Lake-effect Snow and Whiteout Conditions in the Great Lakes Region; Below-average Temperatures in the East

Heavy lake-effect and lake-enhanced snow will persist downwind of the Great Lakes and produce some whiteout conditions that could cause difficult travel conditions. A coastal low will produce moderate to heavy snow over parts of southern and eastern New England into the afternoon. Below average temperatures are expected across the eastern U.S., particularly with chilly morning temperatures. Read More >

Current conditions at

Platteville Municipal Airport (KPVB)

Lat: 42.69°NLon: 90.44°WElev: 1020ft.

Overcast

15°F

-9°C

Humidity 90%
Wind Speed W 9 mph
Barometer 29.84 in
Dewpoint 13°F (-11°C)
Visibility 10.00 mi
Wind Chill3°F (-16°C)
Last update 18 Jan 7:35 pm CST
Extended Forecast for

5 Miles SW Lancaster WI

Cold Weather Advisory January 19, 03:00am until January 19, 12:00pm
Click here for hazard details and duration
Cold Weather Advisory
  • Tonight

    Tonight: A 30 percent chance of snow, mainly before 9pm.  Patchy blowing snow after 10pm. Mostly cloudy, with a low around -6. Wind chill values as low as -26. Blustery, with a northwest wind 13 to 22 mph, with gusts as high as 33 mph.

    Low: -6 °F

    Chance Snow
    and Patchy
    Blowing Snow

  • M.L.King Day

    M.L.King Day: Partly sunny and cold, with a high near 4. Wind chill values as low as -28. Blustery, with a northwest wind 13 to 18 mph, with gusts as high as 30 mph.

    High: 4 °F

    Cold and
    Blustery

  • Monday Night

    Monday Night: Partly cloudy, with a low around -4. Wind chill values as low as -14. West wind 5 to 9 mph.

    Low: -4 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 17. Wind chill values as low as -13. West wind 5 to 7 mph becoming south in the afternoon.

    High: 17 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Snow likely, mainly after midnight.  Mostly cloudy, with a low around 10. South wind around 6 mph becoming west after midnight.  Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.

    Low: 10 °F

    Snow Likely

  • Wednesday

    Wednesday: A 20 percent chance of snow after noon.  Partly sunny, with a high near 22. West wind 6 to 14 mph, with gusts as high as 22 mph.

    High: 22 °F

    Partly Sunny
    then Slight
    Chance Snow

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 3. West wind 9 to 11 mph, with gusts as high as 20 mph.

    Low: 3 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 14. West wind 8 to 13 mph.

    High: 14 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 1. West wind around 7 mph becoming northwest after midnight.

    Low: 1 °F

    Mostly Cloudy

Detailed Forecast

Tonight
A 30 percent chance of snow, mainly before 9pm. Patchy blowing snow after 10pm. Mostly cloudy, with a low around -6. Wind chill values as low as -26. Blustery, with a northwest wind 13 to 22 mph, with gusts as high as 33 mph.
M.L.King Day
Partly sunny and cold, with a high near 4. Wind chill values as low as -28. Blustery, with a northwest wind 13 to 18 mph, with gusts as high as 30 mph.
Monday Night
Partly cloudy, with a low around -4. Wind chill values as low as -14. West wind 5 to 9 mph.
Tuesday
Mostly sunny, with a high near 17. Wind chill values as low as -13. West wind 5 to 7 mph becoming south in the afternoon.
Tuesday Night
Snow likely, mainly after midnight. Mostly cloudy, with a low around 10. South wind around 6 mph becoming west after midnight. Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.
Wednesday
A 20 percent chance of snow after noon. Partly sunny, with a high near 22. West wind 6 to 14 mph, with gusts as high as 22 mph.
Wednesday Night
Partly cloudy, with a low around 3. West wind 9 to 11 mph, with gusts as high as 20 mph.
Thursday
Mostly sunny, with a high near 14. West wind 8 to 13 mph.
Thursday Night
Mostly cloudy, with a low around 1. West wind around 7 mph becoming northwest after midnight.
Friday
A 20 percent chance of snow. Partly sunny, with a high near 11. Northwest wind 7 to 10 mph.
Friday Night
Partly cloudy, with a low around -8. North wind around 8 mph.
Saturday
Partly sunny and cold, with a high near 3. North wind 8 to 10 mph.
Saturday Night
A 20 percent chance of snow. Mostly cloudy, with a low around -11. North wind 7 to 9 mph.
Sunday
A 20 percent chance of snow. Mostly sunny, with a high near 6. North wind 7 to 9 mph becoming west in the afternoon.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SW Lancaster WI
 42.78°N 90.77°W
6:21 pm CST Jan 18, 2026
7pm CST Jan 18, 2026-6pm CST Jan 25, 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