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

St. Joseph, Rosecrans Memorial Airport (KSTJ)

Lat: 39.77°NLon: 94.91°WElev: 823ft.

Fair

73°F

23°C

Humidity 38%
Wind Speed NE 8 mph
Barometer 30.00 in (1015.2 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 23 May 6:53 pm CDT
Extended Forecast for

5 Miles NNW Union Star MO

  • Tonight

    Tonight: Mostly cloudy during the early evening, then gradual clearing, with a low around 53. North wind around 6 mph becoming calm in the evening.

    Low: 53 °F

    Gradual
    Clearing

  • Sunday

    Sunday: Sunny, with a high near 81. Light south wind becoming south southeast 5 to 10 mph in the morning.

    High: 81 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 58. South wind 6 to 10 mph.

    Low: 58 °F

    Mostly Clear

  • Memorial Day

    Memorial Day: Sunny, with a high near 84. South southeast wind 6 to 13 mph.

    High: 84 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 62. Southeast wind 6 to 10 mph.

    Low: 62 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 82.

    High: 82 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 64. Chance of precipitation is 60%.

    Low: 64 °F

    Mostly Cloudy
    then Showers
    Likely

  • Wednesday

    Wednesday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 79. Chance of precipitation is 70%.

    High: 79 °F

    Chance
    T-storms then
    Showers
    Likely

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 64. Chance of precipitation is 40%.

    Low: 64 °F

    Chance
    T-storms

Detailed Forecast

Tonight
Mostly cloudy during the early evening, then gradual clearing, with a low around 53. North wind around 6 mph becoming calm in the evening.
Sunday
Sunny, with a high near 81. Light south wind becoming south southeast 5 to 10 mph in the morning.
Sunday Night
Mostly clear, with a low around 58. South wind 6 to 10 mph.
Memorial Day
Sunny, with a high near 84. South southeast wind 6 to 13 mph.
Monday Night
Mostly clear, with a low around 62. Southeast wind 6 to 10 mph.
Tuesday
Mostly sunny, with a high near 82.
Tuesday Night
Showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 64. Chance of precipitation is 60%.
Wednesday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 79. Chance of precipitation is 70%.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 64. Chance of precipitation is 40%.
Thursday
A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 80. Chance of precipitation is 70%.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 63. Chance of precipitation is 50%.
Friday
A chance of showers and thunderstorms. Mostly cloudy, with a high near 78. Chance of precipitation is 40%.
Friday Night
Mostly cloudy, with a low around 60.
Saturday
Partly sunny, with a high near 79.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles NNW Union Star MO
 40.05°N 94.63°W (Elev. 1053 ft)
Last Update:
6:11 pm CDT May 23, 2026
Forecast Valid:
7pm CDT May 23, 2026-6pm CDT May 30, 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