Hourly Weather Forecast - Sullivan, WI

12 AM
41°F
10%
7mph
WNW
Cloudy
Humidity
93%
Feels like
37°F
Dew Point
39°F
1 AM
41°F
10%
7mph
WNW
Cloudy
Humidity
93%
Feels like
36°F
Dew Point
39°F
2 AM
40°F
10%
7mph
WNW
Cloudy
Humidity
93%
Feels like
35°F
Dew Point
38°F
3 AM
39°F
10%
7mph
WNW
Cloudy
Humidity
93%
Feels like
34°F
Dew Point
37°F
4 AM
38°F
10%
7mph
WNW
Cloudy
Humidity
93%
Feels like
33°F
Dew Point
36°F
5 AM
37°F
10%
7mph
NW
Cloudy
Humidity
93%
Feels like
31°F
Dew Point
35°F
6 AM
36°F
10%
8mph
NW
Cloudy
Humidity
92%
Feels like
30°F
Dew Point
34°F
7 AM
36°F
10%
7mph
NW
Cloudy
Humidity
92%
Feels like
30°F
Dew Point
33°F
7:24 AM
8 AM
36°F
10%
7mph
NW
Cloudy
Humidity
91%
Feels like
30°F
Dew Point
33°F
9 AM
36°F
10%
7mph
NNW
Cloudy
Humidity
90%
Feels like
30°F
Dew Point
33°F
10 AM
37°F
10%
7mph
NNW
Cloudy
Humidity
87%
Feels like
31°F
Dew Point
33°F
11 AM
37°F
10%
8mph
NNW
Cloudy
Humidity
84%
Feels like
31°F
Dew Point
33°F
12 PM
38°F
10%
8mph
N
Cloudy
Humidity
80%
Feels like
32°F
Dew Point
32°F
1 PM
38°F
10%
8mph
N
Cloudy
Humidity
78%
Feels like
33°F
Dew Point
32°F
2 PM
38°F
10%
7mph
N
Cloudy
Humidity
76%
Feels like
33°F
Dew Point
31°F

Rain And Snow Totals Through Monday

Atmospheric River Takes Aim For Northern California

The plume of abundant moisture impacting the Northwest the last several days will focus more on Northern California later today into Monday bringing heavy rainfall and mountain snow.

NOAA, NCDC

White Christmas? What Are The Odds

Sunday's Weather Outlook

Sunday's Weather Outlook

Cold weather

During Extreme Cold: Watch for Frostbite!

Flu Update Valid For Week Ending December 13, 2025

Weekly Flu Update: Flu Spreading Hard Across U.S.

Watch vs. Warning

Flash Flood Watch and Warning Defined

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