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

Heat Builds in the West; Extremely Critical Fire Weather in the Northwest

A heat wave over the Southwest will intensify this week, peaking and expanding into the Intermountain West and northern High Plains this weekend. Critical to extremely critical fire weather conditions are forecast from the Northwest and the northern Great Basin this weekend. Particularly Dangerous Situation Red Flag Warnings have been issued. Read More >

Current conditions at

St. Louis Lambert International Airport (KSTL)

Lat: 38.75°NLon: 90.37°WElev: 604ft.

Light Drizzle Fog/Mist

67°F

19°C

Humidity 91%
Wind Speed W 17 mph
Barometer 29.67 in (1003.6 mb)
Dewpoint 64°F (18°C)
Visibility 3.00 mi
Last update 1 Aug 7:51 am CDT
Extended Forecast for

Bellefontaine Neighbors MO

  • Today

    Today: Showers likely, mainly after 4pm. Cloudy, with a high near 75. West wind 9 to 13 mph becoming northwest in the afternoon. Winds could gust as high as 22 mph. Chance of precipitation is 60%.

    High: 75 °F

    Isolated
    Showers then
    Showers
    Likely

  • Tonight

    Tonight: Showers likely, mainly before 9pm. Cloudy, with a low around 68. North wind 13 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%.

    Low: 68 °F

    Showers
    Likely then
    Scattered
    Showers

  • Sunday

    Sunday: Cloudy, then gradually becoming mostly sunny, with a high near 81. North wind around 14 mph, with gusts as high as 24 mph.

    High: 81 °F

    Decreasing
    Clouds

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 67. North wind 5 to 10 mph.

    Low: 67 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 84. North wind 5 to 7 mph.

    High: 84 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 67.

    Low: 67 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 69.

    Low: 69 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 88.

    High: 88 °F

    Sunny

Detailed Forecast

Today
Showers likely, mainly after 4pm. Cloudy, with a high near 75. West wind 9 to 13 mph becoming northwest in the afternoon. Winds could gust as high as 22 mph. Chance of precipitation is 60%.
Tonight
Showers likely, mainly before 9pm. Cloudy, with a low around 68. North wind 13 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%.
Sunday
Cloudy, then gradually becoming mostly sunny, with a high near 81. North wind around 14 mph, with gusts as high as 24 mph.
Sunday Night
Mostly clear, with a low around 67. North wind 5 to 10 mph.
Monday
Sunny, with a high near 84. North wind 5 to 7 mph.
Monday Night
Mostly clear, with a low around 67.
Tuesday
Sunny, with a high near 86.
Tuesday Night
Mostly clear, with a low around 69.
Wednesday
Sunny, with a high near 88.
Wednesday Night
A 40 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 72.
Thursday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 88.
Thursday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 73.
Friday
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:
Bellefontaine Neighbors MO
 38.75°N 90.23°W (Elev. 499 ft)
Last Update:
6:21 am CDT Aug 1, 2026
Forecast Valid:
7am CDT Aug 1, 2026-6pm CDT Aug 7, 2026
 
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Additional Resources

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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