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

Rapid Warm-Up Forecast Across Much of the Lower 48 Today and Tuesday

Most of the U.S. starts the week calm and unseasonably warm. The Heartland will be warmest, with highs 25–30° above average. Only the Gulf Coast stays chilly. Rain today is limited to western Washington while lake effect snow continues east of Lake Ontario. Cooler air returns after Tuesday, bringing a wintry mix to the Midwest and Northeast by Wednesday. Read More >

Current conditions at

Milwaukee-Timmerman (KMWC)

Lat: 43.11°NLon: 88.03°WElev: 735ft.

Fair

36°F

2°C

Humidity 81%
Wind Speed SW 8 mph
Barometer 30.00 in
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Wind Chill30°F (-1°C)
Last update 12 Jan 7:15 pm CST
Extended Forecast for

Lannon WI

  • Tonight

    Tonight: A slight chance of rain between 3am and 5am, then a chance of sprinkles after 5am. Increasing clouds, with a low around 33. Southwest wind 10 to 15 mph. Chance of precipitation is 20%.

    Low: 33 °F

    Partly Cloudy
    then Slight
    Chance Rain

  • Tuesday

    Tuesday: A chance of sprinkles after 3pm. Partly sunny, with a high near 45. Breezy, with a west wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 45 °F

    Chance
    Sprinkles and
    Breezy

  • Tuesday Night

    Tuesday Night: A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 20. West wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 20 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Wednesday

    Wednesday: A 40 percent chance of snow. Partly sunny, with a high near 27. Windy, with a north wind 20 to 25 mph, with gusts as high as 30 mph.

    High: 27 °F

    Chance Snow
    and Windy

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 11. Blustery, with a north wind 10 to 20 mph, with gusts as high as 25 mph.

    Low: 11 °F

    Partly Cloudy
    and Blustery
    then Partly
    Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 23. Northwest wind 5 to 10 mph becoming southwest in the afternoon.

    High: 23 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Snow likely, mainly after midnight. Mostly cloudy, with a low around 19. Southwest wind 5 to 10 mph. Chance of precipitation is 60%.

    Low: 19 °F

    Snow Likely

  • Friday

    Friday: Snow likely. Cloudy, with a high near 30. West wind around 10 mph. Chance of precipitation is 70%.

    High: 30 °F

    Snow Likely

  • Friday Night

    Friday Night: Snow likely, mainly after midnight. Mostly cloudy, with a low around 14. Chance of precipitation is 60%.

    Low: 14 °F

    Snow Likely

Detailed Forecast

Tonight
A slight chance of rain between 3am and 5am, then a chance of sprinkles after 5am. Increasing clouds, with a low around 33. Southwest wind 10 to 15 mph. Chance of precipitation is 20%.
Tuesday
A chance of sprinkles after 3pm. Partly sunny, with a high near 45. Breezy, with a west wind 15 to 20 mph, with gusts as high as 30 mph.
Tuesday Night
A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 20. West wind 10 to 15 mph, with gusts as high as 25 mph.
Wednesday
A 40 percent chance of snow. Partly sunny, with a high near 27. Windy, with a north wind 20 to 25 mph, with gusts as high as 30 mph.
Wednesday Night
Partly cloudy, with a low around 11. Blustery, with a north wind 10 to 20 mph, with gusts as high as 25 mph.
Thursday
Mostly sunny, with a high near 23. Northwest wind 5 to 10 mph becoming southwest in the afternoon.
Thursday Night
Snow likely, mainly after midnight. Mostly cloudy, with a low around 19. Southwest wind 5 to 10 mph. Chance of precipitation is 60%.
Friday
Snow likely. Cloudy, with a high near 30. West wind around 10 mph. Chance of precipitation is 70%.
Friday Night
Snow likely, mainly after midnight. Mostly cloudy, with a low around 14. Chance of precipitation is 60%.
Saturday
A 50 percent chance of snow. Mostly cloudy, with a high near 18.
Saturday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 5.
Sunday
A 20 percent chance of snow. Partly sunny, with a high near 15.
Sunday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 4.
M.L.King Day
A 20 percent chance of snow. Partly sunny, with a high near 16.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lannon WI
 43.16°N 88.17°W (Elev. 899 ft)
Last Update:
3:13 pm CST Jan 12, 2026
Forecast Valid:
7pm CST Jan 12, 2026-6pm CST Jan 19, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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