SULLIVAN, WI 53178 Weather Forecast & Current Conditions
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  53178 WEATHER WARNINGS (SEVERE T-STORM & TORNADO)
 CURRENT WEATHER

WATERTOWN, WI
Current Weather
5:30 PM CDT APR 17, 2026
Overcast
Thunder Rain
NA
Feels Like: NA
Dewpoint: NA
Rel. Hum.: NA%
Visibility: 7 miles
Wind: NE at 6 mph
Pressure:
Last 72 hours

Local Area Snow Depth

Wisconsin Current Weather

Wisconsin MOS Forecast Weather


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(Automated weather data from NWS/FAA)
  53178 WEATHER FORECAST
10-Day model forecast maps
2025 Hurricanes

SULLIVAN, WI 53178
Weather Forecast

 Snowfall Forecast pages
Snow Depth pages
TONIGHT
Light showers and chance of thunderstorms until early morning, then chance of light showers early in the morning. Patchy fog in the late evening and overnight. Lows in the mid 60s. Southeast winds up to 10 mph. Chance of precipitation 90 percent.
TUESDAY
Mostly cloudy. Patchy fog in the morning. Slight chance of thunderstorms in the morning. Chance of light showers through the day. Slight chance of thunderstorms in the afternoon. Highs in the mid 80s. West winds up to 5 mph. Chance of precipitation 30 percent.
TUESDAY NIGHT
Partly cloudy until early morning then becoming mostly cloudy. Slight chance of light showers and thunderstorms in the evening. Slight chance of light showers and thunderstorms early in the morning. Lows in the mid 60s. East winds up to 5 mph shifting to the southeast after midnight. Chance of precipitation 20 percent.
WEDNESDAY
Very warm and humid. Mostly cloudy in the morning then clearing. A 30 percent chance of light showers and thunderstorms. Highs around 90. South winds 5 to 15 mph shifting to the southwest 15 to 20 mph in the afternoon. Highest heat index readings 96 to 101 in the afternoon.
WEDNESDAY NIGHT
Partly cloudy. Showers likely and chance of thunderstorms through around midnight, then chance of light showers and thunderstorms after midnight. Lows in the mid 60s. Southwest winds 5 to 15 mph. Chance of precipitation 70 percent.
THURSDAY
Partly sunny. Chance of light showers in the morning, then showers and chance of thunderstorms in the afternoon. Highs in the mid 80s. Chance of precipitation 80 percent.
THURSDAY NIGHT
Mostly cloudy with rain showers likely and chance of thunderstorms through around midnight, then partly cloudy after midnight. Cooler. Lows in the mid 50s. Chance of precipitation 70 percent.
FRIDAY
Sunny. Highs in the lower 80s.
FRIDAY NIGHT
Mostly clear. Lows in the upper 50s.
SATURDAY
Mostly sunny. A 30 percent chance of light showers and thunderstorms in the afternoon. Highs in the lower 80s.
SATURDAY NIGHT
Partly cloudy with a 30 percent chance of light rain showers and thunderstorms. Lows in the mid 50s.
SUNDAY
Mostly sunny with a 20 percent chance of light rain showers. Highs in the mid 70s.
SUNDAY NIGHT
Partly cloudy with a 20 percent chance of light rain showers. Lows in the lower 50s.

  53178 WEATHER SATELLITE LOOPS
Visible Weather Satellite
SULLIVAN, WI 53178
Infrared Weather Satellite
SULLIVAN, WI 53178
  53178 WEATHER RADAR LOOP
NEXRAD Weather Radar
SULLIVAN, WI 53178
 MOS COMPUTER WEATHER FORECAST

WATERTOWN, WI 3 hourly weather forecast
weather forecast created  6:00 AM MDT  6/ 8/2026
Monday
8 JUN 2026		 SULLIVAN, WI 53178 weather forecast Day 1, 12 hours 1 PM 79° 81° Mostly Cloudy 73%
RAIN
***		 0% Thunder
( 36% severe)		 SE   9 69% 68°
High 80° SULLIVAN, WI 53178 weather forecast Day 1, 15 hours 4 PM 78° 80° Mostly Cloudy SE   9 71% 68°
Mostly Cloudy

