S
M
T
W
T
F
S
26
70°
38°
27
61°
44°
28
56°
45°
29
65°
41°
30
72°
42°
1
71°
46°
2
74°
48°
3
76°
48°
4
80°
48°
5
68°
48°
6
59°
47°
7
65°
47°
8
65°
46°
9
70°
47°
10
67°
43°
11
71°
47°
12
66°
49°
13
66°
48°
14
68°
50°
15
64°
48°
16
64°
48°
17
64°
49°
18
66°
49°
19
65°
50°
20
66°
48°
21
61°
48°
22
61°
45°
23
62°
45°
24
66°
50°
25
64°
48°
26
61°
44°
27
61°
44°
28
62°
51°
29
61°
53°
30
62°
49°
31
70°
50°
1
71°
53°
2
71°
50°
3
63°
46°
4
66°
48°
5
69°
47°
6
62°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Thornwood
Thornwood's May 2026 forecast shows daily high temperatures ranging from 61° to 71°, with overnight lows between 43° and 53°. The average high for May is 65° with an average low of 48°. 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 Thornwood. See also: June | July | August.
