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.

Fair

78°F

26°C

Humidity 87%
Wind Speed S 5 mph
Barometer 29.93 in (1013.4 mb)
Dewpoint 74°F (23°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 27 Jun 7:56 pm CDT
Extended Forecast for

Potosi MO

Heat Advisory June 28, 12:00pm until July 3, 12:00am
Click here for hazard details and duration
Heat Advisory

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms before 4am. Partly cloudy, with a low around 70. Light south wind.

    Low: 70 °F

    Slight Chance
    T-storms

  • Sunday

    Sunday: Sunny, with a high near 92. Heat index values as high as 101. South wind 3 to 6 mph.

    High: 92 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 73. South wind around 5 mph.

    Low: 73 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 94. Heat index values as high as 106. South wind 5 to 7 mph.

    High: 94 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 73. South wind around 6 mph.

    Low: 73 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 95.

    High: 95 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 74.

    Low: 74 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 94.

    High: 94 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 74.

    Low: 74 °F

    Mostly Clear

Detailed Forecast

Tonight
A 20 percent chance of showers and thunderstorms before 4am. Partly cloudy, with a low around 70. Light south wind.
Sunday
Sunny, with a high near 92. Heat index values as high as 101. South wind 3 to 6 mph.
Sunday Night
Mostly clear, with a low around 73. South wind around 5 mph.
Monday
Sunny, with a high near 94. Heat index values as high as 106. South wind 5 to 7 mph.
Monday Night
Mostly clear, with a low around 73. South wind around 6 mph.
Tuesday
Sunny, with a high near 95.
Tuesday Night
Clear, with a low around 74.
Wednesday
Sunny, with a high near 94.
Wednesday Night
Mostly clear, with a low around 74.
Thursday
A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 94.
Thursday Night
Partly cloudy, with a low around 73.
Friday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 93.
Friday Night
Mostly clear, with a low around 73.
Independence Day
A 30 percent chance of showers and thunderstorms. Sunny, with a high near 93.
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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:
5:16 pm CDT Jun 27, 2026
Forecast Valid:
8pm CDT Jun 27, 2026-6pm CDT Jul 4, 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