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

Lala Approaching Hawaii; Flash Flooding Risks; Excessive Heat

Lala, may become a hurricane, is expected to impact Hawaii this weekend. Heavy rainfall, strong winds, dangerous surf and localized flooding are expected. Heavy rainfall and flash flooding concerns from the mid-Mississippi Valley, Ohio Valley into the central Appalachians continues, with the threat shifting toward the mid-Atlantic later this weekend. Record heat continues for areas of the South. Read More >

Hazardous Weather Conditions

Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Fair

90°F

32°C

Humidity 66%
Wind Speed S 7 mph
Barometer 29.98 in (1014.6 mb)
Dewpoint 77°F (25°C)
Visibility 10.00 mi
Heat Index103°F (39°C)
Last update 14 Aug 6:53 pm CDT
Extended Forecast for

Trenton ILSimilar City Names

Extreme Heat Warning August 14, 07:45pm until August 16, 09:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning August 14, 07:45pm until August 16, 09:00pm

    NOW until 9:00pm Sun

    Extreme Heat Warning

  • Tonight

    Low: 76 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny and hot, with a high near 97. Heat index values as high as 107. Southwest wind 3 to 5 mph.

    High: 97 °F

    Hot

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 76. South wind 3 to 5 mph.

    Low: 76 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 95. Heat index values as high as 107. West wind 3 to 6 mph.

    High: 95 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 72. North wind 3 to 5 mph. Chance of precipitation is 50%.

    Low: 72 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Monday

    Monday: A slight chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 86. Chance of precipitation is 20%.

    High: 86 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Monday Night

    Monday Night: Partly cloudy, with a low around 67.

    Low: 67 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 88.

    High: 88 °F

    Mostly Sunny

Detailed Forecast

Tonight
Mostly clear, with a low around 76. Southeast wind 3 to 5 mph.
Saturday
Mostly sunny and hot, with a high near 97. Heat index values as high as 107. Southwest wind 3 to 5 mph.
Saturday Night
Mostly clear, with a low around 76. South wind 3 to 5 mph.
Sunday
Mostly sunny, with a high near 95. Heat index values as high as 107. West wind 3 to 6 mph.
Sunday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 72. North wind 3 to 5 mph. Chance of precipitation is 50%.
Monday
A slight chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 86. Chance of precipitation is 20%.
Monday Night
Partly cloudy, with a low around 67.
Tuesday
Mostly sunny, with a high near 88.
Tuesday Night
Mostly clear, with a low around 72.
Wednesday
Mostly sunny, with a high near 93.
Wednesday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 70.
Thursday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 85.
Thursday Night
Partly cloudy, with a low around 67.
Friday
A 20 percent chance of showers. Mostly sunny, with a high near 84.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Trenton ILSimilar City Names
 38.6°N 89.69°W (Elev. 502 ft)
Last Update:
5:36 pm CDT Aug 14, 2026
Forecast Valid:
7pm CDT Aug 14, 2026-6pm CDT Aug 21, 2026
 
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