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

28°F

-2°C

Humidity 78%
Wind Speed Calm
Barometer 30.21 in (1023.5 mb)
Dewpoint 22°F (-6°C)
Visibility 10.00 mi
Last update 12 Feb 3:53 am CST
Extended Forecast for

Lancaster KS

  • Today

    Today: Partly sunny, with a high near 59. South southeast wind around 6 mph becoming calm in the afternoon.

    High: 59 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 31. Calm wind.

    Low: 31 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 60. Calm wind.

    High: 60 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A chance of rain, mainly after midnight. Mostly cloudy, with a low around 39. Calm wind becoming east around 5 mph after midnight. Chance of precipitation is 40%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 39 °F

    Chance Rain

  • Saturday

    Saturday: Rain likely. Cloudy, with a high near 54. East wind 5 to 8 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.

    High: 54 °F

    Rain Likely

  • Saturday Night

    Saturday Night: A chance of rain before midnight. Partly cloudy, with a low around 35. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 35 °F

    Chance Rain
    then Mostly
    Clear

  • Sunday

    Sunday: Sunny, with a high near 61.

    High: 61 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 37.

    Low: 37 °F

    Partly Cloudy

  • Washington's Birthday

    Washington's Birthday: Partly sunny, with a high near 65.

    High: 65 °F

    Partly Sunny

Detailed Forecast

Today
Partly sunny, with a high near 59. South southeast wind around 6 mph becoming calm in the afternoon.
Tonight
Mostly clear, with a low around 31. Calm wind.
Friday
Mostly sunny, with a high near 60. Calm wind.
Friday Night
A chance of rain, mainly after midnight. Mostly cloudy, with a low around 39. Calm wind becoming east around 5 mph after midnight. Chance of precipitation is 40%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
Rain likely. Cloudy, with a high near 54. East wind 5 to 8 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Saturday Night
A chance of rain before midnight. Partly cloudy, with a low around 35. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Sunday
Sunny, with a high near 61.
Sunday Night
Partly cloudy, with a low around 37.
Washington's Birthday
Partly sunny, with a high near 65.
Monday Night
Mostly cloudy, with a low around 47.
Tuesday
Mostly cloudy, with a high near 70.
Tuesday Night
Partly cloudy, with a low around 44.
Wednesday
Sunny, with a high near 66.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Lancaster KS
 39.57°N 95.32°W (Elev. 1165 ft)
Last Update:
3:17 am CST Feb 12, 2026
Forecast Valid:
4am CST Feb 12, 2026-6pm CST Feb 18, 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