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.

Thunderstorm in Vicinity Rain

68°F

20°C

Humidity 100%
Wind Speed Vrbl 3 mph
Barometer 29.87 in
Dewpoint 68°F (20°C)
Visibility 5.00 mi
Last update 23 Sep 6:50 pm CDT
Extended Forecast for

East Alton IL

  • Tonight

    Tonight: Showers and possibly a thunderstorm, mainly before 2am, then a chance of showers and thunderstorms after 2am. Patchy fog before 4am, then patchy fog after 5am. Low around 65. East wind around 6 mph becoming light and variable. Chance of precipitation is 80%.

    Low: 65 °F

    T-storms and
    Patchy Fog
    then Showers
    Likely and
    Patchy Fog

  • Tuesday

    Tuesday: A chance of showers and thunderstorms before 11am, then a slight chance of showers between 11am and 4pm, then a slight chance of showers and thunderstorms after 4pm. Patchy fog between 7am and 9am. Otherwise, cloudy, with a high near 72. West wind 7 to 10 mph. Chance of precipitation is 30%.

    High: 72 °F

    Chance
    T-storms and
    Patchy Fog

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 57. Northwest wind around 6 mph becoming calm in the evening.

    Low: 57 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 77. Calm wind becoming north around 6 mph in the afternoon.

    High: 77 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 60. North wind around 5 mph becoming calm in the evening.

    Low: 60 °F

    Partly Cloudy

  • Thursday

    Thursday: A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 76. Chance of precipitation is 60%.

    High: 76 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 65. Chance of precipitation is 70%.

    Low: 65 °F

    Showers
    Likely

  • Friday

    Friday: Showers likely. Mostly cloudy, with a high near 74. Chance of precipitation is 70%.

    High: 74 °F

    Showers
    Likely

  • Friday Night

    Friday Night: Showers likely, mainly before 1am. Mostly cloudy, with a low around 63. Chance of precipitation is 70%.

    Low: 63 °F

    Showers
    Likely

Detailed Forecast

Tonight
Showers and possibly a thunderstorm, mainly before 2am, then a chance of showers and thunderstorms after 2am. Patchy fog before 4am, then patchy fog after 5am. Low around 65. East wind around 6 mph becoming light and variable. Chance of precipitation is 80%.
Tuesday
A chance of showers and thunderstorms before 11am, then a slight chance of showers between 11am and 4pm, then a slight chance of showers and thunderstorms after 4pm. Patchy fog between 7am and 9am. Otherwise, cloudy, with a high near 72. West wind 7 to 10 mph. Chance of precipitation is 30%.
Tuesday Night
Mostly cloudy, with a low around 57. Northwest wind around 6 mph becoming calm in the evening.
Wednesday
Mostly sunny, with a high near 77. Calm wind becoming north around 6 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 60. North wind around 5 mph becoming calm in the evening.
Thursday
A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 76. Chance of precipitation is 60%.
Thursday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 65. Chance of precipitation is 70%.
Friday
Showers likely. Mostly cloudy, with a high near 74. Chance of precipitation is 70%.
Friday Night
Showers likely, mainly before 1am. Mostly cloudy, with a low around 63. Chance of precipitation is 70%.
Saturday
Showers likely, mainly after 1pm. Mostly cloudy, with a high near 74. Chance of precipitation is 70%.
Saturday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 61.
Sunday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 75. Chance of precipitation is 60%.
Sunday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 62.
Monday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 77.
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ABOUT THIS FORECAST

 
Point Forecast:
East Alton IL
 38.88°N 90.13°W (Elev. 433 ft)
Last Update:
5:52 pm CDT Sep 23, 2024
Forecast Valid:
7pm CDT Sep 23, 2024-6pm CDT Sep 30, 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