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

Hazardous Weather Conditions

Current conditions at

Washington Regional Airport (KFYG)

Lat: 38.59°NLon: 90.99°WElev: 489ft.

Fair

95°F

35°C

Humidity 56%
Wind Speed S 6 mph
Barometer 30.00 in
Dewpoint 77°F (25°C)
Visibility 7.00 mi
Heat Index110°F (43°C)
Last update 30 Jun 3:35 pm CDT
Extended Forecast for

Foristell MO

Extreme Heat Warning June 30, 03:40pm until July 3, 10:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning June 30, 03:40pm until July 3, 10:00pm

    NOW until 10:00pm Fri

    Extreme Heat Warning

  • Tonight

    Low: 75 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 96. Heat index values as high as 106. South wind 3 to 7 mph.

    High: 96 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 76. South wind 3 to 5 mph.

    Low: 76 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 96. Heat index values as high as 107. Southwest wind 3 to 5 mph.

    High: 96 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 75. Light south wind.

    Low: 75 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 95.

    High: 95 °F

    Sunny

  • Friday Night

    Friday Night: A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 74.

    Low: 74 °F

    Chance
    T-storms

  • Independence Day

    Independence Day: A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 94.

    High: 94 °F

    Slight Chance
    T-storms

Detailed Forecast

Tonight
Clear, with a low around 75. South wind 5 to 7 mph.
Wednesday
Sunny, with a high near 96. Heat index values as high as 106. South wind 3 to 7 mph.
Wednesday Night
Clear, with a low around 76. South wind 3 to 5 mph.
Thursday
Sunny, with a high near 96. Heat index values as high as 107. Southwest wind 3 to 5 mph.
Thursday Night
Partly cloudy, with a low around 75. Light south wind.
Friday
Sunny, with a high near 95.
Friday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 74.
Independence Day
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 94.
Saturday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72.
Sunday
Mostly sunny, with a high near 93.
Sunday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72.
Monday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 92.
Monday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 71.
Tuesday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Foristell MO
 38.82°N 90.96°W (Elev. 699 ft)
Last Update:
1:26 pm CDT Jun 30, 2026
Forecast Valid:
3pm CDT Jun 30, 2026-6pm CDT Jul 7, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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