Monthly Historical AveragesGrimsby, ON
Average Temperature
High
19°
Feels 19
Low
8°
Feels 7
Average Precipitation
13 Days
87.7mm
0cm
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Daily Historical Averages
S
M
T
W
T
F
S
ForecastSunday, May 3, 2026
Day
14°Feels 12
Wind
31 km/h SW
Gust
48 km/h
Humidity
46%
P.O.P
40%
Rain
~1 mm
Night
9°Feels 5
Wind
34 km/h SW
Gust
51 km/h
Humidity
76%
P.O.P
40%
Rain
~1 mm
Historical AveragesMay 3
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity