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7 Days
14 Days
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Monthly
Precipitation
Temperature
Wind
Temperature Unit Selection
°Celsius
°Fahrenheit
Monthly Historical Averages
Sullivan Lake, BC
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May
Average Temperature
High
16°
Feels 16
Low
5°
Feels 2
Average Precipitation
14 Days
Rain amount
66.9mm
Snow amount
0.8cm
Content continues below
Daily Historical Averages
May 2026
S
M
T
W
T
F
S
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
15°
22
19°
23
18°
24
12°
25
10°
26
10°
27
13°
28
15°
29
15°
30
14°
31
14°
Forecast
Thursday, May 21, 2026
Day
15°
Feels 15
Wind
10 km/h SW
Gust
11 km/h
Humidity
27%
P.O.P
30%
Night
5°
Feels 5
Wind
6 km/h SE
Gust
9 km/h
Humidity
75%
P.O.P
30%
Historical Averages
May 21
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.