Excessive Rainfall Potential for the Southeast; Heat Expands for Center of the Nation; Critical Fire Weather for Pacific Northwest

Flash flooding threatens areas from the Tennessee Valley to the Carolinas as storms repeat along a stalled front. Monsoonal storms may trigger flooding in the Southwest. Dangerous heat expands across the Desert Southwest, Plains, mid-Mississippi Valley and Southern Tier. Critical fire weather for interior Pacific Northwest. Cooler, drier air brings brief relief to the Great Lakes and Northeast. Read More >

Current conditions at

Decatur Airport (KDEC)

Lat: 39.83°NLon: 88.87°WElev: 670ft.

Overcast

74°F

23°C

Humidity 64%
Wind Speed SW 5 mph
Barometer 30.09 in (1018.5 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 24 Jul 6:54 pm CDT
Extended Forecast for

3 Miles NNW Oakley IL

Heat Advisory July 26, 12:00pm until July 27, 09:00pm
Click here for hazard details and duration
Heat Advisory
  • Tonight

    Tonight: Isolated showers after midnight.  Mostly cloudy, with a low around 63. Light south wind.  Chance of precipitation is 20%.

    Low: 63 °F

    Mostly Cloudy
    then Isolated
    Showers

  • Saturday

    Saturday: Isolated showers before 1pm.  Mostly cloudy, with a high near 82. South wind 3 to 8 mph.  Chance of precipitation is 20%.

    High: 82 °F

    Isolated
    Showers

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 68. South wind around 5 mph becoming calm  in the evening.

    Low: 68 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 91. Heat index values as high as 102. Calm wind becoming southwest 5 to 7 mph in the afternoon.

    High: 91 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 73. South southwest wind 5 to 8 mph.

    Low: 73 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 93. Southwest wind 8 to 15 mph, with gusts as high as 23 mph.

    High: 93 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 74. Southwest wind 8 to 14 mph becoming northwest after midnight. Winds could gust as high as 20 mph.

    Low: 74 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 91.

    High: 91 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 68.

    Low: 68 °F

    Mostly Clear

Detailed Forecast

Tonight
Isolated showers after midnight. Mostly cloudy, with a low around 63. Light south wind. Chance of precipitation is 20%.
Saturday
Isolated showers before 1pm. Mostly cloudy, with a high near 82. South wind 3 to 8 mph. Chance of precipitation is 20%.
Saturday Night
Partly cloudy, with a low around 68. South wind around 5 mph becoming calm in the evening.
Sunday
Mostly sunny, with a high near 91. Heat index values as high as 102. Calm wind becoming southwest 5 to 7 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 73. South southwest wind 5 to 8 mph.
Monday
Mostly sunny, with a high near 93. Southwest wind 8 to 15 mph, with gusts as high as 23 mph.
Monday Night
Mostly clear, with a low around 74. Southwest wind 8 to 14 mph becoming northwest after midnight. Winds could gust as high as 20 mph.
Tuesday
Mostly sunny, with a high near 91.
Tuesday Night
Mostly clear, with a low around 68.
Wednesday
Sunny, with a high near 89.
Wednesday Night
Mostly clear, with a low around 67.
Thursday
Mostly sunny, with a high near 88.
Thursday Night
Mostly clear, with a low around 68.
Friday
Mostly sunny, with a high near 88.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNW Oakley IL
 39.88°N 88.85°W (Elev. 663 ft)
5:36 pm CDT Jul 24, 2026
7pm CDT Jul 24, 2026-6pm CDT Jul 31, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database