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

84°F

29°C

Humidity 38%
Wind Speed S 13 mph
Barometer 30.04 in (1016.6 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 25 May 12:53 pm CDT
Extended Forecast for

3 Miles SSE Union Star MO

  • Memorial Day

    Memorial Day: Sunny, with a high near 84. South wind 11 to 14 mph, with gusts as high as 21 mph.

    High: 84 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 58. South southeast wind 6 to 13 mph, with gusts as high as 20 mph.

    Low: 58 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 84. East southeast wind 5 to 10 mph.

    High: 84 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 61. East southeast wind 5 to 9 mph becoming light after midnight.

    Low: 61 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A slight chance of showers, then a chance of showers and thunderstorms after 10am. Mostly sunny, with a high near 82. East wind 5 to 13 mph, with gusts as high as 18 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 82 °F

    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A slight chance of thunderstorms before 7pm, then a slight chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 64. Chance of precipitation is 20%.

    Low: 64 °F

    Slight Chance
    T-storms

  • Thursday

    Thursday: A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 82. Chance of precipitation is 60%.

    High: 82 °F

    Chance
    Showers then
    Showers
    Likely

  • Thursday Night

    Thursday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 64. Chance of precipitation is 70%.

    Low: 64 °F

    Showers
    Likely

  • Friday

    Friday: Showers likely, with thunderstorms also possible after 1pm. Cloudy, with a high near 78. Chance of precipitation is 70%.

    High: 78 °F

    Showers
    Likely

Detailed Forecast

Memorial Day
Sunny, with a high near 84. South wind 11 to 14 mph, with gusts as high as 21 mph.
Tonight
Mostly clear, with a low around 58. South southeast wind 6 to 13 mph, with gusts as high as 20 mph.
Tuesday
Mostly sunny, with a high near 84. East southeast wind 5 to 10 mph.
Tuesday Night
Partly cloudy, with a low around 61. East southeast wind 5 to 9 mph becoming light after midnight.
Wednesday
A slight chance of showers, then a chance of showers and thunderstorms after 10am. Mostly sunny, with a high near 82. East wind 5 to 13 mph, with gusts as high as 18 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
A slight chance of thunderstorms before 7pm, then a slight chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 64. Chance of precipitation is 20%.
Thursday
A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 82. Chance of precipitation is 60%.
Thursday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 64. Chance of precipitation is 70%.
Friday
Showers likely, with thunderstorms also possible after 1pm. Cloudy, with a high near 78. Chance of precipitation is 70%.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 62. Chance of precipitation is 40%.
Saturday
A chance of showers and thunderstorms. Mostly cloudy, with a high near 78. Chance of precipitation is 30%.
Saturday Night
Mostly cloudy, with a low around 60.
Sunday
Partly sunny, with a high near 78.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSE Union Star MO
 39.94°N 94.57°W (Elev. 981 ft)
Last Update:
11:38 am CDT May 25, 2026
Forecast Valid:
12pm CDT May 25, 2026-6pm CDT May 31, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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