Rain Likely

 SULLIVAN, WI 53178 weather forecast Day 1, 18 hours 7 PM 76° 77° Mostly Cloudy 85%
RAIN
***		 0% Thunder
( 41% severe)		 ESE   7 74% 67°
SULLIVAN, WI 53178 weather forecast Day 1, 21 hours 10 PM 71° 71° Mostly Cloudy SE   5 81% 65°
Tuesday
9 JUN 2026		 SULLIVAN, WI 53178 weather forecast Day 2, 0 hours 1 AM 69° 69° Mostly Cloudy 46%
RAIN
.1–.25 in		 0% Thunder
( 17% severe)		 SE   3 90% 66°
Low 63° SULLIVAN, WI 53178 weather forecast Day 2, 3 hours 4 AM 67° 67° Mostly Cloudy SSE   2 93% 65°
High 86° SULLIVAN, WI 53178 weather forecast Day 2, 6 hours 7 AM 67° 67° Mostly Cloudy 17%
RAIN
.25–.5 in		 0% Thunder
( 12% severe)		 S   2 93% 65°

Mostly Cloudy



 SULLIVAN, WI 53178 weather forecast Day 2, 9 hours 10 AM 73° 73° Mostly Cloudy WNW   5 84% 68°
SULLIVAN, WI 53178 weather forecast Day 2, 12 hours 1 PM 80° 83° Partly Cloudy 10%
RAIN
<.01 in		 0% Thunder
( 19% severe)		 WNW   5 69% 69°
SULLIVAN, WI 53178 weather forecast Day 2, 15 hours 4 PM 84° 88° Partly Cloudy NW   6 61% 69°
SULLIVAN, WI 53178 weather forecast Day 2, 18 hours 7 PM 84° 87° Mostly Cloudy 5%

 0% Thunder
( 14% severe)		 NNW   2 59% 68°
SULLIVAN, WI 53178 weather forecast Day 2, 21 hours 10 PM 74° 74° Partly Cloudy ESE   2 76% 66°
Wednesday
10 JUN 2026		 SULLIVAN, WI 53178 weather forecast Day 3, 0 hours 1 AM 70° 70° Partly Cloudy 64%
RAIN
>2 in		 0% Thunder
( 31% severe)		 SE   3 87% 66°
Low 65° SULLIVAN, WI 53178 weather forecast Day 3, 3 hours 4 AM 68° 68° Mostly Cloudy SE   5 93% 66°
High 93° SULLIVAN, WI 53178 weather forecast Day 3, 6 hours 7 AM 70° 70° Mostly Cloudy 11%
RAIN
.01–.1 in		 0% Thunder
( 16% severe)		 SSE   7 90% 67°

Mostly Cloudy



 SULLIVAN, WI 53178 weather forecast Day 3, 9 hours 10 AM 78° 80° Mostly Cloudy S   10 85% 73°
SULLIVAN, WI 53178 weather forecast Day 3, 15 hours 1 PM 87° 95° Partly Cloudy 16%
RAIN
<.01 in		 0% Thunder
( 41% severe)		 SSW   14 65% 74°
SULLIVAN, WI 53178 weather forecast Day 3, 18 hours 4 PM 91° 100° Partly Cloudy SSW   15 56% 73°
SULLIVAN, WI 53178 weather forecast Day 3, 21 hours 7 PM 88° 94° Partly Cloudy     SSW   15 57% 71°

WATERTOWN, WI extended weather forecast
Thursday
11 JUN 2026		 Friday
12 JUN 2026		 Saturday
13 JUN 2026		 Sunday
14 JUN 2026		 Monday
15 JUN 2026
Low 65° Low 58° Low 52° Low 50° Low 52°
High 87° High 77° High 70° High 68° High 71°
SULLIVAN, WI 53178 weather forecast Day 4 SULLIVAN, WI 53178 weather forecast Day 5 SULLIVAN, WI 53178 weather forecast Day 6 SULLIVAN, WI 53178 weather forecast Day 7 <!--SEARCHED_TOWN_NAME--> weather forecast Day 8
Mostly Cloudy
84% Rain		 Mostly Cloudy
69% Rain		 Partly Cloudy
26% Rain		 Partly Cloudy
22% Rain		 Mostly Cloudy
53% Rain
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