Sullivan, WI Weather Forecast & Current Conditions

Feedback E-mail the Weather

Quick Clicks

Weather World

Sullivan, WI Weather Maps

°F °C°F °C
Sullivan Weather Map
UTC Time: 9/21/2026, 02:15
Your Time:
Aeronautical Observation: Automated synoptic observations via NWS Gateway.
Auto-refresh in: 5:02

Sullivan, WI Regional Weather

Expires:202609210300;;794145
ASUS43 KMKX 210210
RWRWI 

WISCONSIN REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
900 PM CDT SUN SEP 20 2026

NOTE: "FAIR" INDICATES FEW OR NO CLOUDS BELOW 12,000 FEET WITH NO
SIGNIFICANT WEATHER AND/OR OBSTRUCTIONS TO VISIBILITY.


WIZ051-052-058>065-066-070>072-210300-
SOUTHEAST WISCONSIN
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
MILWAUKEE      CLOUDY    61  57  87 NE16G23   30.10R TC  16           
WAUKESHA       CLOUDY    59  54  82 NE12      30.12R TC  15           
MILWAUKEE/TIMM CLOUDY    59  55  88 NE17G23   30.14S TC  15           
RACINE         CLOUDY    63  58  83 NE20G29   30.11R TC  17           
KENOSHA        MOCLDY    63  59  88 NE15G22   30.10R TC  17           
FOND DU LAC    MOCLDY    57  49  74 NE13G24   30.17R TC  14           
SHEBOYGAN      MOCLDY    57  50  77 NE15G25   30.16R TC  14           
WEST BEND      CLOUDY    55  50  82 NE12      30.15S TC  13           
JUNEAU         CLOUDY    56  49  77 NE9G22    30.16R TC  13           
$$


SKY/WX - Weather  TMP - Temperature  DP - Dew Point  RH - Humidity
WIND - Wind Direction/Speed PRES - Barometric Pressure VSB - Visibility
WCI - Wind Chill Index E13G22 Wind - East Wind 13 mph/Gusts of 22 mph

Sullivan, WI

Late Afternoon
Rain Showers
55°13°
20%
Monday
Mostly Cloudy
62°/ 48° 17°/
0%
Tuesday
Partly Cloudy
62°/ 45° 17°/
0%
Wednesday
Sunny
62°/ 48° 17°/
0%
Thursday
Partly Cloudy
65°/ 48° 18°/
0%
Friday
Mostly Cloudy
68°/ 48° 20°/
0%
Saturday
Mostly Cloudy
68°/ 50° 20°/ 10°
0%
Sunday
Partly Cloudy
72°22°
0%

Day: Cloudy with a 20 percent chance of light showers. Northeast winds around 15 mph with gusts to around 30 mph.

Night: Cloudy. Lows in the mid 50s. Northeast winds 10 to 15 mph.

Waukesha, WI

Late Afternoon
Rain Showers
55°13°
50%
Monday
Mostly Cloudy
62°/ 48° 17°/
0%
Tuesday
Partly Cloudy
60°/ 48° 16°/
0%
Wednesday
Sunny
62°/ 48° 17°/
0%
Thursday
Partly Cloudy
62°/ 50° 17°/ 10°
0%
Friday
Mostly Cloudy
65°/ 48° 18°/
0%
Saturday
Partly Cloudy
68°/ 52° 20°/ 11°
0%
Sunday
Partly Cloudy
70°21°
0%

Day: Cloudy with a 50 percent chance of light showers. Northeast winds 15 to 20 mph.

Night: Cloudy. Lows in the mid 50s. Northeast winds 10 to 15 mph with gusts to around 30 mph.

Beaver Dam, WI

Late Afternoon
Mostly Cloudy
52°11°
0%
Monday
Mostly Cloudy
62°/ 48° 17°/
0%
Tuesday
Partly Cloudy
62°/ 45° 17°/
0%
Wednesday
Sunny
62°/ 45° 17°/
0%
Thursday
Partly Cloudy
65°/ 48° 18°/
0%
Friday
Mostly Cloudy
68°/ 48° 20°/
0%
Saturday
Partly Cloudy
68°/ 48° 20°/
0%
Sunday
Partly Cloudy
72°22°
0%

Day: Mostly cloudy. Northeast winds around 15 mph with gusts to around 30 mph.

Night: Mostly cloudy. Lows in the lower 50s. Northeast winds 10 to 15 mph.

