S
M
T
W
T
F
S
26
87°
68°
27
88°
74°
28
92°
76°
29
83°
64°
30
77°
61°
1
66°
53°
2
75°
50°
3
79°
50°
4
81°
59°
5
86°
67°
6
85°
63°
7
70°
60°
8
78°
62°
9
89°
69°
10
92°
64°
11
80°
60°
12
84°
64°
13
87°
66°
14
86°
67°
15
85°
72°
16
87°
72°
17
86°
71°
18
82°
70°
19
85°
73°
20
86°
71°
21
85°
72°
22
86°
67°
23
81°
70°
24
82°
69°
25
82°
70°
26
83°
71°
27
83°
71°
28
84°
70°
29
84°
71°
30
85°
72°
31
86°
72°
1
85°
71°
2
84°
72°
3
85°
72°
4
84°
73°
5
85°
72°
6
87°
72°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Smithson Valley
Smithson Valley's May 2026 forecast shows daily high temperatures ranging from 80° to 92°, with overnight lows between 60° and 73°. The average high for May is 85° with an average low of 70°. 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 Smithson Valley. See also: June | July | August.
