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

Areas of Dangerous Heat and Heavy Rain with Possible Flooding into this Weekend

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend with heat advisories in effect. Heavy to excessive rainfall occurring at times through Sunday could bring areas of flooding to parts of the upper Midwest, central Great Lakes, southern New England and Virginia/North Carolina tidewater region. Read More >

Hazardous Weather Conditions

Current conditions at

Farmington Airport (KFAM)

Lat: 37.77°NLon: 90.43°WElev: 945ft.

Fair

75°F

24°C

Humidity 100%
Wind Speed Calm
Barometer 30.21 in (1022.9 mb)
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Last update 17 Sep 11:56 pm CDT
Extended Forecast for

Ellington MO

Heat Advisory September 17, 11:58pm until September 19, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory September 17, 11:58pm until September 19, 08:00pm

    NOW until 8:00pm Sat

    Heat Advisory

  • Tonight

    Low: 73 °F

    Mostly Clear

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms after 4pm. Increasing clouds and hot, with a high near 98. Heat index values as high as 105. Calm wind becoming west around 5 mph.

    High: 98 °F

    Sunny then
    Slight Chance
    T-storms

  • Friday Night

    Friday Night: Mostly cloudy, then gradually becoming clear, with a low around 70. Light and variable wind.

    Low: 70 °F

    Decreasing
    Clouds

  • Saturday

    Saturday: Sunny and hot, with a high near 98. Calm wind becoming west 5 to 7 mph.

    High: 98 °F

    Hot

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 69. Calm wind.

    Low: 69 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny and hot, with a high near 97.

    High: 97 °F

    Hot

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 68.

    Low: 68 °F

    Partly Cloudy

  • Monday

    Monday: A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 91. Chance of precipitation is 50%.

    High: 91 °F

    Slight Chance
    Showers then
    Chance
    T-storms

Detailed Forecast

Tonight
Mostly clear, with a low around 73. Calm wind.
Friday
A 20 percent chance of showers and thunderstorms after 4pm. Increasing clouds and hot, with a high near 98. Heat index values as high as 105. Calm wind becoming west around 5 mph.
Friday Night
Mostly cloudy, then gradually becoming clear, with a low around 70. Light and variable wind.
Saturday
Sunny and hot, with a high near 98. Calm wind becoming west 5 to 7 mph.
Saturday Night
Mostly clear, with a low around 69. Calm wind.
Sunday
Mostly sunny and hot, with a high near 97.
Sunday Night
Partly cloudy, with a low around 68.
Monday
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 91. Chance of precipitation is 50%.
Monday Night
A 20 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 62.
Tuesday
Mostly sunny, with a high near 82.
Tuesday Night
Partly cloudy, with a low around 57.
Wednesday
Sunny, with a high near 82.
Wednesday Night
Partly cloudy, with a low around 57.
Thursday
Mostly sunny, with a high near 83.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Ellington MO
 37.24°N 90.97°W (Elev. 705 ft)
Last Update:
11:56 pm CDT Sep 17, 2026
Forecast Valid:
11pm CDT Sep 17, 2026-6pm CDT Sep 24, 2026
 
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