Extreme Heat in the Southwest; Severe Weather in the Northern Plains; Heavy Rain in the East

Extreme heat continues across the Southwest as temperatures may top 120 degrees. The heat may expand across the West and south-central U.S. into the middle of the month. Severe thunderstorms capable of severe wind gusts and large hail will be the primary hazards today across the northern Plains into the upper Midwest. Rainfall could be locally heavy across the Eastern U.S. today. Read More >

Current conditions at

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Fair

67°F

19°C

Humidity 96%
Wind Speed Calm
Barometer 30.01 in
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Last update 4 Aug 12:55 am CDT
Extended Forecast for

3 Miles ENE Rockbridge IL

  • Overnight

    Overnight: Clear, with a low around 63. Light southeast wind.

    Low: 63 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 87. Calm wind becoming south around 5 mph.

    High: 87 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 65. Calm wind becoming southeast around 5 mph.

    Low: 65 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 88. South wind 3 to 6 mph.

    High: 88 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am.  Mostly cloudy, with a low around 66. Southeast wind 3 to 6 mph.  Chance of precipitation is 70%.

    Low: 66 °F

    Chance
    T-storms then
    Showers
    Likely

  • Thursday

    Thursday: Showers likely and possibly a thunderstorm before 1pm.  Mostly cloudy, with a high near 82. Chance of precipitation is 70%.

    High: 82 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: A slight chance of showers and thunderstorms.  Mostly cloudy, with a low around 64. Chance of precipitation is 20%.

    Low: 64 °F

    Slight Chance
    T-storms

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms after 1pm.  Mostly sunny, with a high near 84.

    High: 84 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Friday Night

    Friday Night: A slight chance of showers and thunderstorms.  Partly cloudy, with a low around 64. Chance of precipitation is 20%.

    Low: 64 °F

    Slight Chance
    T-storms

Detailed Forecast

Overnight
Clear, with a low around 63. Light southeast wind.
Tuesday
Sunny, with a high near 87. Calm wind becoming south around 5 mph.
Tuesday Night
Mostly clear, with a low around 65. Calm wind becoming southeast around 5 mph.
Wednesday
Mostly sunny, with a high near 88. South wind 3 to 6 mph.
Wednesday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 66. Southeast wind 3 to 6 mph. Chance of precipitation is 70%.
Thursday
Showers likely and possibly a thunderstorm before 1pm. Mostly cloudy, with a high near 82. Chance of precipitation is 70%.
Thursday Night
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 64. Chance of precipitation is 20%.
Friday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 84.
Friday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 64. Chance of precipitation is 20%.
Saturday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 86.
Saturday Night
Mostly clear, with a low around 68.
Sunday
Sunny, with a high near 90.
Sunday Night
Mostly clear, with a low around 70.
Monday
Mostly sunny, with a high near 90.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles ENE Rockbridge IL
 39.28°N 90.17°W (Elev. 551 ft)
10:21 pm CDT Aug 3, 2026
1am CDT Aug 4, 2026-6pm CDT Aug 10, 2026
 
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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