S
M
T
W
T
F
S
26
50°
27°
27
53°
26°
28
56°
36°
29
62°
36°
30
65°
31°
1
72°
31°
2
74°
37°
3
77°
39°
4
68°
41°
5
63°
38°
6
69°
31°
7
73°
45°
8
71°
40°
9
72°
37°
10
79°
38°
11
76°
46°
12
82°
37°
13
69°
46°
14
60°
44°
15
59°
41°
16
52°
40°
17
53°
37°
18
61°
26°
19
57°
32°
20
59°
37°
21
64°
38°
22
70°
42°
23
76°
45°
24
79°
46°
25
79°
48°
26
67°
48°
27
72°
43°
28
76°
47°
29
73°
44°
30
76°
45°
31
71°
44°
1
78°
46°
2
72°
44°
3
65°
40°
4
69°
44°
5
68°
46°
6
64°
40°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in St. Ignatius
St. Ignatius's May 2026 forecast shows daily high temperatures ranging from 59° to 79°, with overnight lows between 37° and 48°. The average high for May is 71° with an average low of 44°. 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 St. Ignatius. See also: June | July | August.
