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.

Mostly Cloudy

57°F

14°C

Humidity 78%
Wind Speed SW 8 mph
Barometer 29.96 in (1014.5 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 28 Mar 4:54 am CDT
Extended Forecast for

2 Miles SE Mount Zion IL

  • Overnight

    Overnight: Scattered showers and thunderstorms. Mostly cloudy, with a low around 50. South wind around 11 mph, with gusts as high as 22 mph. Chance of precipitation is 40%.

    Low: 50 °F

    Scattered
    T-storms

  • Friday

    Friday: Scattered showers and thunderstorms, mainly before 7am. Mostly cloudy, then gradually becoming sunny, with a high near 81. Breezy, with a southwest wind 14 to 19 mph increasing to 21 to 26 mph in the afternoon. Winds could gust as high as 41 mph. Chance of precipitation is 30%.

    High: 81 °F

    Breezy.
    Scattered
    T-storms then
    Mostly Sunny

  • Friday Night

    Friday Night: A 20 percent chance of showers after 4am. Partly cloudy, with a low around 60. Breezy, with a south southwest wind 16 to 21 mph, with gusts as high as 32 mph.

    Low: 60 °F

    Mostly Clear
    and Breezy
    then Slight
    Chance
    Showers

  • Saturday

    Saturday: A 50 percent chance of showers after 7am. Mostly cloudy, with a high near 67. Breezy, with a south wind 15 to 20 mph, with gusts as high as 29 mph.

    High: 67 °F

    Chance
    Showers and
    Breezy

  • Saturday Night

    Saturday Night: A chance of showers, then showers likely and possibly a thunderstorm after 1am. Cloudy, with a low around 59. South wind around 16 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 59 °F

    Showers
    Likely

  • Sunday

    Sunday: Showers likely and possibly a thunderstorm, then showers and thunderstorms after 1pm. High near 72. Breezy, with a south wind 16 to 21 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 72 °F

    Breezy.
    Showers
    Likely then
    T-storms

  • Sunday Night

    Sunday Night: Showers and thunderstorms likely. Mostly cloudy, with a low around 38. Northwest wind 15 to 17 mph, with gusts as high as 24 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 38 °F

    T-storms
    Likely then
    Showers
    Likely

  • Monday

    Monday: Mostly cloudy, with a high near 47.

    High: 47 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Partly cloudy, with a low around 31.

    Low: 31 °F

    Partly Cloudy

Detailed Forecast

Overnight
Scattered showers and thunderstorms. Mostly cloudy, with a low around 50. South wind around 11 mph, with gusts as high as 22 mph. Chance of precipitation is 40%.
Friday
Scattered showers and thunderstorms, mainly before 7am. Mostly cloudy, then gradually becoming sunny, with a high near 81. Breezy, with a southwest wind 14 to 19 mph increasing to 21 to 26 mph in the afternoon. Winds could gust as high as 41 mph. Chance of precipitation is 30%.
Friday Night
A 20 percent chance of showers after 4am. Partly cloudy, with a low around 60. Breezy, with a south southwest wind 16 to 21 mph, with gusts as high as 32 mph.
Saturday
A 50 percent chance of showers after 7am. Mostly cloudy, with a high near 67. Breezy, with a south wind 15 to 20 mph, with gusts as high as 29 mph.
Saturday Night
A chance of showers, then showers likely and possibly a thunderstorm after 1am. Cloudy, with a low around 59. South wind around 16 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
Showers likely and possibly a thunderstorm, then showers and thunderstorms after 1pm. High near 72. Breezy, with a south wind 16 to 21 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Sunday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 38. Northwest wind 15 to 17 mph, with gusts as high as 24 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday
Mostly cloudy, with a high near 47.
Monday Night
Partly cloudy, with a low around 31.
Tuesday
Mostly sunny, with a high near 53.
Tuesday Night
Showers likely. Mostly cloudy, with a low around 44.
Wednesday
Showers. Mostly cloudy, with a high near 68. Breezy.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 45.
Thursday
A chance of showers. Partly sunny, with a high near 62.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SE Mount Zion IL
 39.75°N 88.86°W (Elev. 709 ft)
Last Update:
4:13 am CDT Mar 28, 2025
Forecast Valid:
5am CDT Mar 28, 2025-6pm CDT Apr 3, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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