S
M
T
W
T
F
S
26
59°
39°
27
63°
41°
28
52°
39°
29
55°
34°
30
59°
34°
1
61°
34°
2
61°
46°
3
48°
45°
4
59°
41°
5
52°
39°
6
54°
37°
7
57°
43°
8
59°
45°
9
52°
37°
10
57°
34°
11
54°
37°
12
57°
45°
13
52°
39°
14
52°
39°
15
52°
34°
16
55°
32°
17
55°
41°
18
55°
43°
19
59°
50°
20
61°
48°
21
65°
52°
22
67°
53°
23
69°
50°
24
71°
51°
25
72°
53°
26
70°
50°
27
69°
51°
28
66°
48°
29
65°
49°
30
63°
49°
31
64°
48°
1
57°
44°
2
59°
44°
3
60°
49°
4
58°
49°
5
59°
48°
6
60°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Forth
Forth's May 2026 forecast shows daily high temperatures ranging from 57° to 72°, with overnight lows between 44° and 53°. The average high for May is 64° with an average low of 49°. 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 Forth. See also: June | July | August.
