National Weather Service

Heavy Snow in the Northern Rockies; Severe Weather Across the Plains; Critical Fire Weather in the Southwest

Heavy wet snow and gusty winds are expected in the higher elevations of Idaho, western Montana, and Wyoming Thursday. Meanwhile, another round of severe storms are expected to develop across the central and southern Plains. Damaging winds, tornadoes and large hail are the primary threats. Further west, dry conditions and gusty winds will lead to critical fire weather concerns in the Southwest Read More >

Hazardous Weather Conditions

Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Fair

73°F

23°C

Humidity 84%
Wind Speed SE 8 mph
Barometer 29.85 in (1010.3 mb)
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Last update 23 May 10:53 pm CDT
Extended Forecast for

Arnold MO

  • Tonight

    Tonight: Partly cloudy, with a low around 66. South wind 3 to 5 mph.

    Low: 66 °F

    Partly Cloudy

  • Friday

    Friday: Showers and thunderstorms likely, mainly between 1pm and 4pm, then showers likely and possibly a thunderstorm after 4pm.  Mostly sunny, with a high near 84. South wind 6 to 10 mph.  Chance of precipitation is 70%.

    High: 84 °F

    Slight Chance
    T-storms then
    T-storms
    Likely

  • Friday Night

    Friday Night: A 40 percent chance of showers and thunderstorms, mainly before midnight.  Mostly cloudy, with a low around 62. South wind 5 to 8 mph becoming northwest after midnight.

    Low: 62 °F

    Chance
    T-storms

  • Saturday

    Saturday: Sunny, with a high near 83. North wind around 5 mph becoming calm  in the morning.

    High: 83 °F

    Sunny

  • Saturday Night

    Saturday Night: A slight chance of showers before 10pm, then a slight chance of showers and thunderstorms between 10pm and 1am, then showers likely and possibly a thunderstorm after 1am.  Partly cloudy, with a low around 67. East wind 3 to 6 mph.  Chance of precipitation is 60%.

    Low: 67 °F

    Slight Chance
    T-storms then
    Showers
    Likely

  • Sunday

    Sunday: Showers and possibly a thunderstorm.  High near 89. Chance of precipitation is 80%.

    High: 89 °F

    Showers

  • Sunday Night

    Sunday Night: A 40 percent chance of showers and thunderstorms, mainly before 1am.  Mostly clear, with a low around 64.

    Low: 64 °F

    Chance
    T-storms

  • Memorial Day

    Memorial Day: A slight chance of showers, then a chance of showers and thunderstorms after 1pm.  Mostly sunny, with a high near 80. Chance of precipitation is 30%.

    High: 80 °F

    Chance
    Showers

  • Monday Night

    Monday Night: Mostly clear, with a low around 58.

    Low: 58 °F

    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 66. South wind 3 to 5 mph.
Friday
Showers and thunderstorms likely, mainly between 1pm and 4pm, then showers likely and possibly a thunderstorm after 4pm. Mostly sunny, with a high near 84. South wind 6 to 10 mph. Chance of precipitation is 70%.
Friday Night
A 40 percent chance of showers and thunderstorms, mainly before midnight. Mostly cloudy, with a low around 62. South wind 5 to 8 mph becoming northwest after midnight.
Saturday
Sunny, with a high near 83. North wind around 5 mph becoming calm in the morning.
Saturday Night
A slight chance of showers before 10pm, then a slight chance of showers and thunderstorms between 10pm and 1am, then showers likely and possibly a thunderstorm after 1am. Partly cloudy, with a low around 67. East wind 3 to 6 mph. Chance of precipitation is 60%.
Sunday
Showers and possibly a thunderstorm. High near 89. Chance of precipitation is 80%.
Sunday Night
A 40 percent chance of showers and thunderstorms, mainly before 1am. Mostly clear, with a low around 64.
Memorial Day
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 80. Chance of precipitation is 30%.
Monday Night
Mostly clear, with a low around 58.
Tuesday
Sunny, with a high near 81.
Tuesday Night
Mostly clear, with a low around 58.
Wednesday
Sunny, with a high near 79.
Wednesday Night
Mostly clear, with a low around 57.
Thursday
Sunny, with a high near 81.
Click Map For Forecast

ABOUT THIS FORECAST

 
Point Forecast:
Arnold MO
 38.42°N 90.38°W (Elev. 495 ft)
9:37 pm CDT May 23, 2024
11pm CDT May 23, 2024-6pm CDT May 30, 2024
 
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