Heavy to Excessive Rains in The Four Corners Region and Midwest; Heat Persists in the South-Central U.S.

Repeated rounds of showers and thunderstorms could bring a flash flooding threat across the Four Corners region and from the mid-Mississippi Valley into the lower Great Lakes. Hot temperatures and high humidity will continue to challenge daily records from the Southern Plains to the lower Mississippi Valley. Read More >

Current conditions at

Jefferson City, Jefferson City Memorial Airport (KJEF)

Lat: 38.59°NLon: 92.16°WElev: 548ft.

Fair

84°F

29°C

Humidity 70%
Wind Speed SE 6 mph
Barometer 30.24 in (1022.4 mb)
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index90°F (32°C)
Last update 16 Sep 11:53 am CDT
Extended Forecast for

6 Miles NNE Portland MO

Heat Advisory September 16, 12:21pm until September 18, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory September 16, 12:21pm until September 18, 08:00pm

    NOW until 8:00pm Fri

    Heat Advisory

  • This Afternoon

    High: 91 °F

    Mostly Sunny

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms before 8pm.  Partly cloudy, with a low around 71. Calm wind becoming south around 5 mph after midnight.

    Low: 71 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 94. Heat index values as high as 102. Light and variable wind becoming southwest around 5 mph.

    High: 94 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 70. Light and variable wind.

    Low: 70 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 92. Light and variable wind becoming southeast around 5 mph.

    High: 92 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 70.

    Low: 70 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 93.

    High: 93 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 50 percent chance of showers and thunderstorms, mainly after 1am.  Partly cloudy, with a low around 68.

    Low: 68 °F

    Slight Chance
    T-storms then
    Chance
    Showers

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 91. Heat index values as high as 101. Light and variable wind.
Tonight
A 20 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 71. Calm wind becoming south around 5 mph after midnight.
Thursday
Sunny, with a high near 94. Heat index values as high as 102. Light and variable wind becoming southwest around 5 mph.
Thursday Night
Partly cloudy, with a low around 70. Light and variable wind.
Friday
Sunny, with a high near 92. Light and variable wind becoming southeast around 5 mph.
Friday Night
Mostly clear, with a low around 70.
Saturday
Mostly sunny, with a high near 93.
Saturday Night
A 50 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 68.
Sunday
A 40 percent chance of showers. Partly sunny, with a high near 87.
Sunday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 65.
Monday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 80.
Monday Night
A 30 percent chance of showers. Partly cloudy, with a low around 60.
Tuesday
A 20 percent chance of showers. Mostly sunny, with a high near 77.
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles NNE Portland MO
 38.79°N 91.67°W (Elev. 876 ft)
11:46 am CDT Sep 16, 2026
12pm CDT Sep 16, 2026-6pm CDT Sep 22, 2026
 
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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