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

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Fair

50°F

10°C

Humidity 37%
Wind Speed NE 13 mph
Barometer 30.38 in
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Wind Chill45°F (7°C)
Last update 23 Mar 5:50 pm CDT
Extended Forecast for

Highland ILSimilar City Names

  • Tonight

    Tonight: Mostly cloudy, with a low around 35. East wind 5 to 11 mph, with gusts as high as 25 mph.

    Low: 35 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 61. Southeast wind 5 to 10 mph.

    High: 61 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 42. Southeast wind 6 to 9 mph.

    Low: 42 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 74. South wind 5 to 13 mph.

    High: 74 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 61. South wind around 10 mph.

    Low: 61 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 87.

    High: 87 °F

    Sunny

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am. Low around 42. Breezy. Chance of precipitation is 80%.

    Low: 42 °F

    Chance
    T-storms then
    Showers and
    Breezy

  • Friday

    Friday: A chance of showers before 1pm, then a slight chance of rain after 1pm. Mostly cloudy, with a high near 52. Breezy. Chance of precipitation is 40%.

    High: 52 °F

    Chance
    Showers and
    Breezy

  • Friday Night

    Friday Night: Partly cloudy, with a low around 30.

    Low: 30 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 35. East wind 5 to 11 mph, with gusts as high as 25 mph.
Tuesday
Mostly sunny, with a high near 61. Southeast wind 5 to 10 mph.
Tuesday Night
Mostly cloudy, with a low around 42. Southeast wind 6 to 9 mph.
Wednesday
Mostly sunny, with a high near 74. South wind 5 to 13 mph.
Wednesday Night
Mostly clear, with a low around 61. South wind around 10 mph.
Thursday
Sunny, with a high near 87.
Thursday Night
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am. Low around 42. Breezy. Chance of precipitation is 80%.
Friday
A chance of showers before 1pm, then a slight chance of rain after 1pm. Mostly cloudy, with a high near 52. Breezy. Chance of precipitation is 40%.
Friday Night
Partly cloudy, with a low around 30.
Saturday
Sunny, with a high near 55.
Saturday Night
Mostly clear, with a low around 36.
Sunday
Mostly sunny, with a high near 62.
Sunday Night
Mostly cloudy, with a low around 47.
Monday
A 20 percent chance of rain. Mostly sunny, with a high near 69.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Highland ILSimilar City Names
 38.74°N 89.69°W (Elev. 548 ft)
Last Update:
5:21 pm CDT Mar 23, 2026
Forecast Valid:
6pm CDT Mar 23, 2026-6pm CDT Mar 30, 2026
 
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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