Whitewater, WI

Late Afternoon
Rain Showers
55°13°
70%
Monday
Mostly Cloudy
62°/ 48° 17°/
20%
Tuesday
Partly Cloudy
62°/ 48° 17°/
0%
Wednesday
Partly Cloudy
62°/ 48° 17°/
0%
Thursday
Partly Cloudy
65°/ 48° 18°/
0%
Friday
Mostly Cloudy
65°/ 48° 18°/
0%
Saturday
Mostly Cloudy
68°/ 50° 20°/ 10°
0%
Sunday
Partly Cloudy
70°21°
0%

Day: Light showers likely. Northeast winds 10 to 15 mph with gusts to around 30 mph. Chance of showers 70 percent.

Night: Cloudy. Lows in the mid 50s. Northeast winds 10 to 15 mph with gusts to around 30 mph.

West Bend, WI

Late Afternoon
Mostly Cloudy
52°11°
0%
Monday
Mostly Cloudy
62°/ 48° 17°/
0%
Tuesday
Partly Cloudy
62°/ 48° 17°/
0%
Wednesday
Sunny
62°/ 48° 17°/
0%
Thursday
Partly Cloudy
62°/ 48° 17°/
0%
Friday
Mostly Cloudy
65°/ 48° 18°/
0%
Saturday
Partly Cloudy
68°/ 52° 20°/ 11°
0%
Sunday
Partly Cloudy
70°21°
0%

Day: Mostly cloudy. Northeast winds 15 to 20 mph.

Night: Mostly cloudy. Lows in the lower 50s. Northeast winds 5 to 15 mph with gusts to around 30 mph.

Madison, WI

Late Afternoon
Cloudy
55°13°
0%
Monday
Mostly Cloudy
62°/ 48° 17°/
0%
Tuesday
Partly Cloudy
62°/ 45° 17°/
0%
Wednesday
Sunny
65°/ 48° 18°/
0%
Thursday
Partly Cloudy
65°/ 48° 18°/
0%
Friday
Mostly Cloudy
68°/ 48° 20°/
0%
Saturday
Rain Showers
68°/ 52° 20°/ 11°
20%
Sunday
Rain Showers
72°22°
20%

Day: Cloudy. Northeast winds 10 to 15 mph.

Night: Cloudy. Lows in the mid 50s. Northeast winds 10 to 15 mph.

Janesville, WI

Late Afternoon
Rain Showers
55°13°
70%
Monday
Mostly Cloudy
62°/ 48° 17°/
0%
Tuesday
Partly Cloudy
62°/ 45° 17°/
0%
Wednesday
Sunny
62°/ 48° 17°/
0%
Thursday
Partly Cloudy
65°/ 48° 18°/
0%
Friday
Mostly Cloudy
65°/ 48° 18°/
0%
Saturday
Rain Showers
68°/ 50° 20°/ 10°
20%
Sunday
Partly Cloudy
70°21°
0%

Day: Light showers likely. Northeast winds around 15 mph with gusts to around 30 mph. Chance of showers 70 percent.

Night: Cloudy. Lows in the mid 50s. Northeast winds 10 to 15 mph with gusts to around 30 mph.

Racine, WI

Late Afternoon
Rain Showers
55°13°
70%
Monday
Mostly Cloudy
62°/ 52° 17°/ 11°
0%
Tuesday
Partly Cloudy
62°/ 50° 17°/ 10°
0%
Wednesday
Partly Cloudy
62°/ 50° 17°/ 10°
0%
Thursday
Partly Cloudy
65°/ 50° 18°/ 10°
0%
Friday
Mostly Cloudy
65°/ 50° 18°/ 10°
0%
Saturday
Partly Cloudy
68°/ 52° 20°/ 11°
0%
Sunday
Partly Cloudy
70°21°
0%

Day: Light showers likely. Northeast winds 15 to 20 mph. Chance of showers 70 percent.

Night: Cloudy. Lows in the mid 50s. Northeast winds 10 to 20 mph.

Milwaukee, WI

Late Afternoon
Rain Showers
55°13°
70%
Monday
Mostly Cloudy
62°/ 52° 17°/ 11°
0%
Tuesday
Partly Cloudy
62°/ 52° 17°/ 11°
0%
Wednesday
Partly Cloudy
62°/ 52° 17°/ 11°
0%
Thursday
Partly Cloudy
62°/ 52° 17°/ 11°
0%
Friday
Mostly Cloudy
65°/ 52° 18°/ 11°
0%
Saturday
Partly Cloudy
65°/ 52° 18°/ 11°
0%
Sunday
Partly Cloudy
68°20°
0%

Day: Light showers likely. Northeast winds 15 to 20 mph with gusts to around 35 mph. Chance of showers 70 percent.

Night: Cloudy. Lows in the mid 50s. Northeast winds 10 to 20 mph.

