Current conditions at

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Partly Cloudy

79°F

26°C

Humidity 65%
Wind Speed W 9 mph
Barometer 30.03 in
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 19 Jun 12:50 pm CDT
Extended Forecast for

4 Miles N Trenton IL

Extreme Heat Watch June 21, 12:00pm until June 24, 09:00pm
Click here for hazard details and duration
Extreme Heat Watch
  • Juneteenth

    Juneteenth: Sunny, with a high near 84. Northwest wind around 8 mph.

    High: 84 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 66. Northwest wind around 5 mph becoming calm  in the evening.

    Low: 66 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 90. Light south wind increasing to 6 to 11 mph in the morning.

    High: 90 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 74. South wind 9 to 11 mph, with gusts as high as 20 mph.

    Low: 74 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 94. South wind 9 to 14 mph, with gusts as high as 21 mph.

    High: 94 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 76.

    Low: 76 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 94.

    High: 94 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 76.

    Low: 76 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 94.

    High: 94 °F

    Sunny

Detailed Forecast

Juneteenth
Sunny, with a high near 84. Northwest wind around 8 mph.
Tonight
Clear, with a low around 66. Northwest wind around 5 mph becoming calm in the evening.
Friday
Sunny, with a high near 90. Light south wind increasing to 6 to 11 mph in the morning.
Friday Night
Mostly clear, with a low around 74. South wind 9 to 11 mph, with gusts as high as 20 mph.
Saturday
Sunny, with a high near 94. South wind 9 to 14 mph, with gusts as high as 21 mph.
Saturday Night
Clear, with a low around 76.
Sunday
Sunny, with a high near 94.
Sunday Night
Mostly clear, with a low around 76.
Monday
Sunny, with a high near 94.
Monday Night
Mostly clear, with a low around 76.
Tuesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93.
Tuesday Night
Partly cloudy, with a low around 75.
Wednesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 92.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles N Trenton IL
 38.67°N 89.69°W (Elev. 502 ft)
11:52 am CDT Jun 19, 2025
1pm CDT Jun 19, 2025-6pm CDT Jun 25, 2025
 
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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