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Hourly
7 Days
14 Days
Monthly
°C
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°Celsius
°Fahrenheit
Monthly Historical Averages
Grafton, WI
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January
Average Temperature
High
-3°
Feels -7
Low
-10°
Feels -17
Average Precipitation
3 Days
Rain amount
0mm
Snow amount
9.7cm
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Daily Historical Averages
January 2026
S
M
T
W
T
F
S
1
2
3
4
5
6
7
8
9
10
11
12
13
7°
14
-6°
15
-6°
16
1°
17
-6°
18
-10°
19
-16°
20
-13°
21
-8°
22
-8°
23
-10°
24
-12°
25
-13°
26
-10°
27
-9°
28
29
30
31
Forecast
Tuesday, January 13, 2026
Day
7°
Feels 2
Wind
36 km/h W
Gust
54 km/h
Humidity
65%
P.O.P
40%
Rain
<1 mm
Night
-5°
Feels -15
Wind
36 km/h W
Gust
54 km/h
Humidity
87%
P.O.P
40%
Snow
<1 cm
Historical Averages
Jan 13
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.