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

Storm Systems to Impact the Central and Eastern U.S. Through the Weekend

Two storm systems will track through the central and eastern U.S. today through this weekend with areas of gusty winds, rain and heavy snow. Severe thunderstorms and heavy to excessive rainfall is forecast today from the Lower Mississippi River Valley to the Tennessee Valley. Damaging winds, a few tornadoes, and areas of flooding are possible. Read More >

Hazardous Weather Conditions

Current conditions at

Watertown (KRYV)

Lat: 43.17°NLon: 88.72°WElev: 814ft.

Overcast

33°F

1°C

Humidity 98%
Wind Speed S 3 mph
Barometer 30.06 in
Dewpoint 33°F (1°C)
Visibility 10.00 mi
Last update 10 Jan 3:15 am CST
Extended Forecast for

Oconomowoc WI

  • Overnight

    Overnight: Rain and snow likely before 5am, then snow. Low around 30. South wind around 5 mph becoming calm. Chance of precipitation is 80%. Total nighttime snow accumulation of less than a half inch possible.

    Low: 30 °F

    Rain/Snow

  • Saturday

    Saturday: Snow before 2pm, then a chance of snow after 3pm. High near 33. West wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Chance of precipitation is 100%. New snow accumulation of 1 to 2 inches possible.

    High: 33 °F

    Snow then
    Chance Snow

  • Saturday Night

    Saturday Night: A 50 percent chance of snow, mainly between 1am and 5am. Mostly cloudy, with a low around 19. Blustery, with a west wind 15 to 20 mph, with gusts as high as 30 mph.

    Low: 19 °F

    Chance Snow
    and Blustery

  • Sunday

    Sunday: Partly sunny, with a high near 30. Northwest wind 5 to 15 mph, with gusts as high as 25 mph.

    High: 30 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 23. Southwest wind 5 to 10 mph.

    Low: 23 °F

    Mostly Cloudy

  • Monday

    Monday: Sunny, with a high near 39. West wind 5 to 10 mph.

    High: 39 °F

    Sunny

  • Monday Night

    Monday Night: Increasing clouds, with a low around 30. Southwest wind 5 to 10 mph.

    Low: 30 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: A 30 percent chance of rain. Partly sunny, with a high near 44. West wind 10 to 15 mph.

    High: 44 °F

    Chance Rain

  • Tuesday Night

    Tuesday Night: A slight chance of rain before midnight, then a chance of rain and snow. Mostly cloudy, with a low around 24. Chance of precipitation is 30%.

    Low: 24 °F

    Slight Chance
    Rain then
    Chance
    Rain/Snow

Detailed Forecast

Overnight
Rain and snow likely before 5am, then snow. Low around 30. South wind around 5 mph becoming calm. Chance of precipitation is 80%. Total nighttime snow accumulation of less than a half inch possible.
Saturday
Snow before 2pm, then a chance of snow after 3pm. High near 33. West wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Chance of precipitation is 100%. New snow accumulation of 1 to 2 inches possible.
Saturday Night
A 50 percent chance of snow, mainly between 1am and 5am. Mostly cloudy, with a low around 19. Blustery, with a west wind 15 to 20 mph, with gusts as high as 30 mph.
Sunday
Partly sunny, with a high near 30. Northwest wind 5 to 15 mph, with gusts as high as 25 mph.
Sunday Night
Mostly cloudy, with a low around 23. Southwest wind 5 to 10 mph.
Monday
Sunny, with a high near 39. West wind 5 to 10 mph.
Monday Night
Increasing clouds, with a low around 30. Southwest wind 5 to 10 mph.
Tuesday
A 30 percent chance of rain. Partly sunny, with a high near 44. West wind 10 to 15 mph.
Tuesday Night
A slight chance of rain before midnight, then a chance of rain and snow. Mostly cloudy, with a low around 24. Chance of precipitation is 30%.
Wednesday
A 40 percent chance of snow. Mostly cloudy, with a high near 29.
Wednesday Night
Partly cloudy, with a low around 13.
Thursday
A 20 percent chance of snow. Partly sunny, with a high near 28.
Thursday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 22.
Friday
A 40 percent chance of snow. Mostly cloudy, with a high near 32.
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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:
3:21 am CST Jan 10, 2026
Forecast Valid:
3am CST Jan 10, 2026-6pm CST Jan 16, 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