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

Hazardous Weather Conditions

Current conditions at

Decatur Airport (KDEC)

Lat: 39.83°NLon: 88.87°WElev: 670ft.

Mostly Cloudy

79°F

26°C

Humidity 88%
Wind Speed NW 5 mph
Barometer 30.03 in (1016.3 mb)
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 16 Aug 9:54 am CDT
Extended Forecast for

2 Miles SSW Hammond IL

  • Today

    Today: A 30 percent chance of showers and thunderstorms, mainly before 11am. Partly sunny, with a high near 85. West wind 8 to 10 mph, with gusts as high as 16 mph.

    High: 85 °F

    Chance
    T-storms

  • Tonight

    Tonight: A 40 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 67. Northwest wind around 7 mph.

    Low: 67 °F

    Chance
    T-storms

  • Monday

    Monday: Mostly sunny, with a high near 82. North northwest wind 6 to 9 mph.

    High: 82 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 62. North northwest wind around 6 mph becoming calm in the evening.

    Low: 62 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 84. Calm wind becoming west southwest around 5 mph in the afternoon.

    High: 84 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A 50 percent chance of showers after 1am. Increasing clouds, with a low around 67. Light south wind.

    Low: 67 °F

    Partly Cloudy
    then Chance
    Showers

  • Wednesday

    Wednesday: A 50 percent chance of showers. Partly sunny, with a high near 81. West wind 5 to 7 mph becoming north in the afternoon.

    High: 81 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 61.

    Low: 61 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 78.

    High: 78 °F

    Mostly Sunny

Detailed Forecast

Today
A 30 percent chance of showers and thunderstorms, mainly before 11am. Partly sunny, with a high near 85. West wind 8 to 10 mph, with gusts as high as 16 mph.
Tonight
A 40 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 67. Northwest wind around 7 mph.
Monday
Mostly sunny, with a high near 82. North northwest wind 6 to 9 mph.
Monday Night
Mostly clear, with a low around 62. North northwest wind around 6 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 84. Calm wind becoming west southwest around 5 mph in the afternoon.
Tuesday Night
A 50 percent chance of showers after 1am. Increasing clouds, with a low around 67. Light south wind.
Wednesday
A 50 percent chance of showers. Partly sunny, with a high near 81. West wind 5 to 7 mph becoming north in the afternoon.
Wednesday Night
Partly cloudy, with a low around 61.
Thursday
Mostly sunny, with a high near 78.
Thursday Night
Partly cloudy, with a low around 59.
Friday
Mostly sunny, with a high near 79.
Friday Night
Partly cloudy, with a low around 61.
Saturday
Sunny, with a high near 81.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSW Hammond IL
 39.76°N 88.6°W (Elev. 659 ft)
Last Update:
10:22 am CDT Aug 16, 2026
Forecast Valid:
10am CDT Aug 16, 2026-6pm CDT Aug 22, 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