S
M
T
W
T
F
S
26
80°
50°
27
82°
59°
28
68°
55°
29
64°
48°
30
66°
39°
1
63°
42°
2
61°
40°
3
73°
39°
4
84°
57°
5
64°
44°
6
65°
42°
7
73°
35°
8
79°
46°
9
84°
53°
10
76°
54°
11
81°
41°
12
82°
48°
13
77°
47°
14
78°
41°
15
85°
68°
16
82°
67°
17
91°
73°
18
84°
71°
19
75°
56°
20
68°
48°
21
70°
49°
22
76°
53°
23
81°
60°
24
81°
60°
25
79°
61°
26
79°
64°
27
80°
62°
28
81°
57°
29
82°
60°
30
75°
57°
31
75°
57°
1
74°
54°
2
75°
57°
3
75°
60°
4
81°
62°
5
84°
64°
6
84°
64°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Tiff
Tiff's May 2026 forecast shows daily high temperatures ranging from 68° to 91°, with overnight lows between 48° and 73°. The average high for May is 79° with an average low of 60°. 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 Tiff. See also: June | July | August.