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.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

Potosi MO

Heat Advisory August 17, 12:58pm until August 18, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory August 17, 12:58pm until August 18, 08:00pm

    NOW until 8:00pm Mon

    Heat Advisory

  • This Afternoon

    High: 96 °F

    Scattered
    T-storms

  • Tonight

    Tonight: Scattered showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 75. Light southeast wind. Chance of precipitation is 30%.

    Low: 75 °F

    Scattered
    T-storms then
    Partly Cloudy

  • Monday

    Monday: Scattered showers and thunderstorms, mainly after 3pm. Mostly sunny and hot, with a high near 97. Heat index values as high as 105. Light south wind. Chance of precipitation is 30%.

    High: 97 °F

    Sunny then
    Scattered
    T-storms

  • Monday Night

    Monday Night: Scattered showers and thunderstorms before 7pm. Partly cloudy, with a low around 72. Calm wind. Chance of precipitation is 30%.

    Low: 72 °F

    Scattered
    T-storms then
    Mostly Clear

  • Tuesday

    Tuesday: A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 96. Calm wind. Chance of precipitation is 40%.

    High: 96 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 69.

    Low: 69 °F

    Chance
    T-storms then
    Chance
    Showers

  • Wednesday

    Wednesday: A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 87. Chance of precipitation is 30%.

    High: 87 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 66.

    Low: 66 °F

    Partly Cloudy

Detailed Forecast

This Afternoon
Scattered showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 96. Heat index values as high as 103. Calm wind becoming east around 5 mph. Chance of precipitation is 40%.
Tonight
Scattered showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 75. Light southeast wind. Chance of precipitation is 30%.
Monday
Scattered showers and thunderstorms, mainly after 3pm. Mostly sunny and hot, with a high near 97. Heat index values as high as 105. Light south wind. Chance of precipitation is 30%.
Monday Night
Scattered showers and thunderstorms before 7pm. Partly cloudy, with a low around 72. Calm wind. Chance of precipitation is 30%.
Tuesday
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 96. Calm wind. Chance of precipitation is 40%.
Tuesday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 69.
Wednesday
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 87. Chance of precipitation is 30%.
Wednesday Night
Partly cloudy, with a low around 66.
Thursday
Mostly sunny, with a high near 85.
Thursday Night
Mostly clear, with a low around 64.
Friday
Sunny, with a high near 88.
Friday Night
Mostly clear, with a low around 64.
Saturday
Sunny, with a high near 89.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Potosi MO
 37.95°N 90.8°W (Elev. 892 ft)
Last Update:
12:51 pm CDT Aug 17, 2025
Forecast Valid:
12pm CDT Aug 17, 2025-6pm CDT Aug 23, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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