An Active Start to the Week

A slow moving and large-scale system will produce widespread rain and thunderstorms the next few days across the central and southern Plains into the Mid to Lower Mississippi Valley. Severe storms will be common across Texas through Tuesday before spreading eastward. The locally heavy rain will produce possible flooding and have a similar transition to the east through midweek. Read More >

Current conditions at

Decatur Airport (KDEC)

Lat: 39.83°NLon: 88.87°WElev: 670ft.

Fair

65°F

18°C

Humidity 45%
Wind Speed E 12 mph
Barometer 30.19 in (1022.2 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Last update 23 May 6:54 pm CDT
Extended Forecast for

Decatur IL

  • Tonight

    Tonight: Partly cloudy, with a low around 50. East northeast wind 6 to 8 mph, with gusts as high as 17 mph.

    Partly Cloudy

    Low: 50 °F

  • Tuesday

    Tuesday: Mostly sunny, with a high near 72. East wind 8 to 13 mph, with gusts as high as 21 mph.

    Mostly Sunny

    High: 72 °F

  • Tuesday
    Night

    Tuesday Night: Showers likely and possibly a thunderstorm after 1am.  Increasing clouds, with a low around 62. East wind 10 to 16 mph, with gusts as high as 23 mph.  Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Mostly Cloudy
    then Showers
    Likely

    Low: 62 °F

  • Wednesday

    Wednesday: Showers, with thunderstorms also possible after 10am.  High near 78. South southeast wind 14 to 17 mph, with gusts as high as 37 mph.  Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Showers

    High: 78 °F

  • Wednesday
    Night

    Wednesday Night: Showers likely and possibly a thunderstorm.  Mostly cloudy, with a low around 62. South wind 8 to 14 mph, with gusts as high as 24 mph.  Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    Showers
    Likely

    Low: 62 °F

  • Thursday

    Thursday: A 50 percent chance of showers and thunderstorms.  Mostly cloudy, with a high near 69. South southwest wind 7 to 10 mph, with gusts as high as 21 mph.

    Chance
    T-storms

    High: 69 °F

  • Thursday
    Night

    Thursday Night: A 30 percent chance of showers before 1am.  Mostly cloudy, with a low around 55. West wind around 8 mph, with gusts as high as 18 mph.

    Chance
    Showers

    Low: 55 °F

  • Friday

    Friday: Mostly sunny, with a high near 70.

    Mostly Sunny

    High: 70 °F

  • Friday
    Night

    Friday Night: Mostly clear, with a low around 55.

    Mostly Clear

    Low: 55 °F

Detailed Forecast

Tonight
Partly cloudy, with a low around 50. East northeast wind 6 to 8 mph, with gusts as high as 17 mph.
Tuesday
Mostly sunny, with a high near 72. East wind 8 to 13 mph, with gusts as high as 21 mph.
Tuesday Night
Showers likely and possibly a thunderstorm after 1am. Increasing clouds, with a low around 62. East wind 10 to 16 mph, with gusts as high as 23 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday
Showers, with thunderstorms also possible after 10am. High near 78. South southeast wind 14 to 17 mph, with gusts as high as 37 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 62. South wind 8 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Thursday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 69. South southwest wind 7 to 10 mph, with gusts as high as 21 mph.
Thursday Night
A 30 percent chance of showers before 1am. Mostly cloudy, with a low around 55. West wind around 8 mph, with gusts as high as 18 mph.
Friday
Mostly sunny, with a high near 70.
Friday Night
Mostly clear, with a low around 55.
Saturday
Mostly sunny, with a high near 79.
Saturday Night
Partly cloudy, with a low around 64.
Sunday
Mostly sunny, with a high near 84.
Sunday Night
Partly cloudy, with a low around 69.
Memorial Day
Mostly sunny, with a high near 87.
Click Map For Forecast
Point Forecast:
Decatur IL
 39.86°N 88.94°W (Elev. 682 ft)
6:42 pm CDT May 23, 2022
7pm CDT May 23, 2022-6pm CDT May 30, 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