, with a low around 57. South wind 6 to 8 mph.
Sunday
Sunny, with a high near 86. South wind 7 to 15 mph, with gusts as high as 23 mph.
Sunday Night
Mostly clear, with a low around 62. South wind 7 to 10 mph, with gusts as high as 15 mph.
Monday
A 30 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 86. South southwest wind 6 to 10 mph.
Monday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 62. Chance of precipitation is 50%.
Tuesday
A 40 percent chance of showers before 1pm. Partly sunny, with a high near 77.
Tuesday Night
Partly cloudy, with a low around 52.
Wednesday
Sunny, with a high near 73.
Wednesday Night
Mostly clear, with a low around 47.
Thursday
Sunny, with a high near 73.
Thursday Night
Mostly clear, with a low around 47.
Friday
Sunny, with a high near 77.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mount Zion IL
 39.77°N 88.89°W (Elev. 650 ft)
Last Update:
4:15 pm CDT Oct 3, 2025
Forecast Valid:
4pm CDT Oct 3, 2025-6pm CDT Oct 10, 2025
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation