National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Dangerous Heat in the West; Flash Flooding Possible Across the Southern US

Dangerous heat is expected across areas in Texas and from Washington through California. Several daily high temperature records are expected to be either tied or broken in the West. Monsoonal showers and thunderstorms may result in flash flooding and debris flows over the Southwestern U.S. through Friday. Locally heavy rain is expected from thunderstorms in the Southeast. Read More >

Current conditions at

Decatur Airport (KDEC)

Lat: 39.83°NLon: 88.87°WElev: 670ft.

Fair

58°F

14°C

Humidity 100%
Wind Speed Calm
Barometer 30.10 in (1019.0 mb)
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Last update 17 Aug 5:54 am CDT
Extended Forecast for

Decatur IL

  • Today

    Today: A chance of sprinkles after 4pm. Sunny, with a high near 83. Northeast wind 5 to 8 mph.

    Chance
    Sprinkles

    High: 83 °F

  • Tonight

    Tonight: Mostly clear, with a low around 60. Northeast wind 3 to 5 mph.

    Mostly Clear

    Low: 60 °F

  • Thursday

    Thursday: Sunny, with a high near 83. Light east wind.

    Sunny

    High: 83 °F

  • Thursday
    Night

    Thursday Night: Partly cloudy, with a low around 61. Calm wind.

    Partly Cloudy

    Low: 61 °F

  • Friday

    Friday: Mostly sunny, with a high near 83. Calm wind becoming south around 6 mph in the morning.

    Mostly Sunny

    High: 83 °F

  • Friday
    Night

    Friday Night: Partly cloudy, with a low around 63. South southeast wind 3 to 6 mph.

    Partly Cloudy

    Low: 63 °F

  • Saturday

    Saturday: A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 83. South wind 5 to 9 mph, with gusts as high as 16 mph. Chance of precipitation is 40%.

    Chance
    Showers then
    Chance
    T-storms

    High: 83 °F

  • Saturday
    Night

    Saturday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 63. Chance of precipitation is 50%.

    Chance
    T-storms

    Low: 63 °F

  • Sunday

    Sunday: A chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 81. Chance of precipitation is 40%.

    Chance
    Showers then
    Chance
    T-storms

    High: 81 °F

Detailed Forecast

Today
A chance of sprinkles after 4pm. Sunny, with a high near 83. Northeast wind 5 to 8 mph.
Tonight
Mostly clear, with a low around 60. Northeast wind 3 to 5 mph.
Thursday
Sunny, with a high near 83. Light east wind.
Thursday Night
Partly cloudy, with a low around 61. Calm wind.
Friday
Mostly sunny, with a high near 83. Calm wind becoming south around 6 mph in the morning.
Friday Night
Partly cloudy, with a low around 63. South southeast wind 3 to 6 mph.
Saturday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 83. South wind 5 to 9 mph, with gusts as high as 16 mph. Chance of precipitation is 40%.
Saturday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 63. Chance of precipitation is 50%.
Sunday
A chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 81. Chance of precipitation is 40%.
Sunday Night
A 30 percent chance of showers before 1am. Partly cloudy, with a low around 64.
Monday
Partly sunny, with a high near 81.
Monday Night
Partly cloudy, with a low around 64.
Tuesday
Mostly sunny, with a high near 83.
Click Map For Forecast
Disclaimer
Map Legend
Point Forecast:
Decatur IL
 39.84°N 88.94°W (Elev. 692 ft)
Last Update:
4:40 am CDT Aug 17, 2022
Forecast Valid:
6am CDT Aug 17, 2022-6pm CDT Aug 23, 2022
 
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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