NWS St. Louis Announces Changes To May 16, 2025 Tornado Damage Assessment

After a year-long review of new ground survey data and aerial imagery, NWS St. Louis made several adjustments to the May 16, 2025 tornado damage assessment. Read More >

Hazardous Weather Conditions

Current conditions at

St. Charles, St. Charles County Smartt Airport (KSET)

Lat: 38.93°NLon: 90.43°WElev: 436ft.

Fair

69°F

21°C

Humidity 81%
Wind Speed N 3 mph
Barometer 29.79 in (1008.1 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 16 May 2:54 am CDT
Extended Forecast for

2 Miles W Old Monroe MO

  • Overnight

    Overnight: A 30 percent chance of showers and thunderstorms after 4am.  Mostly cloudy, with a low around 68. Southeast wind around 6 mph.

    Low: 68 °F

    Chance
    Showers

  • Saturday

    Saturday: Showers and possibly a thunderstorm before 11am, then a chance of showers and thunderstorms, mainly between 11am and 4pm.  High near 83. East wind around 7 mph becoming south in the morning.  Chance of precipitation is 80%.

    High: 83 °F

    Showers then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A 20 percent chance of showers and thunderstorms, mainly between 8pm and 9pm.  Partly cloudy, with a low around 63. Southeast wind around 6 mph.

    Low: 63 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 90. South wind 8 to 15 mph, with gusts as high as 26 mph.

    High: 90 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 68. South wind around 11 mph, with gusts as high as 23 mph.

    Low: 68 °F

    Mostly Clear

  • Monday

    Monday: A 50 percent chance of showers and thunderstorms.  Partly sunny, with a high near 88.

    High: 88 °F

    Chance
    Showers then
    Chance
    T-storms

  • Monday Night

    Monday Night: A 50 percent chance of showers and thunderstorms.  Partly cloudy, with a low around 68.

    Low: 68 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: Showers and thunderstorms likely, mainly after 1pm.  Partly sunny, with a high near 84. Chance of precipitation is 70%.

    High: 84 °F

    T-storms
    Likely

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm.  Mostly cloudy, with a low around 56. Chance of precipitation is 70%.

    Low: 56 °F

    Showers
    Likely

Detailed Forecast

Overnight
A 30 percent chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 68. Southeast wind around 6 mph.
Saturday
Showers and possibly a thunderstorm before 11am, then a chance of showers and thunderstorms, mainly between 11am and 4pm. High near 83. East wind around 7 mph becoming south in the morning. Chance of precipitation is 80%.
Saturday Night
A 20 percent chance of showers and thunderstorms, mainly between 8pm and 9pm. Partly cloudy, with a low around 63. Southeast wind around 6 mph.
Sunday
Sunny, with a high near 90. South wind 8 to 15 mph, with gusts as high as 26 mph.
Sunday Night
Mostly clear, with a low around 68. South wind around 11 mph, with gusts as high as 23 mph.
Monday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 88.
Monday Night
A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 68.
Tuesday
Showers and thunderstorms likely, mainly after 1pm. Partly sunny, with a high near 84. Chance of precipitation is 70%.
Tuesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 56. Chance of precipitation is 70%.
Wednesday
Mostly cloudy, with a high near 71.
Wednesday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 51.
Thursday
Partly sunny, with a high near 72.
Thursday Night
A 20 percent chance of showers. Partly cloudy, with a low around 52.
Friday
Mostly sunny, with a high near 77.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles W Old Monroe MO
 38.94°N 90.79°W (Elev. 499 ft)
1:25 am CDT May 16, 2026
3am CDT May 16, 2026-6pm CDT May 22, 2026
 
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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