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.

Fair

70°F

21°C

Humidity 22%
Wind Speed NE 9 mph
Barometer 30.14 in (1020.8 mb)
Dewpoint 29°F (-2°C)
Visibility 10.00 mi
Last update 19 Apr 5:53 pm CDT
Extended Forecast for

Union Star MO

  • Tonight

    Tonight: Partly cloudy, with a low around 39. North wind around 10 mph becoming east after midnight. Winds could gust as high as 18 mph.

    Low: 39 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 73. East southeast wind 10 to 16 mph becoming south in the afternoon. Winds could gust as high as 24 mph.

    High: 73 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 54. South southwest wind 14 to 17 mph, with gusts as high as 28 mph.

    Low: 54 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 82. Southwest wind 15 to 18 mph, with gusts as high as 26 mph.

    High: 82 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 56. South southwest wind 11 to 14 mph, with gusts as high as 21 mph.

    Low: 56 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 78. Breezy.

    High: 78 °F

    Mostly Sunny
    then Mostly
    Sunny and
    Breezy

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 62. Breezy.

    Low: 62 °F

    Partly Cloudy
    and Breezy

  • Thursday

    Thursday: A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 78. Breezy. Chance of precipitation is 70%.

    High: 78 °F

    Breezy.
    Chance
    Showers then
    Showers
    Likely

  • Thursday Night

    Thursday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 48. Breezy. Chance of precipitation is 60%.

    Low: 48 °F

    Showers
    Likely and
    Breezy

Detailed Forecast

Tonight
Partly cloudy, with a low around 39. North wind around 10 mph becoming east after midnight. Winds could gust as high as 18 mph.
Monday
Sunny, with a high near 73. East southeast wind 10 to 16 mph becoming south in the afternoon. Winds could gust as high as 24 mph.
Monday Night
Mostly clear, with a low around 54. South southwest wind 14 to 17 mph, with gusts as high as 28 mph.
Tuesday
Sunny, with a high near 82. Southwest wind 15 to 18 mph, with gusts as high as 26 mph.
Tuesday Night
Mostly clear, with a low around 56. South southwest wind 11 to 14 mph, with gusts as high as 21 mph.
Wednesday
Mostly sunny, with a high near 78. Breezy.
Wednesday Night
Partly cloudy, with a low around 62. Breezy.
Thursday
A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 78. Breezy. Chance of precipitation is 70%.
Thursday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 48. Breezy. Chance of precipitation is 60%.
Friday
Mostly sunny, with a high near 65.
Friday Night
Partly cloudy, with a low around 43.
Saturday
Partly sunny, with a high near 65.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 41. Chance of precipitation is 30%.
Sunday
A chance of showers. Partly sunny, with a high near 63. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Union Star MO
 39.99°N 94.6°W (Elev. 958 ft)
Last Update:
5:57 pm CDT Apr 19, 2026
Forecast Valid:
6pm CDT Apr 19, 2026-6pm CDT Apr 26, 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