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

Hazardous Weather Conditions

Current conditions at

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Partly Cloudy

79°F

26°C

Humidity 74%
Wind Speed Calm
Barometer 29.84 in
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 20 Sep 8:50 pm CDT
Extended Forecast for

2 Miles WSW Alton IL

  • Tonight

    Tonight: Partly cloudy, with a low around 71. Light east wind.

    Low: 71 °F

    Partly Cloudy

  • Saturday

    Saturday: A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 89. Light and variable wind becoming southwest 5 to 9 mph in the morning. Chance of precipitation is 30%.

    High: 89 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 70. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%.

    Low: 70 °F

    Chance
    T-storms then
    Showers
    Likely

  • Sunday

    Sunday: Showers and possibly a thunderstorm. High near 84. Calm wind becoming southwest 5 to 8 mph in the morning. Chance of precipitation is 90%.

    High: 84 °F

    Showers

  • Sunday Night

    Sunday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 66. North wind 3 to 6 mph. Chance of precipitation is 70%.

    Low: 66 °F

    Showers
    Likely

  • Monday

    Monday: Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 78. Chance of precipitation is 70%.

    High: 78 °F

    Showers
    Likely

  • Monday Night

    Monday Night: A 40 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 61.

    Low: 61 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: Partly sunny, with a high near 74.

    High: 74 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 57.

    Low: 57 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 71. Light east wind.
Saturday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 89. Light and variable wind becoming southwest 5 to 9 mph in the morning. Chance of precipitation is 30%.
Saturday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 70. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%.
Sunday
Showers and possibly a thunderstorm. High near 84. Calm wind becoming southwest 5 to 8 mph in the morning. Chance of precipitation is 90%.
Sunday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 66. North wind 3 to 6 mph. Chance of precipitation is 70%.
Monday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 78. Chance of precipitation is 70%.
Monday Night
A 40 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 61.
Tuesday
Partly sunny, with a high near 74.
Tuesday Night
Mostly cloudy, with a low around 57.
Wednesday
Partly sunny, with a high near 75.
Wednesday Night
Partly cloudy, with a low around 57.
Thursday
A 20 percent chance of showers. Mostly sunny, with a high near 76.
Thursday Night
A 20 percent chance of showers. Partly cloudy, with a low around 57.
Friday
A 20 percent chance of showers. Mostly sunny, with a high near 77.
Click Map For Forecast
Disclaimer
Map Legend

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WSW Alton IL
 38.88°N 90.19°W (Elev. 407 ft)
Last Update:
8:22 pm CDT Sep 20, 2024
Forecast Valid:
9pm CDT Sep 20, 2024-6pm CDT Sep 27, 2024
 
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