S
M
T
W
T
F
S
30
75°
56°
31
77°
57°
1
77°
51°
2
72°
51°
3
68°
52°
4
68°
51°
5
69°
50°
6
70°
57°
7
75°
60°
8
78°
54°
9
74°
50°
10
70°
50°
11
70°
57°
12
71°
49°
13
72°
49°
14
67°
47°
15
67°
49°
16
68°
56°
17
72°
46°
18
66°
47°
19
66°
46°
20
69°
44°
21
64°
48°
22
63°
54°
23
73°
54°
24
73°
52°
25
72°
53°
26
70°
53°
27
73°
52°
28
72°
51°
29
69°
52°
30
70°
53°
1
72°
41°
2
72°
40°
3
60°
41°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Lake Elmo
Lake Elmo's September 2026 forecast shows daily high temperatures ranging from 60° to 78°, with overnight lows between 40° and 60°. The average high for September is 70° with an average low of 51°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how September weather will actually feel in Lake Elmo. See also: October | November | December.
