S
M
T
W
T
F
S
26
83°
65°
27
87°
71°
28
86°
71°
29
87°
67°
30
76°
64°
1
65°
53°
2
73°
52°
3
77°
46°
4
78°
50°
5
83°
56°
6
85°
72°
7
78°
64°
8
69°
64°
9
71°
65°
10
83°
65°
11
80°
66°
12
85°
66°
13
85°
64°
14
88°
60°
15
87°
62°
16
84°
67°
17
86°
65°
18
87°
72°
19
88°
75°
20
84°
72°
21
81°
71°
22
89°
70°
23
78°
69°
24
80°
69°
25
78°
69°
26
89°
72°
27
84°
71°
28
80°
71°
29
85°
71°
30
89°
70°
31
84°
68°
1
82°
69°
2
84°
68°
3
83°
67°
4
82°
66°
5
84°
68°
6
85°
67°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Folsom
Folsom's May 2026 forecast shows daily high temperatures ranging from 80° to 89°, with overnight lows between 66° and 72°. The average high for May is 84° with an average low of 69°. 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 Folsom. See also: June | July | August.
