S
M
T
W
T
F
S
26
40°
25°
27
51°
25°
28
61°
30°
29
70°
36°
30
69°
43°
1
64°
41°
2
69°
40°
3
65°
45°
4
64°
44°
5
68°
42°
6
71°
40°
7
72°
40°
8
62°
39°
9
68°
39°
10
66°
43°
11
65°
42°
12
67°
41°
13
70°
46°
14
53°
40°
15
48°
37°
16
53°
34°
17
58°
39°
18
60°
41°
19
63°
41°
20
66°
45°
21
65°
40°
22
59°
42°
23
61°
41°
24
58°
39°
25
58°
41°
26
64°
46°
27
57°
38°
28
58°
39°
29
59°
39°
30
58°
40°
31
60°
39°
1
61°
43°
2
60°
40°
3
60°
45°
4
59°
45°
5
59°
42°
6
61°
41°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Fort St John
Fort St John's May 2026 forecast shows daily high temperatures ranging from 48° to 70°, with overnight lows between 34° and 46°. The average high for May is 60° with an average low of 41°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in Fort St John. See also: June | July | August.
