S
M
T
W
T
F
S
26
71°
33°
27
75°
35°
28
71°
37°
29
69°
38°
30
53°
45°
1
55°
40°
2
53°
39°
3
53°
36°
4
62°
45°
5
70°
53°
6
58°
46°
7
56°
38°
8
50°
34°
9
52°
39°
10
56°
38°
11
59°
37°
12
59°
38°
13
55°
41°
14
56°
38°
15
60°
40°
16
60°
39°
17
59°
37°
18
60°
45°
19
61°
45°
20
63°
44°
21
67°
46°
22
67°
42°
23
60°
41°
24
62°
45°
25
63°
41°
26
63°
42°
27
62°
43°
28
61°
45°
29
64°
48°
30
68°
47°
31
65°
44°
1
64°
41°
2
63°
42°
3
64°
42°
4
64°
43°
5
65°
43°
6
65°
44°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Cornish Flat
Cornish Flat's May 2026 forecast shows daily high temperatures ranging from 50° to 70°, with overnight lows between 34° and 53°. The average high for May is 61° with an average low of 42°. 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 Cornish Flat. See also: June | July | August.
