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Hazardous Weather Conditions

Current conditions at

Decatur Airport (KDEC)

Lat: 39.83°NLon: 88.87°WElev: 670ft.

Fair

60°F

16°C

Humidity 90%
Wind Speed Calm
Barometer 29.95 in (1013.9 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 21 Jun 1:54 am CDT
Extended Forecast for

Long Creek IL

Flood Watch June 21, 07:00am until June 22, 01:00am
Click here for hazard details and duration
Flood Watch

  • Overnight

    Overnight: Partly cloudy, with a low around 58. East wind 3 to 5 mph.

    Low: 58 °F

    Partly Cloudy

  • Sunday

    Sunday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1pm. Some of the storms could produce heavy rainfall. High near 74. East southeast wind 7 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.

    High: 74 °F

    Chance
    Showers then
    Heavy Rain

  • Sunday Night

    Sunday Night: Showers and thunderstorms before 1am, then a chance of showers. Low around 59. South wind 11 to 15 mph becoming northwest after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 59 °F

    T-storms then
    Chance
    Showers

  • Monday

    Monday: Mostly cloudy, with a high near 73. North wind around 15 mph, with gusts as high as 22 mph.

    High: 73 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Partly cloudy, with a low around 53. North northeast wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 53 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 77. North northeast wind 3 to 6 mph.

    High: 77 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 57. Light and variable wind.

    Low: 57 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 79.

    High: 79 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 60.

    Low: 60 °F

    Partly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 58. East wind 3 to 5 mph.
Sunday
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1pm. Some of the storms could produce heavy rainfall. High near 74. East southeast wind 7 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.
Sunday Night
Showers and thunderstorms before 1am, then a chance of showers. Low around 59. South wind 11 to 15 mph becoming northwest after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Monday
Mostly cloudy, with a high near 73. North wind around 15 mph, with gusts as high as 22 mph.
Monday Night
Partly cloudy, with a low around 53. North northeast wind 5 to 10 mph, with gusts as high as 15 mph.
Tuesday
Sunny, with a high near 77. North northeast wind 3 to 6 mph.
Tuesday Night
Mostly clear, with a low around 57. Light and variable wind.
Wednesday
Mostly sunny, with a high near 79.
Wednesday Night
Partly cloudy, with a low around 60.
Thursday
Mostly sunny, with a high near 78.
Thursday Night
Mostly clear, with a low around 59.
Friday
A chance of showers. Mostly sunny, with a high near 79.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 62.
Saturday
A chance of showers and thunderstorms. Mostly sunny, with a high near 82.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Long Creek IL
 39.81°N 88.83°W (Elev. 650 ft)
Last Update:
1:26 am CDT Jun 21, 2026
Forecast Valid:
2am CDT Jun 21, 2026-6pm CDT Jun 27, 2026
 
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