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Monthly
Precipitation
Temperature
Wind
Temperature Unit Selection
°Celsius
°Fahrenheit
Monthly Historical Averages
Grundy Lake Provincial Park, ON
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May
Average Temperature
High
18°
Feels 18
Low
7°
Feels 4
Average Precipitation
10 Days
Rain amount
77.3mm
Snow amount
0.7cm
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Daily Historical Averages
May 2026
S
M
T
W
T
F
S
1
2
3
4
5
6
9°
7
7°
8
8°
9
11°
10
12°
11
11°
12
9°
13
10°
14
13°
15
13°
16
13°
17
13°
18
14°
19
15°
20
14°
21
22
23
24
25
26
27
28
29
30
31
Forecast
Wednesday, May 6, 2026
Day
9°
Feels 6
Wind
21 km/h W
Gust
32 km/h
Humidity
40%
P.O.P
20%
Night
0°
Feels -4
Wind
19 km/h W
Gust
29 km/h
Humidity
75%
P.O.P
20%
Historical Averages
May 6
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.