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 >

Current conditions at

Washington Regional Airport (KFYG)

Lat: 38.59°NLon: 90.99°WElev: 489ft.

Fair

81°F

27°C

Humidity 89%
Wind Speed Calm
Barometer 29.99 in
Dewpoint 77°F (25°C)
Visibility 10.00 mi
Heat Index88°F (31°C)
Last update 15 Aug 3:35 am CDT
Extended Forecast for

Hermann MO

Extreme Heat Warning August 15, 03:41am until August 16, 09:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning August 15, 03:41am until August 16, 09:00pm

    NOW until 9:00pm Sun

    Extreme Heat Warning

  • Overnight

    Low: 76 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 20 percent chance of showers and thunderstorms, mainly between 8am and 9am.  Mostly cloudy, then gradually becoming sunny, with a high near 92. Heat index values as high as 105. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 92 °F

    Slight Chance
    T-storms then
    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 73. Calm wind.

    Low: 73 °F

    Partly Cloudy

  • Sunday

    Sunday: A slight chance of showers and thunderstorms between 4pm and 5pm.  Mostly cloudy, then gradually becoming sunny, with a high near 92. Heat index values as high as 106. Calm wind becoming west around 5 mph in the afternoon.  Chance of precipitation is 20%.

    High: 92 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am, then a slight chance of showers and thunderstorms after 1am.  Partly cloudy, with a low around 68. Light north wind.  Chance of precipitation is 20%.

    Low: 68 °F

    Slight Chance
    T-storms

  • Monday

    Monday: Mostly sunny, with a high near 85.

    High: 85 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 64.

    Low: 64 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 90.

    High: 90 °F

    Sunny

Detailed Forecast

Overnight
Mostly cloudy, with a low around 76. Calm wind.
Saturday
A 20 percent chance of showers and thunderstorms, mainly between 8am and 9am. Mostly cloudy, then gradually becoming sunny, with a high near 92. Heat index values as high as 105. Calm wind becoming southwest around 6 mph in the afternoon.
Saturday Night
Partly cloudy, with a low around 73. Calm wind.
Sunday
A slight chance of showers and thunderstorms between 4pm and 5pm. Mostly cloudy, then gradually becoming sunny, with a high near 92. Heat index values as high as 106. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 20%.
Sunday Night
A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am, then a slight chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 68. Light north wind. Chance of precipitation is 20%.
Monday
Mostly sunny, with a high near 85.
Monday Night
Partly cloudy, with a low around 64.
Tuesday
Sunny, with a high near 90.
Tuesday Night
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 71.
Wednesday
A slight chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 89. Chance of precipitation is 20%.
Wednesday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 65.
Thursday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 81.
Thursday Night
A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 61.
Friday
Mostly sunny, with a high near 82.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Hermann MO
 38.69°N 91.42°W (Elev. 692 ft)
2:56 am CDT Aug 15, 2026
3am CDT Aug 15, 2026-6pm CDT Aug 21, 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