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

Hazardous Weather Conditions

Current conditions at

St. Louis, Spirit Of St. Louis Airport (KSUS)

Lat: 38.66°NLon: 90.66°WElev: 463ft.

Fair

12°C

53°F

Humidity 83%
Wind Speed Calm
Barometer 1019.5 mb (30.12 in)
Dewpoint 9°C (48°F)
Visibility 16 km
Last update 12 May 6:54 am CDT
Extended Forecast for

Eureka MO

  • Today

    Today: Sunny, with a high near 28. Light south wind becoming southwest 9 to 14 km/h in the morning.

    High: 28 °C

    Sunny

  • Tonight

    Tonight: A slight chance of showers and thunderstorms between 9pm and 1am. Mostly cloudy, then gradually becoming clear, with a low around 13. Southwest wind 5 to 8 km/h becoming northwest after midnight. Chance of precipitation is 20%.

    Low: 13 °C

    Slight Chance
    T-storms

  • Wednesday

    Wednesday: Sunny, with a high near 24. Northwest wind 5 to 10 km/h increasing to 11 to 16 km/h in the afternoon. Winds could gust as high as 34 km/h.

    High: 24 °C

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 8. North wind 5 to 8 km/h becoming calm in the evening.

    Low: 8 °C

    Clear

  • Thursday

    Thursday: Sunny, with a high near 25. Calm wind becoming southeast 5 to 8 km/h in the afternoon.

    High: 25 °C

    Sunny

  • Thursday Night

    Thursday Night: A 40 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 13.

    Low: 13 °C

    Partly Cloudy
    then Chance
    T-storms

  • Friday

    Friday: A 50 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 31.

    High: 31 °C

    Chance
    T-storms

  • Friday Night

    Friday Night: A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 17.

    Low: 17 °C

    Slight Chance
    T-storms

  • Saturday

    Saturday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 32.

    High: 32 °C

    Sunny then
    Slight Chance
    T-storms

Detailed Forecast

Today
Sunny, with a high near 28. Light south wind becoming southwest 9 to 14 km/h in the morning.
Tonight
A slight chance of showers and thunderstorms between 9pm and 1am. Mostly cloudy, then gradually becoming clear, with a low around 13. Southwest wind 5 to 8 km/h becoming northwest after midnight. Chance of precipitation is 20%.
Wednesday
Sunny, with a high near 24. Northwest wind 5 to 10 km/h increasing to 11 to 16 km/h in the afternoon. Winds could gust as high as 34 km/h.
Wednesday Night
Clear, with a low around 8. North wind 5 to 8 km/h becoming calm in the evening.
Thursday
Sunny, with a high near 25. Calm wind becoming southeast 5 to 8 km/h in the afternoon.
Thursday Night
A 40 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 13.
Friday
A 50 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 31.
Friday Night
A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 17.
Saturday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 32.
Saturday Night
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 19.
Sunday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 33.
Sunday Night
A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 20.
Monday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 29.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Eureka MO
 38.5°N 90.63°W (Elev. 492 m)
Last Update:
6:21 am CDT May 12, 2026
Forecast Valid:
7am CDT May 12, 2026-6pm CDT May 18, 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