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

Jefferson City, Jefferson City Memorial Airport (KJEF)

Lat: 38.59°NLon: 92.16°WElev: 548ft.

Fair

79°F

26°C

Humidity 60%
Wind Speed NE 3 mph
Barometer 30.02 in (1015.1 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 22 Aug 7:53 pm CDT
Extended Forecast for

4 Miles ESE Hartsburg MO

  • Tonight

    Tonight: Patchy fog after 4am. Otherwise, mostly clear, with a low around 64. Calm wind.

    Low: 64 °F

    Mostly Clear
    then Patchy
    Fog

  • Sunday

    Sunday: Patchy fog before 8am. Otherwise, mostly sunny, with a high near 83. Calm wind.

    High: 83 °F

    Patchy Fog
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 64. Calm wind.

    Low: 64 °F

    Mostly Cloudy

  • Monday

    Monday: A 20 percent chance of showers before 1pm. Partly sunny, with a high near 83. Calm wind becoming southeast around 6 mph in the morning.

    High: 83 °F

    Slight Chance
    Showers

  • Monday Night

    Monday Night: Mostly clear, with a low around 67. East wind around 5 mph becoming calm in the evening.

    Low: 67 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 87.

    High: 87 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers after 1am. Partly cloudy, with a low around 69.

    Low: 69 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Wednesday

    Wednesday: A 20 percent chance of showers before 1pm. Partly sunny, with a high near 88.

    High: 88 °F

    Slight Chance
    Showers

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 68.

    Low: 68 °F

    Mostly Clear

Detailed Forecast

Tonight
Patchy fog after 4am. Otherwise, mostly clear, with a low around 64. Calm wind.
Sunday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 83. Calm wind.
Sunday Night
Mostly cloudy, with a low around 64. Calm wind.
Monday
A 20 percent chance of showers before 1pm. Partly sunny, with a high near 83. Calm wind becoming southeast around 6 mph in the morning.
Monday Night
Mostly clear, with a low around 67. East wind around 5 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 87.
Tuesday Night
A 20 percent chance of showers after 1am. Partly cloudy, with a low around 69.
Wednesday
A 20 percent chance of showers before 1pm. Partly sunny, with a high near 88.
Wednesday Night
Mostly clear, with a low around 68.
Thursday
Sunny, with a high near 87.
Thursday Night
Mostly clear, with a low around 66.
Friday
Mostly sunny, with a high near 87.
Friday Night
Mostly clear, with a low around 69.
Saturday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 89.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles ESE Hartsburg MO
 38.69°N 92.25°W (Elev. 797 ft)
Last Update:
5:56 pm CDT Aug 22, 2026
Forecast Valid:
8pm CDT Aug 22, 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