S
M
T
W
T
F
S
26
70°
43°
27
77°
34°
28
72°
51°
29
64°
53°
30
53°
35°
1
65°
33°
2
51°
36°
3
57°
28°
4
73°
42°
5
77°
44°
6
68°
49°
7
62°
38°
8
67°
31°
9
70°
45°
10
75°
44°
11
63°
37°
12
72°
32°
13
70°
39°
14
52°
38°
15
66°
32°
16
77°
38°
17
86°
53°
18
90°
51°
19
87°
57°
20
85°
59°
21
66°
55°
22
61°
53°
23
74°
55°
24
79°
54°
25
76°
62°
26
79°
63°
27
72°
58°
28
74°
43°
29
78°
48°
30
72°
45°
31
76°
50°
1
71°
44°
2
68°
45°
3
71°
50°
4
73°
53°
5
72°
51°
6
73°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Mill Creek
Mill Creek's May 2026 forecast shows daily high temperatures ranging from 68° to 78°, with overnight lows between 43° and 58°. The average high for May is 73° with an average low of 49°. 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 Mill Creek. See also: June | July | August.
