S
M
T
W
T
F
S
26
64°
54°
27
65°
52°
28
71°
49°
29
72°
50°
30
71°
54°
1
76°
57°
2
76°
57°
3
68°
56°
4
67°
52°
5
69°
55°
6
77°
57°
7
81°
58°
8
80°
58°
9
77°
57°
10
76°
57°
11
81°
56°
12
82°
57°
13
83°
58°
14
78°
55°
15
72°
51°
16
73°
52°
17
73°
52°
18
74°
53°
19
74°
52°
20
75°
53°
21
81°
57°
22
81°
59°
23
80°
58°
24
80°
57°
25
81°
58°
26
81°
58°
27
80°
56°
28
79°
55°
29
79°
53°
30
74°
54°
31
74°
53°
1
75°
53°
2
77°
55°
3
79°
57°
4
81°
57°
5
79°
58°
6
78°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Foothill Ranch
Foothill Ranch's May 2026 forecast shows daily high temperatures ranging from 67° to 83°, with overnight lows between 51° and 59°. The average high for May is 77° with an average low of 56°. 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 Foothill Ranch. See also: June | July | August.
