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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 86%
Wind Speed Calm
Barometer 29.95 in (1013.7 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Last update 21 Jun 3:54 am CDT
Extended Forecast for

Weldon IL

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

  • Today

    Today: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1pm. Some of the storms could produce heavy rainfall. High near 72. East southeast wind 6 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. New rainfall amounts between three quarters and one inch possible.

    High: 72 °F

    Chance
    Showers then
    Heavy Rain

  • Tonight

    Tonight: Showers and possibly a thunderstorm before 10pm, then a chance of showers. Low around 58. Southeast wind 13 to 16 mph becoming north northwest after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 58 °F

    T-storms then
    Chance
    Showers

  • Monday

    Monday: A 20 percent chance of showers before 8am. Cloudy, then gradually becoming mostly sunny, with a high near 73. North wind 16 to 18 mph, with gusts as high as 24 mph.

    High: 73 °F

    Slight Chance
    Showers then
    Partly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 53. North northeast wind 7 to 13 mph, with gusts as high as 16 mph.

    Low: 53 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 77. North northeast wind 5 to 7 mph.

    High: 77 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 57. Northeast wind around 5 mph becoming light and variable in the evening.

    Low: 57 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 79. South southeast wind 5 to 10 mph becoming west southwest in the afternoon.

    High: 79 °F

    Mostly Sunny

  • Wednesday Night

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

    Low: 60 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 78.

    High: 78 °F

    Mostly Sunny

Detailed Forecast

Today
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1pm. Some of the storms could produce heavy rainfall. High near 72. East southeast wind 6 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. New rainfall amounts between three quarters and one inch possible.
Tonight
Showers and possibly a thunderstorm before 10pm, then a chance of showers. Low around 58. Southeast wind 13 to 16 mph becoming north northwest after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Monday
A 20 percent chance of showers before 8am. Cloudy, then gradually becoming mostly sunny, with a high near 73. North wind 16 to 18 mph, with gusts as high as 24 mph.
Monday Night
Mostly clear, with a low around 53. North northeast wind 7 to 13 mph, with gusts as high as 16 mph.
Tuesday
Sunny, with a high near 77. North northeast wind 5 to 7 mph.
Tuesday Night
Mostly clear, with a low around 57. Northeast wind around 5 mph becoming light and variable in the evening.
Wednesday
Mostly sunny, with a high near 79. South southeast wind 5 to 10 mph becoming west southwest in the afternoon.
Wednesday Night
Partly cloudy, with a low around 60.
Thursday
Mostly sunny, with a high near 78.
Thursday Night
Partly cloudy, with a low around 58.
Friday
Mostly sunny, with a high near 79.
Friday Night
A chance of showers and thunderstorms. Partly 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:
Weldon IL
 40.12°N 88.75°W (Elev. 709 ft)
Last Update:
3:56 am CDT Jun 21, 2026
Forecast Valid:
4am CDT Jun 21, 2026-6pm CDT Jun 27, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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