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

Hazardous Weather Conditions

Current conditions at

St. Joseph, Rosecrans Memorial Airport (KSTJ)

Lat: 39.77°NLon: 94.91°WElev: 823ft.

Fog/Mist

48°F

9°C

Humidity 86%
Wind Speed Calm
Barometer 30.01 in (1016.6 mb)
Dewpoint 44°F (7°C)
Visibility 4.00 mi
Last update 4 Mar 5:53 pm CST
Extended Forecast for

Cosby MO

  • Tonight

    Tonight: A chance of showers and thunderstorms before midnight, then a slight chance of showers between midnight and 3am. Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 42. Light and variable wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 42 °F

    Chance
    Showers and
    Patchy Fog

  • Thursday

    Thursday: Patchy fog before 10am. Otherwise, partly sunny, with a high near 64. Light and variable wind becoming south 5 to 10 mph in the afternoon.

    High: 64 °F

    Patchy Fog
    then Mostly
    Sunny

  • Thursday Night

    Thursday Night: A chance of showers before 9pm, then a chance of showers and thunderstorms between 9pm and midnight, then showers and possibly a thunderstorm after midnight. Low around 52. Southeast wind 9 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 52 °F

    Chance
    T-storms then
    Showers

  • Friday

    Friday: Showers and possibly a thunderstorm. High near 72. Breezy, with a south wind 16 to 22 mph, with gusts as high as 34 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 72 °F

    Showers and
    Breezy

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm. Low around 35. South wind 14 to 17 mph becoming northwest after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 35 °F

    Showers then
    Chance
    Showers

  • Saturday

    Saturday: Mostly sunny, with a high near 54.

    High: 54 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 34.

    Low: 34 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 66.

    High: 66 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 45.

    Low: 45 °F

    Clear

Detailed Forecast

Tonight
A chance of showers and thunderstorms before midnight, then a slight chance of showers between midnight and 3am. Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 42. Light and variable wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
Patchy fog before 10am. Otherwise, partly sunny, with a high near 64. Light and variable wind becoming south 5 to 10 mph in the afternoon.
Thursday Night
A chance of showers before 9pm, then a chance of showers and thunderstorms between 9pm and midnight, then showers and possibly a thunderstorm after midnight. Low around 52. Southeast wind 9 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
Showers and possibly a thunderstorm. High near 72. Breezy, with a south wind 16 to 22 mph, with gusts as high as 34 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night
Showers and possibly a thunderstorm. Low around 35. South wind 14 to 17 mph becoming northwest after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Saturday
Mostly sunny, with a high near 54.
Saturday Night
Mostly clear, with a low around 34.
Sunday
Sunny, with a high near 66.
Sunday Night
Clear, with a low around 45.
Monday
Sunny, with a high near 76.
Monday Night
A chance of rain and thunderstorms. Partly cloudy, with a low around 56. Chance of precipitation is 40%.
Tuesday
Rain likely. Mostly cloudy, with a high near 71. Breezy. Chance of precipitation is 70%.
Tuesday Night
Rain and snow likely. Mostly cloudy, with a low around 31. Chance of precipitation is 60%.
Wednesday
A chance of rain and snow. Mostly sunny, with a high near 46. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Cosby MO
 39.86°N 94.68°W (Elev. 886 ft)
Last Update:
5:17 pm CST Mar 4, 2026
Forecast Valid:
6pm CST Mar 4, 2026-6pm CDT Mar 11, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation