S
M
T
W
T
F
S
26
59°
46°
27
66°
46°
28
57°
46°
29
61°
45°
30
57°
52°
1
59°
52°
2
55°
48°
3
59°
48°
4
59°
46°
5
59°
48°
6
57°
46°
7
57°
41°
8
61°
46°
9
63°
54°
10
61°
46°
11
55°
45°
12
57°
48°
13
N/A
14
53°
44°
15
55°
44°
16
56°
47°
17
56°
44°
18
56°
50°
19
60°
51°
20
60°
51°
21
63°
52°
22
66°
54°
23
63°
50°
24
64°
51°
25
63°
52°
26
57°
54°
27
57°
54°
28
58°
53°
29
57°
52°
30
58°
54°
31
58°
54°
1
60°
55°
2
63°
56°
3
64°
56°
4
61°
55°
5
60°
55°
6
60°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
May Weather in St Austell
St Austell's May 2026 forecast shows daily high temperatures ranging from 53° to 66°, with overnight lows between 44° and 56°. The average high for May is 60° with an average low of 52°. 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 Austell. See also: June | July | August.
