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Hazardous Weather Conditions

Current conditions at

Decatur Airport (KDEC)

Lat: 39.83°NLon: 88.87°WElev: 670ft.

Mostly Cloudy

74°F

23°C

Humidity 85%
Wind Speed W 12 mph
Barometer 29.87 in (1011.1 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Last update 15 Oct 7:54 pm CDT
Extended Forecast for

Latham IL

  • Tonight

    Tonight: A chance of showers and thunderstorms before midnight, then a slight chance of showers between midnight and 1am. Mostly cloudy, with a low around 46. Breezy, with a west northwest wind 13 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 40%.

    Low: 46 °F

    Chance
    Showers and
    Breezy

  • Friday

    Friday: A 30 percent chance of showers, mainly after 4pm. Partly sunny, with a high near 55. Breezy, with a northwest wind 21 to 23 mph, with gusts as high as 33 mph.

    High: 55 °F

    Breezy.
    Partly Sunny
    then Chance
    Showers

  • Friday Night

    Friday Night: Partly cloudy, with a low around 35. North wind 10 to 18 mph, with gusts as high as 26 mph.

    Low: 35 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 58. North wind around 5 mph becoming calm in the morning.

    High: 58 °F

    Sunny

  • Saturday Night

    Saturday Night: Areas of frost after 4am. Otherwise, clear, with a low around 35. Calm wind becoming south southeast around 5 mph after midnight.

    Low: 35 °F

    Clear then
    Areas Frost

  • Sunday

    Sunday: Areas of frost before 8am. Otherwise, sunny, with a high near 68. South wind 6 to 10 mph, with gusts as high as 15 mph.

    High: 68 °F

    Areas Frost
    then Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 38. South wind 3 to 6 mph.

    Low: 38 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 71.

    High: 71 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 43.

    Low: 43 °F

    Partly Cloudy

Detailed Forecast

Tonight
A chance of showers and thunderstorms before midnight, then a slight chance of showers between midnight and 1am. Mostly cloudy, with a low around 46. Breezy, with a west northwest wind 13 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 40%.
Friday
A 30 percent chance of showers, mainly after 4pm. Partly sunny, with a high near 55. Breezy, with a northwest wind 21 to 23 mph, with gusts as high as 33 mph.
Friday Night
Partly cloudy, with a low around 35. North wind 10 to 18 mph, with gusts as high as 26 mph.
Saturday
Sunny, with a high near 58. North wind around 5 mph becoming calm in the morning.
Saturday Night
Areas of frost after 4am. Otherwise, clear, with a low around 35. Calm wind becoming south southeast around 5 mph after midnight.
Sunday
Areas of frost before 8am. Otherwise, sunny, with a high near 68. South wind 6 to 10 mph, with gusts as high as 15 mph.
Sunday Night
Mostly clear, with a low around 38. South wind 3 to 6 mph.
Monday
Mostly sunny, with a high near 71.
Monday Night
Partly cloudy, with a low around 43.
Tuesday
Mostly sunny, with a high near 76.
Tuesday Night
Partly cloudy, with a low around 46.
Wednesday
Sunny, with a high near 78.
Wednesday Night
Mostly clear, with a low around 49.
Thursday
Sunny, with a high near 79.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Latham IL
 39.96°N 89.16°W (Elev. 607 ft)
Last Update:
8:01 pm CDT Oct 15, 2026
Forecast Valid:
8pm CDT Oct 15, 2026-6pm CDT Oct 22, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation