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

Hazardous Weather Conditions

Current conditions at

Platteville Municipal Airport (KPVB)

Lat: 42.69°NLon: 90.44°WElev: 1020ft.

Fair

80°F

27°C

Humidity 98%
Wind Speed Calm
Barometer 29.94 in
Dewpoint 80°F (27°C)
Visibility 10.00 mi
Heat Index87°F (31°C)
Last update 1 Sep 8:35 pm CDT
Extended Forecast for

Potosi WI

  • Tonight

    Tonight: Partly cloudy, with a low around 73. Calm wind becoming south around 5 mph after midnight.

    Low: 73 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 90. Heat index values as high as 97. East wind 5 to 8 mph becoming west in the afternoon.

    High: 90 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers and thunderstorms, mainly between 4am and 5am. Mostly clear, with a low around 73. West wind around 5 mph becoming calm in the evening.

    Low: 73 °F

    Mostly Clear
    then Chance
    T-storms

  • Thursday

    Thursday: A 30 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 89. Heat index values as high as 95. Calm wind becoming south around 5 mph in the afternoon.

    High: 89 °F

    Chance
    T-storms then
    Chance
    Showers

  • Thursday Night

    Thursday Night: A 50 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 71. South wind around 5 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 71 °F

    Mostly Clear
    then Chance
    T-storms

  • Friday

    Friday: A 40 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 88. South wind around 6 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 88 °F

    Chance
    T-storms then
    Chance
    Showers

  • Friday Night

    Friday Night: A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 70. Calm wind.

    Low: 70 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Saturday

    Saturday: A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 87. Calm wind becoming east around 5 mph.

    High: 87 °F

    Slight Chance
    T-storms

  • Saturday Night

    Saturday Night: A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 68. Southeast wind 3 to 5 mph.

    Low: 68 °F

    Mostly Clear
    then Chance
    T-storms

Detailed Forecast

Tonight
Partly cloudy, with a low around 73. Calm wind becoming south around 5 mph after midnight.
Wednesday
Mostly sunny, with a high near 90. Heat index values as high as 97. East wind 5 to 8 mph becoming west in the afternoon.
Wednesday Night
A 30 percent chance of showers and thunderstorms, mainly between 4am and 5am. Mostly clear, with a low around 73. West wind around 5 mph becoming calm in the evening.
Thursday
A 30 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 89. Heat index values as high as 95. Calm wind becoming south around 5 mph in the afternoon.
Thursday Night
A 50 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 71. South wind around 5 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday
A 40 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 88. South wind around 6 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday Night
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 70. Calm wind.
Saturday
A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 87. Calm wind becoming east around 5 mph.
Saturday Night
A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 68. Southeast wind 3 to 5 mph.
Sunday
A chance of showers and thunderstorms before 1pm, then a slight chance of showers. Partly sunny, with a high near 84. Southeast wind around 5 mph. Chance of precipitation is 40%.
Sunday Night
A 20 percent chance of showers. Partly cloudy, with a low around 66. East wind 3 to 5 mph.
Labor Day
A 20 percent chance of showers. Partly sunny, with a high near 80. East wind 6 to 8 mph.
Monday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 61. East wind 7 to 9 mph.
Tuesday
A 30 percent chance of showers. Partly sunny, with a high near 79. Southeast wind 8 to 11 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Potosi WI
 42.67°N 90.72°W
Last Update:
6:41 pm CDT Sep 1, 2026
Forecast Valid:
9pm CDT Sep 1, 2026-6pm CDT Sep 8, 2026
 
Forecast Discussion
 
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Additional Resources

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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