Hourly Weather Forecast - Rock Falls, IL

4 AM
27°F
0%
13mph
SSW
Mostly Cloudy
Humidity
81%
Feels like
16°F
Dew Point
22°F
5 AM
28°F
0%
13mph
SSW
Mostly Cloudy
Humidity
83%
Feels like
17°F
Dew Point
23°F
6 AM
28°F
0%
12mph
SW
Mostly Cloudy
Humidity
86%
Feels like
18°F
Dew Point
25°F
7 AM
29°F
0%
12mph
SW
Mostly Cloudy
Humidity
87%
Feels like
19°F
Dew Point
26°F
7:14 AM
8 AM
30°F
0%
12mph
SW
Mostly Cloudy
Humidity
88%
Feels like
21°F
Dew Point
27°F
9 AM
31°F
0%
12mph
WSW
Mostly Cloudy
Humidity
88%
Feels like
22°F
Dew Point
28°F
10 AM
32°F
0%
11mph
WSW
Mostly Cloudy
Humidity
88%
Feels like
24°F
Dew Point
29°F
11 AM
33°F
0%
10mph
WSW
Mostly Cloudy
Humidity
88%
Feels like
25°F
Dew Point
30°F
12 PM
34°F
0%
10mph
WSW
Cloudy
Humidity
88%
Feels like
26°F
Dew Point
31°F
1 PM
34°F
0%
9mph
SW
Mostly Cloudy
Humidity
90%
Feels like
27°F
Dew Point
31°F
2 PM
34°F
0%
8mph
SSW
Cloudy
Humidity
91%
Feels like
27°F
Dew Point
31°F
3 PM
34°F
10%
8mph
S
Cloudy
Humidity
93%
Feels like
27°F
Dew Point
32°F
4 PM
34°F
10%
9mph
S
Cloudy
Humidity
94%
Feels like
26°F
Dew Point
32°F
4:28 PM
5 PM
34°F
10%
10mph
S
Cloudy
Humidity
95%
Feels like
26°F
Dew Point
33°F
6 PM
35°F
30%
12mph
S
30% Chance of Light Rain
Humidity
95%
Feels like
26°F
Dew Point
33°F
7 PM
35°F
40%
13mph
S
40% Chance of Light Rain
Humidity
96%
Feels like
26°F
Dew Point
34°F
8 PM
36°F
80%
15mph
SSW
80% Chance of Light Rain
Humidity
95%
Feels like
27°F
Dew Point
35°F
9 PM
37°F
60%
17mph
SW
60% Chance of Light Rain
Humidity
95%
Feels like
27°F
Dew Point
35°F
10 PM
37°F
40%
18mph
SW
40% Chance of Light Rain
Humidity
94%
Feels like
27°F
Dew Point
35°F
11 PM
37°F
30%
19mph
WSW
30% Chance Rain Showers
Humidity
94%
Feels like
27°F
Dew Point
36°F

Snow and ice forecast through Thursday A.M.

Snow Barrels Across the Northern U.S.

Low pressure will produce a swath of snow from Minnesota to Maine into Thursday.

Rainfall Forecast for Northwest through Thursday

Heavy, Flooding Rain Impacts the Northwest

Today's Weather Outlook

Today's Weather Outlook

Weekly Drought Map for December 4, 2025

Active Week of Weather Leads to Mixed Drought Results

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

Cold Air Damming - Cause And Effects

People skating on a frozen pond on a clear day. (Image by Q K from Pixabay)

Safety Tips For Icy Surfaces

Today's National Outlook

Hurricane Tracker

Allergy Forecast

Snow & Ski Forecast

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Traffic Cameras

Weather Cameras

Outdoor Sports Guide