Portage, WI

Late Afternoon
Mostly Cloudy
52°11°
0%
Monday
Mostly Cloudy
62°/ 45° 17°/
0%
Tuesday
Partly Cloudy
62°/ 42° 17°/
0%
Wednesday
Sunny
62°/ 45° 17°/
0%
Thursday
Partly Cloudy
65°/ 45° 18°/
0%
Friday
Mostly Cloudy
68°/ 48° 20°/
0%
Saturday
Mostly Cloudy
68°/ 48° 20°/
20%
Sunday
Rain Showers
70°21°
20%

Day: Mostly cloudy. Northeast winds 10 to 15 mph.

Night: Mostly cloudy. Lows in the lower 50s. Northeast winds 5 to 15 mph.

Mequon, WI

Late Afternoon
Partly Cloudy
55°13°
0%
Monday
Mostly Cloudy
62°/ 50° 17°/ 10°
0%
Tuesday
Partly Cloudy
62°/ 48° 17°/
0%
Wednesday
Sunny
62°/ 50° 17°/ 10°
0%
Thursday
Partly Cloudy
65°/ 50° 18°/ 10°
0%
Friday
Partly Cloudy
65°/ 52° 18°/ 11°
0%
Saturday
Partly Cloudy
68°/ 52° 20°/ 11°
0%
Sunday
Partly Cloudy
70°21°
0%

Day: Breezy. Partly sunny. Northeast winds 15 to 25 mph.

Night: Mostly cloudy. Lows in the mid 50s. Northeast winds 10 to 20 mph.

Kenosha, WI

Late Afternoon
Rain Showers
55°13°
90%
Monday
Cloudy
62°/ 52° 17°/ 11°
0%
Tuesday
Partly Cloudy
62°/ 50° 17°/ 10°
0%
Wednesday
Partly Cloudy
62°/ 50° 17°/ 10°
0%
Thursday
Partly Cloudy
65°/ 52° 18°/ 11°
0%
Friday
Mostly Cloudy
65°/ 50° 18°/ 10°
0%
Saturday
Partly Cloudy
68°/ 52° 20°/ 11°
0%
Sunday
Partly Cloudy
72°22°
0%

Day: Light showers. Northeast winds 10 to 20 mph. Chance of showers 90 percent.

Night: Cloudy. A 20 percent chance of light rain showers in the evening. Lows in the mid 50s. Northeast winds 10 to 15 mph with gusts to around 30 mph.

Crystal Lake, IL

Late Afternoon
Drizzle
55°13°
0%
Monday
Rain Showers
62°/ 52° 17°/ 11°
20%
Tuesday
Mostly Cloudy
62°/ 48° 17°/
0%
Wednesday
Cloudy
62°/ 48° 17°/
0%
Thursday
Mostly Cloudy
65°/ 50° 18°/ 10°
0%
Friday
Mostly Cloudy
68°/ 48° 20°/
0%
Saturday
Mostly Cloudy
70°/ 52° 21°/ 11°
0%
Sunday
Mostly Cloudy
72°22°
0%

Day: Cloudy. Widespread drizzle. Breezy. Temperatures in the lower 60s. Northeast winds 10 to 15 mph with gusts up to 30 mph.

Night: Cloudy. Patchy drizzle in the evening. Lows in the mid 50s. Northeast winds 10 to 15 mph with gusts up to 25 mph.

Belvidere, IL

Late Afternoon
Drizzle
55°13°
0%
Monday
Rain Showers
62°/ 50° 17°/ 10°
20%
Tuesday
Mostly Cloudy
62°/ 48° 17°/
0%
Wednesday
Cloudy
65°/ 48° 18°/
0%
Thursday
Mostly Cloudy
65°/ 48° 18°/
0%
Friday
Mostly Cloudy
68°/ 48° 20°/
0%
Saturday
Mostly Cloudy
70°/ 52° 21°/ 11°
0%
Sunday
Mostly Cloudy
72°22°
0%

Day: Cloudy. Widespread drizzle. Breezy. Temperatures in the lower 60s. Northeast winds 10 to 15 mph with gusts up to 30 mph.

Night: Cloudy. Lows in the mid 50s. Northeast winds 10 to 15 mph with gusts up to 25 mph.

Monroe, WI

Late Afternoon
Rain Showers
55°13°
50%
Monday
Mostly Cloudy
62°/ 48° 17°/
30%
Tuesday
Partly Cloudy
62°/ 45° 17°/
0%
Wednesday
Sunny
62°/ 48° 17°/
0%
Thursday
Partly Cloudy
65°/ 48° 18°/
0%
Friday
Mostly Cloudy
65°/ 48° 18°/
0%
Saturday
Rain Showers
68°/ 52° 20°/ 11°
20%
Sunday
Rain Showers
70°21°
20%

Day: Cloudy with a 50 percent chance of light showers. Northeast winds around 15 mph with gusts to around 30 mph.

