National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Dangerous Heat and Possible Flooding

Dangerous heat will persist across the Southwest U.S. through Saturday with daytime highs of 110-115°F. Extreme Heat Warnings remain in effect. Dangerous heat will build across the southern Plains again beginning this weekend. Heavy to excessive rain over the Carolinas Friday may lead to isolated areas of flash flooding. Read More >

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 71%
Wind Speed S 8 mph
Barometer 30.04 in (1016.5 mb)
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Last update 29 Aug 2:53 am CDT
Extended Forecast for

Atchison KS

  • Overnight

    Overnight: Partly cloudy, with a low around 67. South southeast wind around 7 mph.

    Low: 67 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 93. Heat index values as high as 96. South wind 8 to 14 mph, with gusts as high as 26 mph.

    High: 93 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 76. South wind around 11 mph, with gusts as high as 23 mph.

    Low: 76 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny and hot, with a high near 97. Heat index values as high as 101. South wind 11 to 14 mph, with gusts as high as 25 mph.

    High: 97 °F

    Hot

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 78. South wind around 10 mph, with gusts as high as 21 mph.

    Low: 78 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny and hot, with a high near 97.

    High: 97 °F

    Hot

  • Monday Night

    Monday Night: Mostly clear, with a low around 78.

    Low: 78 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 97.

    High: 97 °F

    Hot

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 77.

    Low: 77 °F

    Mostly Clear

Detailed Forecast

Overnight
Partly cloudy, with a low around 67. South southeast wind around 7 mph.
Saturday
Mostly sunny, with a high near 93. Heat index values as high as 96. South wind 8 to 14 mph, with gusts as high as 26 mph.
Saturday Night
Partly cloudy, with a low around 76. South wind around 11 mph, with gusts as high as 23 mph.
Sunday
Mostly sunny and hot, with a high near 97. Heat index values as high as 101. South wind 11 to 14 mph, with gusts as high as 25 mph.
Sunday Night
Mostly clear, with a low around 78. South wind around 10 mph, with gusts as high as 21 mph.
Monday
Mostly sunny and hot, with a high near 97.
Monday Night
Mostly clear, with a low around 78.
Tuesday
Sunny and hot, with a high near 97.
Tuesday Night
Mostly clear, with a low around 77.
Wednesday
Sunny and hot, with a high near 97.
Wednesday Night
Mostly clear, with a low around 75.
Thursday
Mostly sunny, with a high near 96.
Thursday Night
Partly cloudy, with a low around 74.
Friday
Mostly sunny, with a high near 94.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Atchison KS
 39.57°N 95.14°W (Elev. 1004 ft)
Last Update:
2:26 am CDT Aug 29, 2026
Forecast Valid:
3am CDT Aug 29, 2026-6pm CDT Sep 4, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation