Dangerous Heat in the Southwest; Severe Thunderstorms and Heavy Rain in the Northeast and Mid-Atlantic

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. Strong to severe thunderstorms may produce damaging wind, hail, a tornado or two, heavy rain and flash flooding across parts of the Mid-Atlantic and Northeast. Heavy rainfall threat continues across the Gulf Coast. Read More >

Hazardous Weather Conditions

Current conditions at

St. Joseph, Rosecrans Memorial Airport (KSTJ)

Lat: 39.77°NLon: 94.91°WElev: 823ft.

Fair

73°F

23°C

Humidity 76%
Wind Speed Calm
Barometer 30.13 in (1019.6 mb)
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Last update 27 Aug 9:53 am CDT
Extended Forecast for

De Kalb MO

  • Today

    Today: Sunny, with a high near 84. Calm wind becoming north around 5 mph in the afternoon.

    High: 84 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 63. Light and variable wind.

    Low: 63 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 85. Calm wind becoming south southeast around 6 mph in the afternoon.

    High: 85 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 69. Southeast wind 6 to 10 mph, with gusts as high as 18 mph.

    Low: 69 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 90. South wind 10 to 16 mph, with gusts as high as 28 mph.

    High: 90 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 76.

    Low: 76 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 95.

    High: 95 °F

    Mostly Sunny

  • Sunday Night

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

    Low: 77 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 93.

    High: 93 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 84. Calm wind becoming north around 5 mph in the afternoon.
Tonight
Mostly clear, with a low around 63. Light and variable wind.
Friday
Sunny, with a high near 85. Calm wind becoming south southeast around 6 mph in the afternoon.
Friday Night
Partly cloudy, with a low around 69. Southeast wind 6 to 10 mph, with gusts as high as 18 mph.
Saturday
Mostly sunny, with a high near 90. South wind 10 to 16 mph, with gusts as high as 28 mph.
Saturday Night
Partly cloudy, with a low around 76.
Sunday
Mostly sunny, with a high near 95.
Sunday Night
Partly cloudy, with a low around 77.
Monday
Mostly sunny, with a high near 93.
Monday Night
A chance of showers after 1am. Partly cloudy, with a low around 75. Chance of precipitation is 30%.
Tuesday
Mostly sunny, with a high near 91.
Tuesday Night
Mostly clear, with a low around 75.
Wednesday
Mostly sunny, with a high near 91.
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ABOUT THIS FORECAST

 
Point Forecast:
De Kalb MO
 39.59°N 94.91°W (Elev. 1047 ft)
6:11 am CDT Aug 27, 2026
10am CDT Aug 27, 2026-6pm CDT Sep 2, 2026
 
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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