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

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

Lat: 38.66°NLon: 90.66°WElev: 463ft.

Fair

37°F

3°C

Humidity 76%
Wind Speed Calm
Barometer 30.08 in (1018.7 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Last update 13 Mar 11:54 pm CDT
Extended Forecast for

Eureka MO

  • Overnight

    Overnight: Partly cloudy, with a low around 35. Calm wind.

    Low: 35 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, then gradually becoming sunny, with a high near 65. Light and variable wind becoming southeast 5 to 10 mph in the morning. Winds could gust as high as 21 mph.

    High: 65 °F

    Becoming
    Sunny

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 54. South wind 6 to 10 mph, with gusts as high as 24 mph.

    Low: 54 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Rain, mainly between 1pm and 4pm, then showers and possibly a thunderstorm after 4pm. High near 68. South wind 13 to 16 mph, with gusts as high as 36 mph. Chance of precipitation is 90%.

    High: 68 °F

    Chance Rain
    then Showers

  • Sunday Night

    Sunday Night: Rain before 10pm, then snow, possibly mixed with rain between 10pm and 1am, then a chance of snow after 1am. Some thunder is also possible. Low around 19. West wind 14 to 18 mph, with gusts as high as 41 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

    Low: 19 °F

    Rain/Snow

  • Monday

    Monday: A 30 percent chance of snow before 1pm. Partly sunny, with a high near 30.

    High: 30 °F

    Chance Snow

  • Monday Night

    Monday Night: Mostly clear, with a low around 11.

    Low: 11 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 39.

    High: 39 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A slight chance of snow before 1am, then a slight chance of rain and snow. Mostly cloudy, with a low around 29. Chance of precipitation is 20%.

    Low: 29 °F

    Slight Chance
    Snow then
    Slight Chance
    Rain/Snow

Detailed Forecast

Overnight
Partly cloudy, with a low around 35. Calm wind.
Saturday
Partly sunny, then gradually becoming sunny, with a high near 65. Light and variable wind becoming southeast 5 to 10 mph in the morning. Winds could gust as high as 21 mph.
Saturday Night
Increasing clouds, with a low around 54. South wind 6 to 10 mph, with gusts as high as 24 mph.
Sunday
Rain, mainly between 1pm and 4pm, then showers and possibly a thunderstorm after 4pm. High near 68. South wind 13 to 16 mph, with gusts as high as 36 mph. Chance of precipitation is 90%.
Sunday Night
Rain before 10pm, then snow, possibly mixed with rain between 10pm and 1am, then a chance of snow after 1am. Some thunder is also possible. Low around 19. West wind 14 to 18 mph, with gusts as high as 41 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.
Monday
A 30 percent chance of snow before 1pm. Partly sunny, with a high near 30.
Monday Night
Mostly clear, with a low around 11.
Tuesday
Sunny, with a high near 39.
Tuesday Night
A slight chance of snow before 1am, then a slight chance of rain and snow. Mostly cloudy, with a low around 29. Chance of precipitation is 20%.
Wednesday
Mostly sunny, with a high near 66.
Wednesday Night
Mostly clear, with a low around 41.
Thursday
Mostly sunny, with a high near 72.
Thursday Night
Mostly clear, with a low around 45.
Friday
Sunny, with a high near 71.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Eureka MO
 38.5°N 90.63°W (Elev. 492 ft)
Last Update:
11:46 pm CDT Mar 13, 2026
Forecast Valid:
12am CDT Mar 14, 2026-6pm CDT Mar 20, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation