S
M
T
W
T
F
S
26
63°
46°
27
55°
45°
28
57°
41°
29
54°
37°
30
54°
34°
1
53°
32°
2
65°
44°
3
67°
52°
4
61°
33°
5
52°
33°
6
51°
32°
7
58°
43°
8
66°
40°
9
63°
42°
10
65°
46°
11
66°
46°
12
66°
45°
13
67°
47°
14
70°
46°
15
63°
43°
16
64°
46°
17
63°
50°
18
67°
50°
19
74°
52°
20
75°
53°
21
69°
47°
22
63°
44°
23
64°
43°
24
64°
44°
25
66°
48°
26
65°
48°
27
67°
49°
28
66°
46°
29
68°
51°
30
72°
47°
31
68°
50°
1
68°
52°
2
70°
51°
3
69°
52°
4
70°
51°
5
70°
49°
6
71°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Forest Lake
Forest Lake's May 2026 forecast shows daily high temperatures ranging from 51° to 75°, with overnight lows between 32° and 53°. The average high for May is 66° with an average low of 46°. 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 Forest Lake. See also: June | July | August.