Heavy Rainfall Continues in Hawaii; Severe Thunderstorms and Heavy Rainfall in the Plains and Southern Appalachians

Areas of gusty winds, heavy rain leading to flash flooding, and high surf continue across portions of Hawaii as Tropical Storm Lala continues to move away from the islands. Severe thunderstorms and heavy rainfall will shift into the southern Appalachians today. Strong to severe thunderstorms may produce large hail, scattered wind gusts, and heavy rain today across the northern and central Plains. Read More >

Current conditions at

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Partly Cloudy

82°F

28°C

Humidity 55%
Wind Speed NW 13 mph
Barometer 30.05 in
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Heat Index84°F (29°C)
Last update 17 Aug 3:50 pm CDT
Extended Forecast for

Edwardsville IL

  • Tonight

    Tonight: Patchy fog after 4am.  Otherwise, partly cloudy, with a low around 64. North wind 5 to 8 mph becoming calm  in the evening.

    Low: 64 °F

    Partly Cloudy
    then Patchy
    Fog

  • Tuesday

    Tuesday: Patchy fog before 8am.  Otherwise, partly sunny through mid morning, then becoming sunny, with a high near 86. Light and variable wind.

    High: 86 °F

    Patchy Fog
    then Sunny

  • Tuesday Night

    Tuesday Night: A 40 percent chance of showers and thunderstorms, mainly after 1am.  Increasing clouds, with a low around 69. Southeast wind 3 to 6 mph.

    Low: 69 °F

    Partly Cloudy
    then Chance
    T-storms

  • Wednesday

    Wednesday: Showers and thunderstorms likely, mainly before 7am.  Mostly cloudy, with a high near 84. South wind around 6 mph becoming northeast in the afternoon.  Chance of precipitation is 60%.

    High: 84 °F

    T-storms
    Likely

  • Wednesday Night

    Wednesday Night: A 50 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 67. Northeast wind 3 to 5 mph.

    Low: 67 °F

    Chance
    T-storms

  • Thursday

    Thursday: A 20 percent chance of showers and thunderstorms before 1pm.  Mostly sunny, with a high near 83.

    High: 83 °F

    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 64.

    Low: 64 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 84.

    High: 84 °F

    Sunny

  • Friday Night

    Friday Night: A slight chance of showers and thunderstorms.  Mostly clear, with a low around 66. Chance of precipitation is 20%.

    Low: 66 °F

    Slight Chance
    T-storms

Detailed Forecast

Tonight
Patchy fog after 4am. Otherwise, partly cloudy, with a low around 64. North wind 5 to 8 mph becoming calm in the evening.
Tuesday
Patchy fog before 8am. Otherwise, partly sunny through mid morning, then becoming sunny, with a high near 86. Light and variable wind.
Tuesday Night
A 40 percent chance of showers and thunderstorms, mainly after 1am. Increasing clouds, with a low around 69. Southeast wind 3 to 6 mph.
Wednesday
Showers and thunderstorms likely, mainly before 7am. Mostly cloudy, with a high near 84. South wind around 6 mph becoming northeast in the afternoon. Chance of precipitation is 60%.
Wednesday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 67. Northeast wind 3 to 5 mph.
Thursday
A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 83.
Thursday Night
Mostly clear, with a low around 64.
Friday
Sunny, with a high near 84.
Friday Night
A slight chance of showers and thunderstorms. Mostly clear, with a low around 66. Chance of precipitation is 20%.
Saturday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 84.
Saturday Night
Mostly clear, with a low around 64.
Sunday
Sunny, with a high near 83.
Sunday Night
Partly cloudy, with a low around 63.
Monday
Partly sunny, with a high near 84.
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ABOUT THIS FORECAST

 
Point Forecast:
Edwardsville IL
 38.81°N 89.94°W (Elev. 499 ft)
1:26 pm CDT Aug 17, 2026
4pm CDT Aug 17, 2026-6pm CDT Aug 24, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database