Monthly Historical AveragesForreston, IL
Average Temperature
High
26°
Feels 28
Low
15°
Feels 15
Average Precipitation
13 Days
139.4mm
0cm
Content continues below
Daily Historical Averages
S
M
T
W
T
F
S
ForecastTuesday, June 2, 2026
Day
27°Feels 27
Wind
20 km/h E
Gust
30 km/h
Humidity
28%
P.O.P
10%
Night
11°Feels 10
Wind
18 km/h E
Gust
26 km/h
Humidity
71%
P.O.P
20%
Historical AveragesJun 2
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity