S
M
T
W
T
F
S
30
86°
56°
31
78°
58°
1
78°
62°
2
79°
56°
3
81°
55°
4
83°
62°
5
85°
60°
6
86°
53°
7
76°
53°
8
76°
52°
9
77°
54°
10
82°
56°
11
82°
54°
12
75°
53°
13
74°
51°
14
75°
58°
15
80°
57°
16
82°
50°
17
77°
49°
18
72°
48°
19
72°
49°
20
73°
53°
21
70°
54°
22
71°
48°
23
70°
52°
24
70°
48°
25
72°
55°
26
76°
55°
27
77°
46°
28
76°
47°
29
70°
53°
30
70°
52°
1
68°
53°
2
69°
50°
3
68°
44°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Lost Creek
Lost Creek's September 2026 forecast shows daily high temperatures ranging from 68° to 86°, with overnight lows between 44° and 62°. The average high for September is 76° with an average low of 53°. 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 Lost Creek. See also: October | November | December.
