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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 >

Current conditions at

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

Lat: 38.93°NLon: 90.43°WElev: 436ft.

A Few Clouds

86°F

30°C

Humidity 57%
Wind Speed SW 13 mph
Barometer 29.89 in (1011.6 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Heat Index90°F (32°C)
Last update 6 Jun 3:54 pm CDT
Extended Forecast for

Old Monroe MO

  • This Afternoon

    This Afternoon: A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 88. Southwest wind around 7 mph.

    High: 88 °F

    Chance
    T-storms

  • Tonight

    Tonight: A chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 4am, then a slight chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 69. Southwest wind around 6 mph becoming calm in the evening. Chance of precipitation is 30%.

    Low: 69 °F

    Chance
    T-storms

  • Sunday

    Sunday: A 30 percent chance of showers and thunderstorms, mainly after 2pm. Partly sunny, with a high near 88. Calm wind becoming southeast 5 to 9 mph in the morning.

    High: 88 °F

    Chance
    T-storms

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 10pm. Mostly cloudy, with a low around 69. Southeast wind 6 to 8 mph. Chance of precipitation is 70%.

    Low: 69 °F

    Showers
    Likely

  • Monday

    Monday: Showers and possibly a thunderstorm. High near 85. South wind around 7 mph. Chance of precipitation is 90%.

    High: 85 °F

    Showers

  • Monday Night

    Monday Night: Showers and possibly a thunderstorm. Low around 70. Chance of precipitation is 80%.

    Low: 70 °F

    Showers

  • Tuesday

    Tuesday: A slight chance of showers and thunderstorms before 7am, then a slight chance of showers between 7am and 10am, then a slight chance of showers and thunderstorms after 10am. Mostly sunny, with a high near 91. Chance of precipitation is 20%.

    High: 91 °F

    Slight Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 73.

    Low: 73 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 95.

    High: 95 °F

    Sunny

Detailed Forecast

This Afternoon
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 88. Southwest wind around 7 mph.
Tonight
A chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 4am, then a slight chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 69. Southwest wind around 6 mph becoming calm in the evening. Chance of precipitation is 30%.
Sunday
A 30 percent chance of showers and thunderstorms, mainly after 2pm. Partly sunny, with a high near 88. Calm wind becoming southeast 5 to 9 mph in the morning.
Sunday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 10pm. Mostly cloudy, with a low around 69. Southeast wind 6 to 8 mph. Chance of precipitation is 70%.
Monday
Showers and possibly a thunderstorm. High near 85. South wind around 7 mph. Chance of precipitation is 90%.
Monday Night
Showers and possibly a thunderstorm. Low around 70. Chance of precipitation is 80%.
Tuesday
A slight chance of showers and thunderstorms before 7am, then a slight chance of showers between 7am and 10am, then a slight chance of showers and thunderstorms after 10am. Mostly sunny, with a high near 91. Chance of precipitation is 20%.
Tuesday Night
Mostly clear, with a low around 73.
Wednesday
Sunny, with a high near 95.
Wednesday Night
Mostly clear, with a low around 74.
Thursday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 94.
Thursday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 70.
Friday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 92.
Friday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 69.
Saturday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 89.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Old Monroe MO
 38.92°N 90.76°W (Elev. 436 ft)
Last Update:
2:06 pm CDT Jun 6, 2026
Forecast Valid:
4pm CDT Jun 6, 2026-6pm CDT Jun 13, 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