Hourly Weather Forecast - Sullivan, WI

12 AM
23°F
10%
10mph
S
Mostly Cloudy
Humidity
73%
Feels like
13°F
Dew Point
16°F
1 AM
24°F
10%
11mph
S
Partly Cloudy
Humidity
73%
Feels like
14°F
Dew Point
17°F
2 AM
25°F
10%
11mph
S
Partly Cloudy
Humidity
73%
Feels like
15°F
Dew Point
18°F
3 AM
26°F
10%
11mph
S
Partly Cloudy
Humidity
73%
Feels like
15°F
Dew Point
18°F
4 AM
26°F
10%
11mph
S
Partly Cloudy
Humidity
74%
Feels like
16°F
Dew Point
19°F
5 AM
26°F
10%
11mph
SSW
Mostly Cloudy
Humidity
75%
Feels like
17°F
Dew Point
20°F
6 AM
27°F
10%
10mph
SSW
Cloudy
Humidity
76%
Feels like
17°F
Dew Point
20°F
7 AM
28°F
10%
10mph
SSW
Cloudy
Humidity
77%
Feels like
19°F
Dew Point
22°F
7:21 AM
8 AM
29°F
10%
10mph
SSW
Cloudy
Humidity
78%
Feels like
20°F
Dew Point
23°F
9 AM
30°F
10%
9mph
SW
Cloudy
Humidity
78%
Feels like
22°F
Dew Point
24°F
10 AM
31°F
10%
9mph
SW
Cloudy
Humidity
77%
Feels like
24°F
Dew Point
25°F
11 AM
33°F
10%
9mph
WSW
Cloudy
Humidity
75%
Feels like
25°F
Dew Point
26°F
12 PM
34°F
10%
9mph
WSW
Cloudy
Humidity
74%
Feels like
26°F
Dew Point
26°F
1 PM
34°F
10%
9mph
W
Cloudy
Humidity
73%
Feels like
27°F
Dew Point
26°F
2 PM
34°F
10%
9mph
W
Mostly Cloudy
Humidity
72%
Feels like
27°F
Dew Point
26°F
3 PM
34°F
10%
9mph
W
Mostly Cloudy
Humidity
72%
Feels like
26°F
Dew Point
26°F
4 PM
33°F
10%
9mph
W
Mostly Cloudy
Humidity
74%
Feels like
25°F
Dew Point
25°F
4:22 PM
5 PM
31°F
10%
9mph
W
Partly Cloudy
Humidity
77%
Feels like
23°F
Dew Point
25°F
6 PM
30°F
10%
9mph
W
Partly Cloudy
Humidity
79%
Feels like
21°F
Dew Point
24°F
7 PM
29°F
10%
9mph
W
Mostly Cloudy
Humidity
79%
Feels like
20°F
Dew Point
23°F
8 PM
28°F
10%
9mph
W
Mostly Cloudy
Humidity
78%
Feels like
19°F
Dew Point
22°F
9 PM
27°F
10%
9mph
W
Cloudy
Humidity
77%
Feels like
18°F
Dew Point
20°F
10 PM
26°F
10%
9mph
WNW
Cloudy
Humidity
76%
Feels like
16°F
Dew Point
19°F
11 PM
25°F
10%
9mph
WNW
Cloudy
Humidity
75%
Feels like
16°F
Dew Point
18°F

Rainfall and Snowfall Totals Through Wednesday

Heavy Rain, Snow, and Winds Wallop Northwest

The atmospheric river this week continues to hit the Pacific Northwest with heavy rain, snow, and high winds.

Tuesday'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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