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

Hazardous Weather Conditions

Current conditions at

Farmington Airport (KFAM)

Lat: 37.77°NLon: 90.43°WElev: 945ft.

Overcast

70°F

21°C

Humidity 87%
Wind Speed SE 6 mph
Barometer 30.10 in (1019.7 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Last update 24 Jul 8:56 pm CDT
Extended Forecast for

Potosi MO

Heat Advisory July 26, 11:00am until July 27, 09:00pm
Click here for hazard details and duration
Heat Advisory

  • Tonight

    Tonight: A chance of showers, with thunderstorms also possible after midnight. Cloudy, with a low around 68. South wind 3 to 5 mph. Chance of precipitation is 50%.

    Low: 68 °F

    Chance
    Showers then
    Chance
    T-storms

  • Saturday

    Saturday: A 30 percent chance of showers and thunderstorms, mainly before 11am. Cloudy, then gradually becoming mostly sunny, with a high near 86. South wind around 5 mph becoming calm in the afternoon.

    High: 86 °F

    Chance
    T-storms

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 70. Calm wind.

    Low: 70 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly cloudy, then gradually becoming sunny, with a high near 94. Heat index values as high as 106. Calm wind.

    High: 94 °F

    Decreasing
    Clouds

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 74. Light south wind.

    Low: 74 °F

    Mostly Clear

  • Monday

    Monday: Sunny and hot, with a high near 98.

    High: 98 °F

    Hot

  • Monday Night

    Monday Night: Mostly clear, with a low around 75.

    Low: 75 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 96.

    High: 96 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 72.

    Low: 72 °F

    Partly Cloudy

Detailed Forecast

Tonight
A chance of showers, with thunderstorms also possible after midnight. Cloudy, with a low around 68. South wind 3 to 5 mph. Chance of precipitation is 50%.
Saturday
A 30 percent chance of showers and thunderstorms, mainly before 11am. Cloudy, then gradually becoming mostly sunny, with a high near 86. South wind around 5 mph becoming calm in the afternoon.
Saturday Night
Partly cloudy, with a low around 70. Calm wind.
Sunday
Mostly cloudy, then gradually becoming sunny, with a high near 94. Heat index values as high as 106. Calm wind.
Sunday Night
Mostly clear, with a low around 74. Light south wind.
Monday
Sunny and hot, with a high near 98.
Monday Night
Mostly clear, with a low around 75.
Tuesday
Sunny, with a high near 96.
Tuesday Night
Partly cloudy, with a low around 72.
Wednesday
Mostly sunny, with a high near 92.
Wednesday Night
Partly cloudy, with a low around 70.
Thursday
Mostly sunny, with a high near 91.
Thursday Night
A 20 percent chance of showers. Partly cloudy, with a low around 70.
Friday
Mostly sunny, with a high near 91.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Potosi MO
 37.92°N 90.77°W (Elev. 997 ft)
Last Update:
7:41 pm CDT Jul 24, 2026
Forecast Valid:
9pm CDT Jul 24, 2026-6pm CDT Jul 31, 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