Hourly Weather Forecast - Watertown, IL

12 AM
29°F
0%
5mph
SE
Partly Cloudy
Humidity
72%
Feels like
24°F
Dew Point
21°F
1 AM
29°F
0%
5mph
SE
Mostly Clear
Humidity
70%
Feels like
24°F
Dew Point
21°F
2 AM
29°F
0%
6mph
SE
Clear
Humidity
69%
Feels like
24°F
Dew Point
21°F
3 AM
30°F
0%
6mph
SE
Clear
Humidity
67%
Feels like
24°F
Dew Point
20°F
4 AM
30°F
0%
6mph
SE
Mostly Clear
Humidity
67%
Feels like
24°F
Dew Point
20°F
5 AM
31°F
0%
6mph
SE
Mostly Clear
Humidity
64%
Feels like
25°F
Dew Point
20°F
6 AM
32°F
0%
6mph
SE
Partly Cloudy
Humidity
62%
Feels like
27°F
Dew Point
21°F
7 AM
35°F
0%
6mph
SE
Mostly Clear
Humidity
59%
Feels like
29°F
Dew Point
22°F
7:07 AM
8 AM
37°F
0%
7mph
SE
Mostly Sunny
Humidity
58%
Feels like
31°F
Dew Point
23°F
9 AM
39°F
0%
7mph
SSE
Sunny
Humidity
56%
Feels like
34°F
Dew Point
25°F
10 AM
42°F
0%
8mph
SSE
Sunny
Humidity
55%
Feels like
37°F
Dew Point
27°F
11 AM
45°F
0%
9mph
S
Mostly Sunny
Humidity
53%
Feels like
40°F
Dew Point
29°F
12 PM
47°F
0%
9mph
S
Partly Cloudy
Humidity
53%
Feels like
43°F
Dew Point
31°F
1 PM
48°F
0%
10mph
S
Partly Cloudy
Humidity
57%
Feels like
44°F
Dew Point
34°F
2 PM
48°F
0%
9mph
S
Partly Cloudy
Humidity
62%
Feels like
44°F
Dew Point
36°F
3 PM
48°F
10%
9mph
S
Mostly Cloudy
Humidity
68%
Feels like
44°F
Dew Point
38°F
4 PM
48°F
10%
10mph
S
Cloudy
Humidity
73%
Feels like
43°F
Dew Point
39°F
4:34 PM
5 PM
47°F
20%
9mph
S
Cloudy
Humidity
77%
Feels like
43°F
Dew Point
41°F
6 PM
48°F
30%
9mph
S
30% Chance of Light Rain
Humidity
82%
Feels like
43°F
Dew Point
42°F
7 PM
48°F
30%
9mph
S
30% Chance of Light Rain
Humidity
85%
Feels like
44°F
Dew Point
44°F
8 PM
48°F
30%
9mph
S
30% Chance of Light Rain
Humidity
87%
Feels like
44°F
Dew Point
44°F
9 PM
49°F
40%
9mph
SSW
40% Chance of Light Rain
Humidity
89%
Feels like
45°F
Dew Point
46°F
10 PM
49°F
40%
9mph
SSW
40% Chance of Light Rain
Humidity
91%
Feels like
45°F
Dew Point
47°F
11 PM
49°F
40%
9mph
SSW
40% Chance of Light Rain
Humidity
92%
Feels like
46°F
Dew Point
47°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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