Monthly Historical AveragesRock Falls, IL
Average Temperature
High
23°
Feels 23
Low
11°
Feels 9
Average Precipitation
13 Days
113.3mm
0cm
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Daily Historical Averages
S
M
T
W
T
F
S
ForecastWednesday, May 27, 2026
Day
31°Feels 31
Wind
9 km/h N
Gust
14 km/h
Humidity
33%
P.O.P
20%
Night
16°Feels 15
Wind
20 km/h N
Gust
30 km/h
Humidity
68%
P.O.P
10%
Historical AveragesMay 27
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity