S
M
T
W
T
F
S
30
73°
52°
31
73°
51°
1
74°
49°
2
73°
54°
3
76°
49°
4
76°
53°
5
73°
53°
6
72°
50°
7
75°
48°
8
77°
54°
9
75°
47°
10
75°
48°
11
74°
54°
12
74°
51°
13
71°
45°
14
70°
55°
15
73°
56°
16
78°
49°
17
76°
45°
18
68°
43°
19
65°
43°
20
64°
45°
21
66°
43°
22
70°
47°
23
68°
43°
24
65°
42°
25
66°
41°
26
65°
42°
27
64°
42°
28
64°
41°
29
62°
40°
30
62°
38°
1
Hist. Avg.
66°
41°
2
Hist. Avg.
65°
41°
3
Hist. Avg.
65°
40°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Elk River
Elk River's September 2026 forecast shows daily high temperatures ranging from 62° to 78°, with overnight lows between 38° and 56°. The average high for September is 71° 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 September weather will actually feel in Elk River. See also: October | November | December.
