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Current conditions at

Decatur Airport (KDEC)

Lat: 39.83°NLon: 88.87°WElev: 670ft.

Fair

59°F

15°C

Humidity 67%
Wind Speed N 8 mph
Barometer 29.99 in (1015.2 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 7 Oct 11:54 pm CDT
Extended Forecast for

Hammond IL

  • Overnight

    Overnight: Mostly clear, with a low around 53. North northwest wind 3 to 5 mph.

    Low: 53 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 80. Calm wind becoming northwest 5 to 7 mph in the afternoon.

    High: 80 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 54. North wind around 5 mph becoming light and variable in the evening.

    Low: 54 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 84. Southeast wind 5 to 11 mph, with gusts as high as 17 mph.

    High: 84 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 60. South southeast wind around 9 mph.

    Low: 60 °F

    Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 86. South wind 8 to 11 mph, with gusts as high as 16 mph.

    High: 86 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Showers likely. Mostly cloudy, with a low around 57. East wind 6 to 9 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 57 °F

    Showers
    Likely

  • Sunday

    Sunday: Partly sunny, with a high near 75.

    High: 75 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 56.

    Low: 56 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 53. North northwest wind 3 to 5 mph.
Thursday
Sunny, with a high near 80. Calm wind becoming northwest 5 to 7 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 54. North wind around 5 mph becoming light and variable in the evening.
Friday
Sunny, with a high near 84. Southeast wind 5 to 11 mph, with gusts as high as 17 mph.
Friday Night
Clear, with a low around 60. South southeast wind around 9 mph.
Saturday
Mostly sunny, with a high near 86. South wind 8 to 11 mph, with gusts as high as 16 mph.
Saturday Night
Showers likely. Mostly cloudy, with a low around 57. East wind 6 to 9 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday
Partly sunny, with a high near 75.
Sunday Night
Partly cloudy, with a low around 56.
Columbus Day
Mostly sunny, with a high near 85.
Monday Night
Partly cloudy, with a low around 54.
Tuesday
Mostly sunny, with a high near 70.
Tuesday Night
Partly cloudy, with a low around 44.
Wednesday
Sunny, with a high near 68.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Hammond IL
 39.81°N 88.6°W (Elev. 673 ft)
Last Update:
12:36 am CDT Oct 8, 2026
Forecast Valid:
12am CDT Oct 8, 2026-6pm CDT Oct 14, 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