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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 >

Hazardous Weather Conditions

Current conditions at

Farmington Airport (KFAM)

Lat: 37.77°NLon: 90.43°WElev: 945ft.

Fair

69°F

21°C

Humidity 90%
Wind Speed N 7 mph
Barometer 30.08 in (1019.0 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Last update 19 May 8:56 pm CDT
Extended Forecast for

Potosi MO

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly before 11pm. Cloudy, with a low around 53. Calm wind becoming north around 6 mph after midnight.

    Low: 53 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms before 8am. Cloudy, with a high near 62. North wind around 6 mph.

    High: 62 °F

    Slight Chance
    T-storms then
    Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 51. Northeast wind 3 to 5 mph.

    Low: 51 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 70. East wind around 6 mph.

    High: 70 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Showers, with thunderstorms also possible after 4am. Low around 55. East wind around 6 mph. Chance of precipitation is 80%.

    Low: 55 °F

    Chance
    Showers then
    Showers

  • Friday

    Friday: Showers and possibly a thunderstorm. High near 73. Chance of precipitation is 80%.

    High: 73 °F

    Showers

  • Friday Night

    Friday Night: A 20 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 56.

    Low: 56 °F

    Slight Chance
    T-storms

  • Saturday

    Saturday: A 50 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 81.

    High: 81 °F

    Partly Sunny
    then Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 58. Chance of precipitation is 40%.

    Low: 58 °F

    Chance
    Showers

Detailed Forecast

Tonight
A 30 percent chance of showers and thunderstorms, mainly before 11pm. Cloudy, with a low around 53. Calm wind becoming north around 6 mph after midnight.
Wednesday
A 20 percent chance of showers and thunderstorms before 8am. Cloudy, with a high near 62. North wind around 6 mph.
Wednesday Night
Mostly cloudy, with a low around 51. Northeast wind 3 to 5 mph.
Thursday
Partly sunny, with a high near 70. East wind around 6 mph.
Thursday Night
Showers, with thunderstorms also possible after 4am. Low around 55. East wind around 6 mph. Chance of precipitation is 80%.
Friday
Showers and possibly a thunderstorm. High near 73. Chance of precipitation is 80%.
Friday Night
A 20 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 56.
Saturday
A 50 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 81.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 58. Chance of precipitation is 40%.
Sunday
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 80.
Sunday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 59.
Memorial Day
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 81.
Monday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 62.
Tuesday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 84.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Potosi MO
 37.94°N 90.77°W (Elev. 1099 ft)
Last Update:
8:41 pm CDT May 19, 2026
Forecast Valid:
9pm CDT May 19, 2026-6pm CDT May 26, 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