Hazardous Weather Conditions

Current conditions at

Decatur Airport (KDEC)

Lat: 39.83°NLon: 88.87°WElev: 670ft.

Mostly Cloudy

69°F

21°C

Humidity 78%
Wind Speed SW 16 mph
Barometer 29.92 in (1012.5 mb)
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Last update 22 Sep 3:54 am CDT
Extended Forecast for

2 Miles SE Mount Zion IL

  • Overnight

    Overnight: Scattered showers and thunderstorms.  Cloudy, with a low around 63. South wind around 6 mph.  Chance of precipitation is 40%.

    Low: 63 °F

    Scattered
    Showers

  • Monday

    Monday: Scattered showers and thunderstorms, mainly between 10am and 1pm.  Mostly cloudy, with a high near 79. South wind 6 to 10 mph.  Chance of precipitation is 40%.

    High: 79 °F

    Scattered
    Showers

  • Monday Night

    Monday Night: Patchy fog after 5am.  Otherwise, partly cloudy, with a low around 64. South wind around 6 mph becoming calm  after midnight.

    Low: 64 °F

    Partly Cloudy
    then Patchy
    Fog

  • Tuesday

    Tuesday: Scattered showers and thunderstorms after 1pm.  Patchy fog before 9am.  Otherwise, partly sunny, with a high near 83. Calm wind becoming south southwest around 6 mph in the morning.  Chance of precipitation is 30%.

    High: 83 °F

    Patchy Fog
    then
    Scattered
    T-storms

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm before 10pm, then showers likely between 10pm and 1am, then showers likely and possibly a thunderstorm after 1am.  Mostly cloudy, with a low around 63. Light and variable wind becoming east around 5 mph after midnight.  Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 63 °F

    Showers
    Likely

  • Wednesday

    Wednesday: Showers likely, with thunderstorms also possible after 1pm.  Mostly cloudy, with a high near 75. East wind 6 to 10 mph becoming north northeast in the afternoon. Winds could gust as high as 16 mph.  Chance of precipitation is 70%. New rainfall amounts between three quarters and one inch possible.

    High: 75 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms.  Mostly cloudy, with a low around 59. North wind 7 to 9 mph.  Chance of precipitation is 50%.

    Low: 59 °F

    Chance
    T-storms then
    Chance
    Showers

  • Thursday

    Thursday: A 40 percent chance of showers.  Partly sunny, with a high near 73.

    High: 73 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 56.

    Low: 56 °F

    Partly Cloudy

Detailed Forecast

Overnight
Scattered showers and thunderstorms. Cloudy, with a low around 63. South wind around 6 mph. Chance of precipitation is 40%.
Monday
Scattered showers and thunderstorms, mainly between 10am and 1pm. Mostly cloudy, with a high near 79. South wind 6 to 10 mph. Chance of precipitation is 40%.
Monday Night
Patchy fog after 5am. Otherwise, partly cloudy, with a low around 64. South wind around 6 mph becoming calm after midnight.
Tuesday
Scattered showers and thunderstorms after 1pm. Patchy fog before 9am. Otherwise, partly sunny, with a high near 83. Calm wind becoming south southwest around 6 mph in the morning. Chance of precipitation is 30%.
Tuesday Night
Showers likely and possibly a thunderstorm before 10pm, then showers likely between 10pm and 1am, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 63. Light and variable wind becoming east around 5 mph after midnight. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday
Showers likely, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 75. East wind 6 to 10 mph becoming north northeast in the afternoon. Winds could gust as high as 16 mph. Chance of precipitation is 70%. New rainfall amounts between three quarters and one inch possible.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 59. North wind 7 to 9 mph. Chance of precipitation is 50%.
Thursday
A 40 percent chance of showers. Partly sunny, with a high near 73.
Thursday Night
Partly cloudy, with a low around 56.
Friday
Mostly sunny, with a high near 77.
Friday Night
Mostly clear, with a low around 54.
Saturday
Sunny, with a high near 80.
Saturday Night
Mostly clear, with a low around 55.
Sunday
Sunny, with a high near 82.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SE Mount Zion IL
 39.75°N 88.86°W (Elev. 709 ft)
4:25 am CDT Sep 22, 2025
4am CDT Sep 22, 2025-6pm CDT Sep 28, 2025
 
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Additional Resources

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