Hourly Weather Forecast - Sullivan, WI

12 AM
11°F
0%
1mph
S
Partly Cloudy
Humidity
91%
Feels like
11°F
Dew Point
9°F
1 AM
11°F
0%
1mph
S
Partly Cloudy
Humidity
90%
Feels like
11°F
Dew Point
9°F
2 AM
11°F
0%
2mph
S
Partly Cloudy
Humidity
90%
Feels like
11°F
Dew Point
8°F
3 AM
11°F
0%
2mph
S
Partly Cloudy
Humidity
89%
Feels like
11°F
Dew Point
9°F
4 AM
12°F
0%
3mph
S
Partly Cloudy
Humidity
88%
Feels like
12°F
Dew Point
9°F
5 AM
12°F
0%
4mph
S
Partly Cloudy
Humidity
87%
Feels like
6°F
Dew Point
9°F
6 AM
13°F
0%
5mph
S
Partly Cloudy
Humidity
86%
Feels like
6°F
Dew Point
10°F
7 AM
15°F
0%
6mph
S
Partly Cloudy
Humidity
88%
Feels like
7°F
Dew Point
12°F
7:19 AM
8 AM
18°F
0%
7mph
SSW
Partly Cloudy
Humidity
89%
Feels like
8°F
Dew Point
15°F
9 AM
20°F
0%
8mph
SSW
Mostly Cloudy
Humidity
89%
Feels like
11°F
Dew Point
18°F
10 AM
24°F
0%
9mph
SSW
Partly Cloudy
Humidity
87%
Feels like
14°F
Dew Point
20°F
11 AM
27°F
0%
10mph
SSW
Partly Cloudy
Humidity
83%
Feels like
17°F
Dew Point
22°F
12 PM
30°F
0%
11mph
SW
Partly Cloudy
Humidity
80%
Feels like
20°F
Dew Point
24°F
1 PM
31°F
0%
11mph
SW
Mostly Sunny
Humidity
80%
Feels like
22°F
Dew Point
26°F
2 PM
32°F
0%
11mph
SW
Partly Cloudy
Humidity
81%
Feels like
23°F
Dew Point
27°F
3 PM
33°F
0%
13mph
SW
Mostly Cloudy
Humidity
82%
Feels like
24°F
Dew Point
28°F
4 PM
33°F
0%
13mph
SW
Mostly Cloudy
Humidity
84%
Feels like
24°F
Dew Point
29°F
4:20 PM
5 PM
33°F
0%
13mph
SW
Cloudy
Humidity
86%
Feels like
24°F
Dew Point
29°F
6 PM
33°F
0%
13mph
SW
Cloudy
Humidity
88%
Feels like
23°F
Dew Point
29°F
7 PM
33°F
0%
14mph
SW
Cloudy
Humidity
90%
Feels like
23°F
Dew Point
30°F
8 PM
33°F
0%
14mph
SW
Mostly Cloudy
Humidity
91%
Feels like
23°F
Dew Point
31°F
9 PM
33°F
0%
13mph
WSW
Partly Cloudy
Humidity
92%
Feels like
23°F
Dew Point
31°F
10 PM
33°F
0%
13mph
WSW
Partly Cloudy
Humidity
92%
Feels like
24°F
Dew Point
31°F
11 PM
34°F
0%
12mph
WSW
Mostly Cloudy
Humidity
92%
Feels like
25°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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