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

Dangerous Heat over the South-Central and Southwest U.S. Through Next Week

Dangerous heat persists across the Desert Southwest through this weekend and across the Southern Plains and Lower Mississippi Valley through at least the middle of next week. Numerous daily record high temperatures are expected through at least Tuesday for much of Texas and Oklahoma as well as portions of Louisiana, New Mexico, and Arizona. Read More >

Current conditions at

Farmington Airport (KFAM)

Lat: 37.77°NLon: 90.43°WElev: 945ft.

Fair

68°F

20°C

Humidity 96%
Wind Speed Calm
Barometer 30.08 in (1018.8 mb)
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Last update 22 Aug 11:56 pm CDT
Extended Forecast for

Potosi MO

  • Overnight

    Overnight: Clear, with a low around 63. Calm wind.

    Low: 63 °F

    Clear

  • Sunday

    Sunday: Increasing clouds, with a high near 82. Calm wind becoming northwest around 6 mph in the afternoon.

    High: 82 °F

    Increasing
    Clouds

  • Sunday Night

    Sunday Night: Cloudy, then gradually becoming partly cloudy, with a low around 61. Light and variable wind.

    Low: 61 °F

    Decreasing
    Clouds

  • Monday

    Monday: Mostly sunny, with a high near 80. Calm wind becoming southeast around 5 mph.

    High: 80 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 64. Calm wind.

    Low: 64 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 85.

    High: 85 °F

    Mostly Sunny

  • Tuesday Night

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

    Low: 66 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 87.

    High: 87 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Wednesday Night

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

    Low: 66 °F

    Partly Cloudy

Detailed Forecast

Overnight
Clear, with a low around 63. Calm wind.
Sunday
Increasing clouds, with a high near 82. Calm wind becoming northwest around 6 mph in the afternoon.
Sunday Night
Cloudy, then gradually becoming partly cloudy, with a low around 61. Light and variable wind.
Monday
Mostly sunny, with a high near 80. Calm wind becoming southeast around 5 mph.
Monday Night
Partly cloudy, with a low around 64. Calm wind.
Tuesday
Mostly sunny, with a high near 85.
Tuesday Night
Partly cloudy, with a low around 66.
Wednesday
A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 87.
Wednesday Night
Partly cloudy, with a low around 66.
Thursday
Sunny, with a high near 87.
Thursday Night
Mostly clear, with a low around 64.
Friday
Sunny, with a high near 86.
Friday Night
Mostly clear, with a low around 65.
Saturday
Mostly sunny, with a high near 87.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Potosi MO
 37.92°N 90.77°W (Elev. 997 ft)
Last Update:
11:16 pm CDT Aug 22, 2026
Forecast Valid:
12am CDT Aug 23, 2026-6pm CDT Aug 29, 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