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.

A Few Clouds

55°F

13°C

Humidity 37%
Wind Speed N 10 mph
Barometer 30.09 in (1018.6 mb)
Dewpoint 29°F (-2°C)
Visibility 10.00 mi
Wind Chill52°F (11°C)
Last update 10 May 4:53 am CDT
Extended Forecast for

Union Star MO

  • Today

    Today: Mostly sunny, with a high near 70. North wind 7 to 9 mph.

    High: 70 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 49. Calm wind becoming south southwest around 6 mph after midnight.

    Low: 49 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 79. West southwest wind 5 to 11 mph.

    High: 79 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 58. South southwest wind 9 to 16 mph, with gusts as high as 26 mph.

    Low: 58 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 86. Breezy, with a south southwest wind 14 to 21 mph becoming west northwest in the afternoon. Winds could gust as high as 30 mph.

    High: 86 °F

    Sunny and
    Breezy then
    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 54.

    Low: 54 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 53.

    Low: 53 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 85. Breezy.

    High: 85 °F

    Mostly Sunny
    and Breezy

Detailed Forecast

Today
Mostly sunny, with a high near 70. North wind 7 to 9 mph.
Tonight
Mostly clear, with a low around 49. Calm wind becoming south southwest around 6 mph after midnight.
Monday
Sunny, with a high near 79. West southwest wind 5 to 11 mph.
Monday Night
Mostly clear, with a low around 58. South southwest wind 9 to 16 mph, with gusts as high as 26 mph.
Tuesday
Sunny, with a high near 86. Breezy, with a south southwest wind 14 to 21 mph becoming west northwest in the afternoon. Winds could gust as high as 30 mph.
Tuesday Night
Mostly clear, with a low around 54.
Wednesday
Sunny, with a high near 80.
Wednesday Night
Mostly clear, with a low around 53.
Thursday
Mostly sunny, with a high near 85. Breezy.
Thursday Night
Partly cloudy, with a low around 66. Breezy.
Friday
Mostly sunny, with a high near 93.
Friday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 67. Chance of precipitation is 30%.
Saturday
Mostly sunny, with a high near 92.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Union Star MO
 39.99°N 94.6°W (Elev. 958 ft)
Last Update:
1:26 am CDT May 10, 2026
Forecast Valid:
5am CDT May 10, 2026-6pm CDT May 16, 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