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

De Kalb MO

  • Memorial Day

    Memorial Day: Sunny, with a high near 84. South wind 9 to 13 mph, with gusts as high as 18 mph.

    High: 84 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 61. South southeast wind 6 to 10 mph, with gusts as high as 18 mph.

    Low: 61 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 85. Southeast wind 5 to 9 mph.

    High: 85 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 61. East southeast wind 5 to 9 mph becoming light after midnight.

    Low: 61 °F

    Decreasing
    Clouds

  • Wednesday

    Wednesday: A chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 85. Light east southeast wind becoming east 5 to 9 mph in the morning. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 85 °F

    Sunny then
    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 65.

    Low: 65 °F

    Mostly Cloudy

  • Thursday

    Thursday: A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 84. Chance of precipitation is 40%.

    High: 84 °F

    Chance
    Showers then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers. Mostly cloudy, with a low around 65. Chance of precipitation is 40%.

    Low: 65 °F

    Chance
    Showers

  • Friday

    Friday: A chance of showers. Mostly cloudy, with a high near 78. Chance of precipitation is 50%.

    High: 78 °F

    Chance
    Showers

Detailed Forecast

Memorial Day
Sunny, with a high near 84. South wind 9 to 13 mph, with gusts as high as 18 mph.
Tonight
Mostly clear, with a low around 61. South southeast wind 6 to 10 mph, with gusts as high as 18 mph.
Tuesday
Mostly sunny, with a high near 85. Southeast wind 5 to 9 mph.
Tuesday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 61. East southeast wind 5 to 9 mph becoming light after midnight.
Wednesday
A chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 85. Light east southeast wind becoming east 5 to 9 mph in the morning. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Mostly cloudy, with a low around 65.
Thursday
A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 84. Chance of precipitation is 40%.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 65. Chance of precipitation is 40%.
Friday
A chance of showers. Mostly cloudy, with a high near 78. Chance of precipitation is 50%.
Friday Night
A chance of showers after 1am. Mostly cloudy, with a low around 62. Chance of precipitation is 30%.
Saturday
Mostly cloudy, with a high near 79.
Saturday Night
Mostly cloudy, with a low around 60.
Sunday
Mostly sunny, with a high near 81.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
De Kalb MO
 39.59°N 94.91°W (Elev. 1047 ft)
Last Update:
1:26 pm CDT May 25, 2026
Forecast Valid:
1pm CDT May 25, 2026-6pm CDT May 31, 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