Heavy to Excessive Rains in The Four Corners Region and Midwest; Heat Persists in the South-Central U.S.

Repeated rounds of showers and thunderstorms could bring a flash flooding threat across the Four Corners region and from the mid-Mississippi Valley into the lower Great Lakes. Hot temperatures and high humidity will continue to challenge daily records from the Southern Plains to the lower Mississippi Valley. Read More >

Current conditions at

Platteville Municipal Airport (KPVB)

Lat: 42.69°NLon: 90.44°WElev: 1020ft.

Fair

66°F

19°C

Humidity 67%
Wind Speed E 10 mph
Barometer 30.34 in
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 16 Sep 9:55 am CDT
Extended Forecast for

Lancaster WI

  • Today

    Today: Mostly cloudy, with a high near 72. East wind 6 to 8 mph.

    High: 72 °F

    Mostly Cloudy

  • Tonight

    Tonight: A chance of showers and thunderstorms between 1am and 4am, then a chance of showers after 4am.  Mostly cloudy, with a low around 62. East wind 3 to 5 mph.  Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 62 °F

    Mostly Cloudy
    then Chance
    Showers

  • Thursday

    Thursday: A 20 percent chance of showers before 9am.  Mostly cloudy, with a high near 76. Calm wind becoming northeast around 5 mph.

    High: 76 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Thursday Night

    Thursday Night: A 20 percent chance of showers after 1am.  Mostly cloudy, with a low around 60. Calm wind becoming east around 5 mph after midnight.

    Low: 60 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Friday

    Friday: Showers likely, then showers and possibly a thunderstorm after 1pm.  High near 72. Southeast wind 8 to 13 mph.  Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 72 °F

    Showers

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm.  Low around 63. Breezy, with an east wind 13 to 16 mph.  Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.

    Low: 63 °F

    T-storms and
    Breezy

  • Saturday

    Saturday: Showers likely and possibly a thunderstorm.  Mostly cloudy, with a high near 76. South wind around 11 mph becoming north in the afternoon.  Chance of precipitation is 70%.

    High: 76 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: A 50 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 59. Northeast wind 9 to 14 mph.

    Low: 59 °F

    Chance
    Showers

  • Sunday

    Sunday: A 40 percent chance of showers.  Mostly cloudy, with a high near 68. East wind around 14 mph.

    High: 68 °F

    Chance
    Showers

Detailed Forecast

Today
Mostly cloudy, with a high near 72. East wind 6 to 8 mph.
Tonight
A chance of showers and thunderstorms between 1am and 4am, then a chance of showers after 4am. Mostly cloudy, with a low around 62. East wind 3 to 5 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
A 20 percent chance of showers before 9am. Mostly cloudy, with a high near 76. Calm wind becoming northeast around 5 mph.
Thursday Night
A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 60. Calm wind becoming east around 5 mph after midnight.
Friday
Showers likely, then showers and possibly a thunderstorm after 1pm. High near 72. Southeast wind 8 to 13 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Friday Night
Showers and possibly a thunderstorm. Low around 63. Breezy, with an east wind 13 to 16 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Saturday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 76. South wind around 11 mph becoming north in the afternoon. Chance of precipitation is 70%.
Saturday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 59. Northeast wind 9 to 14 mph.
Sunday
A 40 percent chance of showers. Mostly cloudy, with a high near 68. East wind around 14 mph.
Sunday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 57. Breezy, with an east wind 9 to 16 mph.
Monday
A 40 percent chance of showers. Mostly cloudy, with a high near 68. Northeast wind around 11 mph.
Monday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 55. Northeast wind 6 to 10 mph.
Tuesday
A 30 percent chance of showers. Partly sunny, with a high near 71. Northeast wind 6 to 8 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Lancaster WI
 42.85°N 90.71°W
9:22 am CDT Sep 16, 2026
10am CDT Sep 16, 2026-6pm CDT Sep 22, 2026
 
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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