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Hazardous Weather Conditions

Current conditions at

Decatur Airport (KDEC)

Lat: 39.83°NLon: 88.87°WElev: 670ft.

Overcast

71°F

22°C

Humidity 90%
Wind Speed E 10 mph
Barometer 29.98 in (1014.9 mb)
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Last update 26 Jun 2:54 pm CDT
Extended Forecast for

Mount Zion IL

  • This Afternoon

    This Afternoon: Showers and possibly a thunderstorm. High near 75. East wind around 9 mph, with gusts as high as 15 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 75 °F

    Showers

  • Tonight

    Tonight: Showers and thunderstorms likely before 1am, then a slight chance of showers between 1am and 4am. Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 63. East wind 5 to 9 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 63 °F

    Showers
    Likely and
    Patchy Fog

  • Saturday

    Saturday: A slight chance of showers and thunderstorms between 1pm and 4pm. Patchy fog before 8am. Otherwise, partly sunny, with a high near 79. Northeast wind around 6 mph becoming southeast in the afternoon. Chance of precipitation is 20%.

    High: 79 °F

    Patchy Fog
    then Slight
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A 40 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 67. Northeast wind 5 to 7 mph becoming southeast after midnight.

    Low: 67 °F

    Partly Cloudy
    then Chance
    T-storms

  • Sunday

    Sunday: Mostly cloudy, then gradually becoming sunny, with a high near 88. Southeast wind 8 to 13 mph, with gusts as high as 20 mph.

    High: 88 °F

    Decreasing
    Clouds

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 73. South wind 8 to 11 mph, with gusts as high as 17 mph.

    Low: 73 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 91. South wind 8 to 13 mph, with gusts as high as 18 mph.

    High: 91 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 74.

    Low: 74 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 92.

    High: 92 °F

    Sunny

Detailed Forecast

This Afternoon
Showers and possibly a thunderstorm. High near 75. East wind around 9 mph, with gusts as high as 15 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers and thunderstorms likely before 1am, then a slight chance of showers between 1am and 4am. Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 63. East wind 5 to 9 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday
A slight chance of showers and thunderstorms between 1pm and 4pm. Patchy fog before 8am. Otherwise, partly sunny, with a high near 79. Northeast wind around 6 mph becoming southeast in the afternoon. Chance of precipitation is 20%.
Saturday Night
A 40 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 67. Northeast wind 5 to 7 mph becoming southeast after midnight.
Sunday
Mostly cloudy, then gradually becoming sunny, with a high near 88. Southeast wind 8 to 13 mph, with gusts as high as 20 mph.
Sunday Night
Mostly clear, with a low around 73. South wind 8 to 11 mph, with gusts as high as 17 mph.
Monday
Sunny, with a high near 91. South wind 8 to 13 mph, with gusts as high as 18 mph.
Monday Night
Mostly clear, with a low around 74.
Tuesday
Sunny, with a high near 92.
Tuesday Night
Clear, with a low around 73.
Wednesday
Sunny, with a high near 93.
Wednesday Night
Clear, with a low around 74.
Thursday
Sunny, with a high near 93.
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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:
3:36 pm CDT Jun 26, 2026
Forecast Valid:
3pm CDT Jun 26, 2026-6pm CDT Jul 2, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation