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Current conditions at

St. Joseph, Rosecrans Memorial Airport (KSTJ)

Lat: 39.77°NLon: 94.91°WElev: 823ft.

Overcast

70°F

21°C

Humidity 66%
Wind Speed N 3 mph
Barometer 30.01 in (1015.4 mb)
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Last update 6 Oct 1:53 am CDT
Extended Forecast for

Union Star MO

  • Overnight

    Overnight: A chance of showers and thunderstorms, mainly after 4am. Mostly cloudy, with a low around 61. West southwest wind around 6 mph becoming northwest. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 61 °F

    Chance
    Showers

  • Monday

    Monday: Showers and thunderstorms before 10am, then showers likely between 10am and 1pm, then a chance of showers and thunderstorms after 1pm. High near 70. Light and variable wind becoming north 5 to 10 mph in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 70 °F

    Showers

  • Monday Night

    Monday Night: A chance of showers and thunderstorms before 1am, then showers likely and possibly a thunderstorm between 1am and 4am, then a chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 52. North wind around 10 mph, with gusts as high as 18 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 52 °F

    Chance
    T-storms then
    Showers
    Likely

  • Tuesday

    Tuesday: A chance of showers and thunderstorms before 7am. Mostly cloudy, then gradually becoming sunny, with a high near 66. North northeast wind 9 to 11 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 66 °F

    Chance
    Showers then
    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 43. North northeast wind 5 to 7 mph becoming calm after midnight.

    Low: 43 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 69.

    High: 69 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 50.

    Low: 50 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 72.

    High: 72 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 55.

    Low: 55 °F

    Partly Cloudy

Detailed Forecast

Overnight
A chance of showers and thunderstorms, mainly after 4am. Mostly cloudy, with a low around 61. West southwest wind around 6 mph becoming northwest. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday
Showers and thunderstorms before 10am, then showers likely between 10am and 1pm, then a chance of showers and thunderstorms after 1pm. High near 70. Light and variable wind becoming north 5 to 10 mph in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday Night
A chance of showers and thunderstorms before 1am, then showers likely and possibly a thunderstorm between 1am and 4am, then a chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 52. North wind around 10 mph, with gusts as high as 18 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday
A chance of showers and thunderstorms before 7am. Mostly cloudy, then gradually becoming sunny, with a high near 66. North northeast wind 9 to 11 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
Mostly clear, with a low around 43. North northeast wind 5 to 7 mph becoming calm after midnight.
Wednesday
Sunny, with a high near 69.
Wednesday Night
Mostly clear, with a low around 50.
Thursday
Mostly sunny, with a high near 72.
Thursday Night
Partly cloudy, with a low around 55.
Friday
Sunny, with a high near 78.
Friday Night
Mostly clear, with a low around 54.
Saturday
Sunny, with a high near 80.
Saturday Night
Mostly clear, with a low around 61.
Sunday
Sunny, with a high near 83.
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ABOUT THIS FORECAST

 
Point Forecast:
Union Star MO
 39.99°N 94.6°W (Elev. 958 ft)
Last Update:
2:26 am CDT Oct 6, 2025
Forecast Valid:
2am CDT Oct 6, 2025-6pm CDT Oct 12, 2025
 
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