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 much of northeast Texas into the mid-Mississippi Valley into this weekend with heat advisories in effect. Heavy to excessive rainfall occurring at times through Saturday could bring areas of flooding across parts of the central Plains into the upper Midwest/Great Lakes, and Four Corners states. Read More >

Hazardous Weather Conditions

Current conditions at

Marshall Memorial Municipal Airport (KMHL)

Lat: 39.1°NLon: 93.2°WElev: 779ft.

Fair

91°F

33°C

Humidity 52%
Wind Speed SW 5 mph
Barometer 30.22 in
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index98°F (37°C)
Last update 17 Sep 11:55 am CDT
Extended Forecast for

Brunswick MO

  • This Afternoon

    This Afternoon: Sunny, with a high near 91. Heat index values as high as 101. West wind around 6 mph.

    High: 91 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 70. Calm wind becoming east around 5 mph after midnight.

    Low: 70 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 93. Heat index values as high as 100. East southeast wind 5 to 8 mph becoming south southwest in the afternoon.

    High: 93 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 71. South wind 3 to 6 mph.

    Low: 71 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 91. South southwest wind 7 to 11 mph, with gusts as high as 18 mph.

    High: 91 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before 1am, then showers likely and possibly a thunderstorm between 1am and 4am, then showers likely after 4am. Mostly cloudy, with a low around 67. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 67 °F

    Chance
    T-storms then
    Showers
    Likely

  • Sunday

    Sunday: A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 80. Chance of precipitation is 50%.

    High: 80 °F

    Chance
    Showers then
    Chance
    T-storms

  • Sunday Night

    Sunday Night: Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Low around 62. Chance of precipitation is 80%.

    Low: 62 °F

    Heavy Rain

  • Monday

    Monday: A chance of showers before 1pm. Mostly cloudy, with a high near 73. Chance of precipitation is 50%.

    High: 73 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
Sunny, with a high near 91. Heat index values as high as 101. West wind around 6 mph.
Tonight
Mostly clear, with a low around 70. Calm wind becoming east around 5 mph after midnight.
Friday
Sunny, with a high near 93. Heat index values as high as 100. East southeast wind 5 to 8 mph becoming south southwest in the afternoon.
Friday Night
Partly cloudy, with a low around 71. South wind 3 to 6 mph.
Saturday
Partly sunny, with a high near 91. South southwest wind 7 to 11 mph, with gusts as high as 18 mph.
Saturday Night
A chance of showers and thunderstorms before 1am, then showers likely and possibly a thunderstorm between 1am and 4am, then showers likely after 4am. Mostly cloudy, with a low around 67. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 80. Chance of precipitation is 50%.
Sunday Night
Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Low around 62. Chance of precipitation is 80%.
Monday
A chance of showers before 1pm. Mostly cloudy, with a high near 73. Chance of precipitation is 50%.
Monday Night
A chance of showers after 1am. Mostly cloudy, with a low around 57. Chance of precipitation is 30%.
Tuesday
Partly sunny, with a high near 72.
Tuesday Night
Partly cloudy, with a low around 56.
Wednesday
Partly sunny, with a high near 76.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Brunswick MO
 39.43°N 93.11°W (Elev. 699 ft)
Last Update:
4:51 am CDT Sep 17, 2026
Forecast Valid:
12pm CDT Sep 17, 2026-6pm CDT Sep 23, 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