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

Above Average Temperatures for Most Today; Winter Weather Returns to the Upper Midwest and Great Lakes

Well above average temperatures are forecast today into Wednesday over most of the lower 48 states away from the Gulf Coast. A storm system passing across southern Canada will bring a wintry mix to the upper Great Lakes today. A trailing cold front will then bring the wintry mix from the central Appalachians through the Northeast U.S. Wednesday and Thursday. Read More >

Hazardous Weather Conditions

Current conditions at

Watertown (KRYV)

Lat: 43.17°NLon: 88.72°WElev: 814ft.

Overcast

38°F

3°C

Humidity 73%
Wind Speed SW 13 mph
Barometer 29.53 in
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Wind Chill30°F (-1°C)
Last update 13 Jan 7:55 am CST
Extended Forecast for

Oconomowoc WI

  • Today

    Today: A 20 percent chance of rain after 4pm. Partly sunny, with a high near 46. West wind around 15 mph, with gusts as high as 30 mph.

    High: 46 °F

    Partly Sunny
    then Slight
    Chance Rain

  • Tonight

    Tonight: A slight chance of rain and snow before 3am, then a chance of snow. Cloudy, with a low around 20. Blustery, with a west wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 30%.

    Low: 20 °F

    Slight Chance
    Rain then
    Chance
    Rain/Snow and
    Blustery

  • Wednesday

    Wednesday: A 20 percent chance of snow before noon. Partly sunny, with a high near 23. Blustery, with a north wind 15 to 20 mph, with gusts as high as 35 mph.

    High: 23 °F

    Blustery.
    Slight Chance
    Snow then
    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 9. Wind chill values between zero and 5. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 9 °F

    Partly Cloudy

  • Thursday

    Thursday: Increasing clouds, with a high near 24. Northwest wind 5 to 10 mph becoming southwest in the afternoon.

    High: 24 °F

    Increasing
    Clouds

  • Thursday Night

    Thursday Night: Snow. Low around 20. Southwest wind around 10 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.

    Low: 20 °F

    Snow

  • Friday

    Friday: Snow. High near 32. West wind 10 to 15 mph. Chance of precipitation is 80%.

    High: 32 °F

    Snow

  • Friday Night

    Friday Night: Snow likely, mainly after midnight. Mostly cloudy, with a low around 11. West wind around 10 mph. Chance of precipitation is 60%.

    Low: 11 °F

    Snow Likely

  • Saturday

    Saturday: A 50 percent chance of snow. Mostly cloudy, with a high near 17.

    High: 17 °F

    Chance Snow

Detailed Forecast

Today
A 20 percent chance of rain after 4pm. Partly sunny, with a high near 46. West wind around 15 mph, with gusts as high as 30 mph.
Tonight
A slight chance of rain and snow before 3am, then a chance of snow. Cloudy, with a low around 20. Blustery, with a west wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 30%.
Wednesday
A 20 percent chance of snow before noon. Partly sunny, with a high near 23. Blustery, with a north wind 15 to 20 mph, with gusts as high as 35 mph.
Wednesday Night
Partly cloudy, with a low around 9. Wind chill values between zero and 5. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.
Thursday
Increasing clouds, with a high near 24. Northwest wind 5 to 10 mph becoming southwest in the afternoon.
Thursday Night
Snow. Low around 20. Southwest wind around 10 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.
Friday
Snow. High near 32. West wind 10 to 15 mph. Chance of precipitation is 80%.
Friday Night
Snow likely, mainly after midnight. Mostly cloudy, with a low around 11. West wind around 10 mph. Chance of precipitation is 60%.
Saturday
A 50 percent chance of snow. Mostly cloudy, with a high near 17.
Saturday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 4.
Sunday
A 20 percent chance of snow. Partly sunny, with a high near 14.
Sunday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 1.
M.L.King Day
Partly sunny, with a high near 15.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Oconomowoc WI
 43.11°N 88.51°W (Elev. 860 ft)
Last Update:
7:36 am CST Jan 13, 2026
Forecast Valid:
8am CST Jan 13, 2026-6pm CST Jan 19, 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