S
M
T
W
T
F
S
26
64°
54°
27
65°
52°
28
71°
49°
29
72°
50°
30
71°
54°
1
74°
57°
2
73°
58°
3
68°
55°
4
67°
52°
5
69°
50°
6
73°
56°
7
86°
56°
8
86°
58°
9
84°
57°
10
85°
56°
11
88°
56°
12
82°
57°
13
83°
58°
14
79°
57°
15
78°
55°
16
79°
57°
17
81°
59°
18
82°
59°
19
82°
58°
20
81°
59°
21
82°
59°
22
82°
60°
23
83°
60°
24
83°
59°
25
82°
60°
26
81°
60°
27
81°
59°
28
75°
57°
29
74°
56°
30
74°
57°
31
75°
59°
1
76°
60°
2
79°
59°
3
78°
59°
4
77°
58°
5
76°
57°
6
76°
55°
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 88°, with overnight lows between 50° and 60°. The average high for May is 79° with an average low of 57°. 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.
