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

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Fair

59°F

15°C

Humidity 27%
Wind Speed SW 5 mph
Barometer 30.16 in (1021.6 mb)
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Last update 12 Jan 3:53 pm CST
Extended Forecast for

Hecker IL

  • Tonight

    Tonight: Mostly cloudy during the early evening, then becoming clear, with a low around 36. South wind 6 to 8 mph.

    Low: 36 °F

    Clear

  • Tuesday

    Tuesday: Increasing clouds, with a high near 63. South wind 8 to 13 mph becoming west in the afternoon. Winds could gust as high as 25 mph.

    High: 63 °F

    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: A 30 percent chance of rain, mainly between 7pm and 11pm. Mostly cloudy, with a low around 38. West wind 7 to 13 mph, with gusts as high as 21 mph.

    Low: 38 °F

    Chance Rain

  • Wednesday

    Wednesday: Partly sunny, with a temperature rising to near 42 by 11am, then falling to around 34 during the remainder of the day. Breezy, with a northwest wind 13 to 22 mph, with gusts as high as 32 mph.

    High: 42 °F⇓

    Partly Sunny
    and Breezy

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 17. North wind 9 to 17 mph, with gusts as high as 26 mph.

    Low: 17 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 32.

    High: 32 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 24.

    Low: 24 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 44.

    High: 44 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 20.

    Low: 20 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy during the early evening, then becoming clear, with a low around 36. South wind 6 to 8 mph.
Tuesday
Increasing clouds, with a high near 63. South wind 8 to 13 mph becoming west in the afternoon. Winds could gust as high as 25 mph.
Tuesday Night
A 30 percent chance of rain, mainly between 7pm and 11pm. Mostly cloudy, with a low around 38. West wind 7 to 13 mph, with gusts as high as 21 mph.
Wednesday
Partly sunny, with a temperature rising to near 42 by 11am, then falling to around 34 during the remainder of the day. Breezy, with a northwest wind 13 to 22 mph, with gusts as high as 32 mph.
Wednesday Night
Mostly clear, with a low around 17. North wind 9 to 17 mph, with gusts as high as 26 mph.
Thursday
Mostly sunny, with a high near 32.
Thursday Night
Mostly cloudy, with a low around 24.
Friday
Partly sunny, with a high near 44.
Friday Night
Mostly cloudy, with a low around 20.
Saturday
Partly sunny, with a high near 31.
Saturday Night
Partly cloudy, with a low around 11.
Sunday
Mostly sunny, with a high near 27.
Sunday Night
Mostly clear, with a low around 13.
M.L.King Day
Mostly sunny, with a high near 36.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Hecker IL
 38.32°N 89.99°W (Elev. 449 ft)
Last Update:
4:46 pm CST Jan 12, 2026
Forecast Valid:
5pm CST Jan 12, 2026-6pm CST Jan 19, 2026
 
Forecast Discussion
 
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Additional Resources

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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