S
M
T
W
T
F
S
30
77°
48°
31
80°
49°
1
82°
51°
2
83°
54°
3
85°
54°
4
88°
56°
5
87°
48°
6
81°
50°
7
82°
53°
8
84°
48°
9
72°
48°
10
73°
52°
11
74°
53°
12
76°
52°
13
77°
52°
14
79°
42°
15
70°
39°
16
Hist. Avg.
76°
44°
17
Hist. Avg.
76°
44°
18
Hist. Avg.
75°
44°
19
Hist. Avg.
75°
44°
20
Hist. Avg.
74°
43°
21
Hist. Avg.
74°
43°
22
Hist. Avg.
73°
43°
23
Hist. Avg.
73°
42°
24
Hist. Avg.
72°
42°
25
Hist. Avg.
72°
42°
26
Hist. Avg.
72°
42°
27
Hist. Avg.
71°
41°
28
Hist. Avg.
71°
41°
29
Hist. Avg.
70°
41°
30
Hist. Avg.
70°
40°
1
Hist. Avg.
69°
40°
2
Hist. Avg.
69°
40°
3
Hist. Avg.
68°
40°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Snake River
Snake River's September 2026 forecast shows daily high temperatures ranging from 70° to 88°, with overnight lows between 39° and 56°. The average high for September is 79° with an average low of 50°. 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 Snake River. See also: October | November | December.
