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.

A Few Clouds

72°F

22°C

Humidity 73%
Wind Speed SW 5 mph
Barometer 30.22 in (1022.7 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 23 Jun 9:53 am CDT
Extended Forecast for

Lancaster KS

  • Today

    Today: Partly sunny, with a high near 77. South southeast wind 5 to 7 mph.

    High: 77 °F

    Partly Sunny

  • Tonight

    Tonight: A chance of showers and thunderstorms, mainly between 3am and 5am. Mostly cloudy, with a low around 64. Southeast wind around 6 mph becoming calm in the evening. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 64 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Wednesday

    Wednesday: A slight chance of showers before 7am. Patchy fog before 8am. Otherwise, mostly sunny, with a high near 82. Calm wind becoming north northeast around 5 mph in the afternoon. Chance of precipitation is 10%.

    High: 82 °F

    Slight Chance
    Showers and
    Patchy Fog
    then Sunny

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms after 1am. Increasing clouds, with a low around 63. Light east northeast wind. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 63 °F

    Partly Cloudy
    then Chance
    T-storms

  • Thursday

    Thursday: Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 77. East wind 3 to 7 mph. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 77 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 62. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 62 °F

    Chance
    T-storms then
    Showers
    Likely

  • Friday

    Friday: A chance of showers and thunderstorms before 1pm. Mostly cloudy, with a high near 80. Chance of precipitation is 40%.

    High: 80 °F

    Chance
    T-storms

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 67.

    Low: 67 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 88.

    High: 88 °F

    Mostly Sunny

Detailed Forecast

Today
Partly sunny, with a high near 77. South southeast wind 5 to 7 mph.
Tonight
A chance of showers and thunderstorms, mainly between 3am and 5am. Mostly cloudy, with a low around 64. Southeast wind around 6 mph becoming calm in the evening. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
A slight chance of showers before 7am. Patchy fog before 8am. Otherwise, mostly sunny, with a high near 82. Calm wind becoming north northeast around 5 mph in the afternoon. Chance of precipitation is 10%.
Wednesday Night
A chance of showers and thunderstorms after 1am. Increasing clouds, with a low around 63. Light east northeast wind. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 77. East wind 3 to 7 mph. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.
Thursday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 62. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.
Friday
A chance of showers and thunderstorms before 1pm. Mostly cloudy, with a high near 80. Chance of precipitation is 40%.
Friday Night
Mostly cloudy, with a low around 67.
Saturday
Mostly sunny, with a high near 88.
Saturday Night
Mostly clear, with a low around 75. Breezy.
Sunday
Sunny, with a high near 93. Breezy.
Sunday Night
Mostly clear, with a low around 77. Breezy.
Monday
Sunny, with a high near 93. Breezy.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lancaster KS
 39.57°N 95.32°W (Elev. 1165 ft)
Last Update:
9:27 am CDT Jun 23, 2026
Forecast Valid:
10am CDT Jun 23, 2026-6pm CDT Jun 29, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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