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

St. Joseph, Rosecrans Memorial Airport (KSTJ)

Lat: 39.77°NLon: 94.91°WElev: 823ft.

Fog

71°F

22°C

Humidity 100%
Wind Speed S 3 mph
Barometer 30.14 in (1020.0 mb)
Dewpoint 71°F (22°C)
Visibility 0.50 mi
Last update 17 Sep 3:53 am CDT
Extended Forecast for

Savannah MO

  • Today

    Today: Patchy dense fog before 10am. Otherwise, partly sunny, then gradually becoming sunny, with a high near 86. Heat index values as high as 95. Light and variable wind.

    High: 86 °F

    Patchy Dense
    Fog then
    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 70. East northeast wind 3 to 7 mph.

    Low: 70 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 89. Heat index values as high as 98. Southeast wind 8 to 13 mph becoming south southwest in the afternoon. Winds could gust as high as 20 mph.

    High: 89 °F

    Sunny

  • Friday Night

    Friday Night: A chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 72. South wind 8 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 72 °F

    Partly Cloudy
    then Chance
    T-storms

  • Saturday

    Saturday: A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 4pm, then a chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 86. South southwest wind 8 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 86 °F

    Chance
    Showers then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 65. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 65 °F

    Showers
    Likely

  • Sunday

    Sunday: Showers likely, then showers and possibly a thunderstorm after 1pm. High near 72. Chance of precipitation is 80%.

    High: 72 °F

    Showers

  • Sunday Night

    Sunday Night: Showers likely and possibly a thunderstorm. Cloudy, with a low around 61. Chance of precipitation is 70%.

    Low: 61 °F

    Showers
    Likely

  • Monday

    Monday: A chance of showers before 1pm. Mostly cloudy, with a high near 69. Chance of precipitation is 40%.

    High: 69 °F

    Chance
    Showers

Detailed Forecast

Today
Patchy dense fog before 10am. Otherwise, partly sunny, then gradually becoming sunny, with a high near 86. Heat index values as high as 95. Light and variable wind.
Tonight
Mostly clear, with a low around 70. East northeast wind 3 to 7 mph.
Friday
Sunny, with a high near 89. Heat index values as high as 98. Southeast wind 8 to 13 mph becoming south southwest in the afternoon. Winds could gust as high as 20 mph.
Friday Night
A chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 72. South wind 8 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday
A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 4pm, then a chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 86. South southwest wind 8 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 65. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Sunday
Showers likely, then showers and possibly a thunderstorm after 1pm. High near 72. Chance of precipitation is 80%.
Sunday Night
Showers likely and possibly a thunderstorm. Cloudy, with a low around 61. Chance of precipitation is 70%.
Monday
A chance of showers before 1pm. Mostly cloudy, with a high near 69. Chance of precipitation is 40%.
Monday Night
Mostly cloudy, with a low around 56.
Tuesday
Partly sunny, with a high near 69.
Tuesday Night
Partly cloudy, with a low around 56.
Wednesday
Partly sunny, with a high near 73.
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ABOUT THIS FORECAST

 
Point Forecast:
Savannah MO
 39.94°N 94.83°W (Elev. 1099 ft)
Last Update:
3:51 am CDT Sep 17, 2026
Forecast Valid:
4am 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