Monthly Historical AveragesThayer, IL
Average Temperature
High
3°
Feels -1
Low
-6°
Feels -12
Average Precipitation
6 Days
21.5mm
16.6cm
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Daily Historical Averages
S
M
T
W
T
F
S
ForecastSaturday, February 21, 2026
Day
3°Feels -1
Wind
22 km/h NW
Gust
33 km/h
Humidity
40%
P.O.P
40%
Snow
<1 cm
Night
-7°Feels -15
Wind
27 km/h NW
Gust
40 km/h
Humidity
65%
P.O.P
30%
Historical AveragesFeb 21
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity