Areas of Dangerous Heat and Severe Thunderstorms

Dangerous heat will persist across the Southwest U.S. through Friday with daytime highs of 110-115°F. Heat across the southern Plains will briefly ease to near-normal by late week before returning over much of the Plains into next week. Scattered strong to severe thunderstorms are possible across parts of the Northeast U.S. on Thursday. Damaging wind, hail, and a tornado or two are possible. Read More >

Current conditions at

St. Joseph, Rosecrans Memorial Airport (KSTJ)

Lat: 39.77°NLon: 94.91°WElev: 823ft.

Fair

75°F

24°C

Humidity 79%
Wind Speed NW 6 mph
Barometer 30.01 in (1015.5 mb)
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Last update 26 Aug 7:53 pm CDT
Extended Forecast for

Union Star MO

  • Tonight

    Tonight: Clear, with a low around 63. North northwest wind around 5 mph becoming calm  in the evening.

    Low: 63 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 83. Calm wind becoming north around 6 mph in the afternoon.

    High: 83 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 63. Calm wind becoming north northeast around 5 mph.

    Low: 63 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 85. Calm wind becoming south southeast 5 to 7 mph in the morning.

    High: 85 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 68. South southeast wind 6 to 10 mph, with gusts as high as 18 mph.

    Low: 68 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 90. Breezy.

    High: 90 °F

    Partly Sunny
    then Mostly
    Sunny and
    Breezy

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 74.

    Low: 74 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 96. Breezy.

    High: 96 °F

    Mostly Sunny
    and Breezy

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 77.

    Low: 77 °F

    Partly Cloudy

Detailed Forecast

Tonight
Clear, with a low around 63. North northwest wind around 5 mph becoming calm in the evening.
Thursday
Sunny, with a high near 83. Calm wind becoming north around 6 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 63. Calm wind becoming north northeast around 5 mph.
Friday
Sunny, with a high near 85. Calm wind becoming south southeast 5 to 7 mph in the morning.
Friday Night
Partly cloudy, with a low around 68. South southeast wind 6 to 10 mph, with gusts as high as 18 mph.
Saturday
Mostly sunny, with a high near 90. Breezy.
Saturday Night
Partly cloudy, with a low around 74.
Sunday
Mostly sunny, with a high near 96. Breezy.
Sunday Night
Partly cloudy, with a low around 77.
Monday
Mostly sunny, with a high near 94.
Monday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 74. Chance of precipitation is 30%.
Tuesday
Mostly sunny, with a high near 91.
Tuesday Night
Partly cloudy, with a low around 72.
Wednesday
Mostly sunny, with a high near 91.
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ABOUT THIS FORECAST

 
Point Forecast:
Union Star MO
 39.99°N 94.6°W (Elev. 958 ft)
6:22 pm CDT Aug 26, 2026
8pm CDT Aug 26, 2026-6pm CDT Sep 2, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database