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

Heavy Rainfall Threat Continues in the Southwest on Monday; Record Warmth in the Plains and Midwest

Remnant moisture from Tropical Storm Rachel will persist over portions of the Great Basin and Southwest on Monday, bringing a potential heavy to excessive rainfall risk. Well above average and potentially record breaking temperatures will develop across the Plains and Midwest early this week, spreading into the Lower Mississippi Valley and Southeast midweek. Read More >

Hazardous Weather Conditions

Current conditions at

St. Joseph, Rosecrans Memorial Airport (KSTJ)

Lat: 39.77°NLon: 94.91°WElev: 823ft.

Fair

76°F

24°C

Humidity 58%
Wind Speed S 12 mph
Barometer 29.84 in (1009.5 mb)
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 11 Oct 10:53 pm CDT
Extended Forecast for

Lancaster KS

  • Tonight

    Tonight: Mostly clear, with a low around 71. South southwest wind around 13 mph, with gusts as high as 24 mph.

    Low: 71 °F

    Mostly Clear

  • Columbus Day

    Columbus Day: Sunny, with a high near 91. Breezy, with a south southwest wind 13 to 20 mph, with gusts as high as 31 mph.

    High: 91 °F

    Sunny then
    Sunny and
    Breezy

  • Monday Night

    Monday Night: Mostly clear, with a low around 67. South southwest wind 5 to 10 mph becoming light southwest after midnight. Winds could gust as high as 21 mph.

    Low: 67 °F

    Mostly Clear

  • Tuesday

    Tuesday: A chance of showers and thunderstorms after 1pm. Mostly cloudy through mid morning, then becoming sunny, with a high near 88. South wind 3 to 7 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 88 °F

    Mostly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm. Low around 62. South southwest wind around 6 mph becoming light and variable after midnight. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 62 °F

    Showers

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm. High near 74. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 74 °F

    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am. Low around 58. Chance of precipitation is 80%.

    Low: 58 °F

    Chance
    T-storms then
    Showers

  • Thursday

    Thursday: Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 71. Chance of precipitation is 70%.

    High: 71 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 49.

    Low: 49 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 71. South southwest wind around 13 mph, with gusts as high as 24 mph.
Columbus Day
Sunny, with a high near 91. Breezy, with a south southwest wind 13 to 20 mph, with gusts as high as 31 mph.
Monday Night
Mostly clear, with a low around 67. South southwest wind 5 to 10 mph becoming light southwest after midnight. Winds could gust as high as 21 mph.
Tuesday
A chance of showers and thunderstorms after 1pm. Mostly cloudy through mid morning, then becoming sunny, with a high near 88. South wind 3 to 7 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
Showers and possibly a thunderstorm. Low around 62. South southwest wind around 6 mph becoming light and variable after midnight. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday
Showers and possibly a thunderstorm. High near 74. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am. Low around 58. Chance of precipitation is 80%.
Thursday
Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 71. Chance of precipitation is 70%.
Thursday Night
Mostly cloudy, with a low around 49.
Friday
Mostly sunny, with a high near 62.
Friday Night
Mostly clear, with a low around 38.
Saturday
Sunny, with a high near 61.
Saturday Night
Clear, with a low around 40.
Sunday
Sunny, with a high near 69.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lancaster KS
 39.57°N 95.32°W (Elev. 1165 ft)
Last Update:
1:26 pm CDT Oct 11, 2026
Forecast Valid:
11pm CDT Oct 11, 2026-6pm CDT Oct 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