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 Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Overcast

69°F

21°C

Humidity 93%
Wind Speed N 14 mph
Barometer 29.74 in (1006.7 mb)
Dewpoint 67°F (19°C)
Visibility 8.00 mi
Last update 1 Aug 10:53 pm CDT
Extended Forecast for

2 Miles SE Crystal City MO

  • Tonight

    Tonight: A chance of drizzle, mainly before 5am. Cloudy, with a low around 66. Northwest wind around 14 mph, with gusts as high as 21 mph.

    Low: 66 °F

    Chance
    Drizzle

  • Sunday

    Sunday: Cloudy, then gradually becoming mostly sunny, with a high near 79. North wind around 10 mph, with gusts as high as 21 mph.

    High: 79 °F

    Decreasing
    Clouds

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 64. North wind 3 to 7 mph.

    Low: 64 °F

    Mostly Clear

  • Monday

    Monday: Mostly cloudy, then gradually becoming sunny, with a high near 83. Light north wind.

    High: 83 °F

    Decreasing
    Clouds

  • Monday Night

    Monday Night: Mostly clear, with a low around 63. Light east wind.

    Low: 63 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 85.

    High: 85 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 65.

    Low: 65 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 88.

    High: 88 °F

    Sunny

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 68.

    Low: 68 °F

    Partly Cloudy
    then Chance
    T-storms

Detailed Forecast

Tonight
A chance of drizzle, mainly before 5am. Cloudy, with a low around 66. Northwest wind around 14 mph, with gusts as high as 21 mph.
Sunday
Cloudy, then gradually becoming mostly sunny, with a high near 79. North wind around 10 mph, with gusts as high as 21 mph.
Sunday Night
Mostly clear, with a low around 64. North wind 3 to 7 mph.
Monday
Mostly cloudy, then gradually becoming sunny, with a high near 83. Light north wind.
Monday Night
Mostly clear, with a low around 63. Light east wind.
Tuesday
Sunny, with a high near 85.
Tuesday Night
Mostly clear, with a low around 65.
Wednesday
Sunny, with a high near 88.
Wednesday Night
A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 68.
Thursday
A 40 percent chance of showers and thunderstorms, mainly before 1pm. Mostly sunny, with a high near 88.
Thursday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 71.
Friday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90.
Friday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72.
Saturday
Mostly sunny, with a high near 93.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SE Crystal City MO
 38.2°N 90.36°W (Elev. 692 ft)
Last Update:
9:01 pm CDT Aug 1, 2026
Forecast Valid:
11pm CDT Aug 1, 2026-6pm CDT Aug 8, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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