Night: Cloudy. Lows in the mid 50s. Northeast winds 10 to 15 mph with gusts to around 30 mph.

Rockford, IL

Late Afternoon
Drizzle
55°13°
0%
Monday
Rain Showers
62°/ 50° 17°/ 10°
20%
Tuesday
Rain Showers
62°/ 45° 17°/
20%
Wednesday
Cloudy
65°/ 48° 18°/
0%
Thursday
Mostly Cloudy
65°/ 48° 18°/
0%
Friday
Mostly Cloudy
68°/ 48° 20°/
0%
Saturday
Mostly Cloudy
68°/ 52° 20°/ 11°
0%
Sunday
Mostly Cloudy
72°22°
0%

Day: Cloudy. Widespread drizzle. Temperatures in the lower 60s. Northeast winds 10 to 15 mph with gusts up to 25 mph.

Night: Cloudy. Lows in the mid 50s. Northeast winds 10 to 15 mph with gusts up to 25 mph.

Fond Du Lac, WI

Late Afternoon
Mostly Cloudy
52°11°
0%
Monday
Mostly Cloudy
62°/ 48° 17°/
0%
Tuesday
Partly Cloudy
62°/ 45° 17°/
0%
Wednesday
Sunny
62°/ 45° 17°/
0%
Thursday
Partly Cloudy
65°/ 48° 18°/
0%
Friday
Partly Cloudy
68°/ 48° 20°/
0%
Saturday
Partly Cloudy
68°/ 50° 20°/ 10°
0%
Sunday
Partly Cloudy
70°21°
0%

Day: Mostly cloudy. Northeast winds 15 to 20 mph.

Night: Mostly cloudy. Lows in the lower 50s. Northeast winds 5 to 20 mph.

Waukegan, IL

Late Afternoon
Drizzle
55°13°
20%
Monday
Rain Showers
62°/ 52° 17°/ 11°
20%
Tuesday
Mostly Cloudy
62°/ 52° 17°/ 11°
0%
Wednesday
Cloudy
62°/ 52° 17°/ 11°
0%
Thursday
Mostly Cloudy
65°/ 52° 18°/ 11°
0%
Friday
Mostly Cloudy
65°/ 52° 18°/ 11°
0%
Saturday
Mostly Cloudy
68°/ 52° 20°/ 11°
0%
Sunday
Mostly Cloudy
72°22°
0%

Day: Cloudy, drizzle, breezy. Temperatures in the lower 60s. Northeast winds 15 to 20 mph with gusts up to 30 mph.

Night: Cloudy. Areas of drizzle in the evening. A slight chance of showers after midnight. Breezy. Lows in the mid 50s. Northeast winds 15 to 20 mph, becoming east 10 to 15 mph after midnight. Gusts up to 30 mph. Chance of precipitation 20 percent.

Plymouth, WI

Late Afternoon
Partly Cloudy
52°11°
0%
Monday
Mostly Cloudy
62°/ 48° 17°/
0%
Tuesday
Partly Cloudy
62°/ 48° 17°/
0%
Wednesday
Sunny
62°/ 48° 17°/
0%
Thursday
Sunny
65°/ 48° 18°/
0%
Friday
Partly Cloudy
65°/ 50° 18°/ 10°
0%
Saturday
Partly Cloudy
68°/ 52° 20°/ 11°
0%
Sunday
Partly Cloudy
70°21°
0%

Day: Breezy. Partly sunny. Northeast winds 15 to 25 mph.

Night: Mostly cloudy. Lows in the lower 50s. Northeast winds 10 to 20 mph.

Berlin, WI

Late Afternoon
Mostly Cloudy
50°10°
0%
Monday
Mostly Cloudy
62°/ 45° 17°/
0%
Tuesday
Partly Cloudy
62°/ 42° 17°/
0%
Wednesday
Sunny
62°/ 45° 17°/
0%
Thursday
Partly Cloudy
65°/ 45° 18°/
0%
Friday
Mostly Cloudy
68°/ 45° 20°/
0%
Saturday
Partly Cloudy
68°/ 48° 20°/
0%
Sunday
Rain Showers
70°21°
20%

Day: Mostly cloudy. Northeast winds around 15 mph.

Night: Mostly cloudy. Lows around 50. Northeast winds 10 to 15 mph.

Names listed above may include county names.

Trending Headlines

Trending Entertainment Headlines

Sullivan Radar Loop

Use the map search tool if you want to place a location marker on the radar map...

Sullivan Quick Facts

National Two Day Weather Forecast


E-mail the Sullivan Weather Forecast

Voice your opinion or tell us about page issues...