S
M
T
W
T
F
S
26
55°
45°
27
56°
43°
28
68°
40°
29
72°
46°
30
78°
52°
1
81°
57°
2
81°
58°
3
70°
50°
4
56°
46°
5
58°
46°
6
77°
46°
7
86°
57°
8
87°
60°
9
88°
60°
10
94°
63°
11
90°
63°
12
91°
58°
13
76°
56°
14
82°
54°
15
82°
56°
16
74°
52°
17
69°
51°
18
68°
49°
19
73°
46°
20
81°
54°
21
84°
60°
22
83°
59°
23
82°
59°
24
90°
53°
25
85°
51°
26
78°
48°
27
68°
47°
28
71°
47°
29
81°
55°
30
85°
58°
31
91°
58°
1
93°
58°
2
92°
61°
3
91°
58°
4
92°
59°
5
89°
56°
6
90°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Spring Valley Lake
Spring Valley Lake's May 2026 forecast shows daily high temperatures ranging from 68° to 93°, with overnight lows between 47° and 61°. The average high for May is 85° with an average low of 55°. 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 Spring Valley Lake. See also: June | July | August.
