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

Watertown (KRYV)

Lat: 43.17°NLon: 88.72°WElev: 814ft.

Fair

40°F

4°C

Humidity 79%
Wind Speed NE 12 G 26 mph
Barometer 29.76 in
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Wind Chill33°F (1°C)
Last update 22 Mar 8:15 am CDT
Extended Forecast for

Sullivan WI

  • Today

    Today: A chance of sprinkles with a slight chance of rain before 2pm, then a chance of sprinkles between 2pm and 4pm. Mostly cloudy, with a high near 42. North wind 10 to 15 mph. Chance of precipitation is 20%.

    High: 42 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Tonight

    Tonight: Partly cloudy, with a low around 24. North wind 5 to 15 mph.

    Low: 24 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 45. North wind around 5 mph.

    High: 45 °F

    Sunny

  • Monday Night

    Monday Night: Increasing clouds, with a low around 29. Calm wind becoming southeast around 5 mph in the evening.

    Low: 29 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 54. South wind 5 to 10 mph.

    High: 54 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 37. South wind around 5 mph.

    Low: 37 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A 20 percent chance of rain before 1pm. Mostly cloudy, with a high near 54. Southeast wind 5 to 10 mph.

    High: 54 °F

    Slight Chance
    Rain

  • Wednesday Night

    Wednesday Night: A 20 percent chance of rain before 1am. Mostly cloudy, with a low around 41. Southeast wind around 5 mph.

    Low: 41 °F

    Slight Chance
    Rain

  • Thursday

    Thursday: A 20 percent chance of rain. Partly sunny, with a high near 61.

    High: 61 °F

    Slight Chance
    Rain

Detailed Forecast

Today
A chance of sprinkles with a slight chance of rain before 2pm, then a chance of sprinkles between 2pm and 4pm. Mostly cloudy, with a high near 42. North wind 10 to 15 mph. Chance of precipitation is 20%.
Tonight
Partly cloudy, with a low around 24. North wind 5 to 15 mph.
Monday
Sunny, with a high near 45. North wind around 5 mph.
Monday Night
Increasing clouds, with a low around 29. Calm wind becoming southeast around 5 mph in the evening.
Tuesday
Mostly cloudy, with a high near 54. South wind 5 to 10 mph.
Tuesday Night
Mostly cloudy, with a low around 37. South wind around 5 mph.
Wednesday
A 20 percent chance of rain before 1pm. Mostly cloudy, with a high near 54. Southeast wind 5 to 10 mph.
Wednesday Night
A 20 percent chance of rain before 1am. Mostly cloudy, with a low around 41. Southeast wind around 5 mph.
Thursday
A 20 percent chance of rain. Partly sunny, with a high near 61.
Thursday Night
Mostly cloudy, with a low around 27.
Friday
Partly sunny, with a high near 42.
Friday Night
Mostly clear, with a low around 26.
Saturday
Sunny, with a high near 51.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Sullivan WI
 43.02°N 88.6°W (Elev. 846 ft)
Last Update:
7:52 am CDT Mar 22, 2026
Forecast Valid:
8am CDT Mar 22, 2026-6pm CDT Mar 28, 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