S
M
T
W
T
F
S
26
60°
52°
27
64°
47°
28
61°
45°
29
59°
43°
30
56°
40°
1
52°
40°
2
55°
41°
3
60°
45°
4
59°
46°
5
64°
44°
6
60°
44°
7
58°
42°
8
58°
41°
9
59°
40°
10
59°
44°
11
62°
51°
12
68°
51°
13
67°
48°
14
61°
47°
15
60°
44°
16
60°
43°
17
61°
45°
18
61°
44°
19
62°
44°
20
62°
43°
21
63°
44°
22
66°
54°
23
68°
47°
24
68°
45°
25
63°
45°
26
64°
46°
27
65°
48°
28
66°
47°
29
67°
51°
30
67°
52°
31
68°
53°
1
69°
53°
2
72°
54°
3
76°
57°
4
78°
57°
5
82°
58°
6
74°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Northbrook
Northbrook's May 2026 forecast shows daily high temperatures ranging from 52° to 82°, with overnight lows between 40° and 59°. The average high for May is 64° with an average low of 47°. 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 Northbrook. See also: June | July | August.
