Hourly Weather Forecast - Sullivan, WI

12 AM
34°F
0%
11mph
WSW
Cloudy
Humidity
92%
Feels like
25°F
Dew Point
31°F
1 AM
34°F
0%
10mph
W
Cloudy
Humidity
91%
Feels like
26°F
Dew Point
31°F
2 AM
34°F
0%
10mph
W
Mostly Cloudy
Humidity
90%
Feels like
26°F
Dew Point
31°F
3 AM
33°F
0%
10mph
WNW
Partly Cloudy
Humidity
90%
Feels like
25°F
Dew Point
31°F
4 AM
33°F
0%
10mph
WNW
Partly Cloudy
Humidity
89%
Feels like
24°F
Dew Point
30°F
5 AM
31°F
0%
10mph
WNW
Partly Cloudy
Humidity
88%
Feels like
23°F
Dew Point
28°F
6 AM
30°F
0%
9mph
WNW
Partly Cloudy
Humidity
88%
Feels like
22°F
Dew Point
27°F
7 AM
29°F
0%
8mph
WNW
Partly Cloudy
Humidity
88%
Feels like
21°F
Dew Point
26°F
7:20 AM
8 AM
28°F
0%
6mph
WNW
Partly Cloudy
Humidity
89%
Feels like
22°F
Dew Point
25°F
9 AM
28°F
0%
5mph
W
Partly Cloudy
Humidity
89%
Feels like
22°F
Dew Point
25°F
10 AM
29°F
0%
4mph
W
Partly Cloudy
Humidity
86%
Feels like
24°F
Dew Point
25°F
11 AM
30°F
0%
4mph
WSW
Mostly Sunny
Humidity
83%
Feels like
26°F
Dew Point
26°F
12 PM
31°F
0%
4mph
WSW
Sunny
Humidity
81%
Feels like
27°F
Dew Point
26°F
1 PM
32°F
0%
4mph
SW
Sunny
Humidity
80%
Feels like
28°F
Dew Point
26°F
2 PM
32°F
0%
6mph
SSW
Mostly Sunny
Humidity
80%
Feels like
27°F
Dew Point
27°F
3 PM
32°F
0%
6mph
S
Mostly Sunny
Humidity
81%
Feels like
26°F
Dew Point
27°F
4 PM
31°F
0%
7mph
S
Mostly Sunny
Humidity
83%
Feels like
24°F
Dew Point
27°F
4:20 PM
5 PM
30°F
0%
8mph
S
Mostly Clear
Humidity
85%
Feels like
23°F
Dew Point
26°F
6 PM
30°F
0%
9mph
SSE
Partly Cloudy
Humidity
86%
Feels like
21°F
Dew Point
26°F
7 PM
30°F
0%
10mph
SSE
Partly Cloudy
Humidity
87%
Feels like
21°F
Dew Point
27°F
8 PM
30°F
0%
11mph
S
Mostly Clear
Humidity
88%
Feels like
21°F
Dew Point
27°F
9 PM
31°F
0%
12mph
S
Mostly Clear
Humidity
89%
Feels like
22°F
Dew Point
28°F
10 PM
32°F
0%
13mph
S
Partly Cloudy
Humidity
90%
Feels like
23°F
Dew Point
29°F
11 PM
33°F
0%
14mph
S
Mostly Cloudy
Humidity
91%
Feels like
24°F
Dew Point
31°F

Rainfall Totals Through Wednesday A.M.

Heavy Rain Returns to Deluge Pacific Northwest

Another atmospheric river will hit the Pacific Northwest with heavy rain and high winds.

Monday's Weather Outlook

Today's Weather Outlook

How to Measure Snow via NWS

How To Measure Snow

Weekly Drought Map for December 11, 2025

Hit-or-Miss Precipitation Leads to Mixed Drought Results

A person standing in a snowy forest with their back to the camera. They are bundled up in a white hat and a brown jacket. (Image by StockSnap from Pixabay)

Common Cold Weather Illnesses

A strong cold-air-damming event from March 20, 2018.

Cold Air Damming - Cause And Effects

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