S
M
T
W
T
F
S
30
81°
59°
31
80°
58°
1
81°
52°
2
79°
51°
3
80°
51°
4
76°
55°
5
80°
55°
6
80°
57°
7
79°
49°
8
71°
47°
9
69°
52°
10
72°
56°
11
76°
48°
12
75°
56°
13
77°
54°
14
75°
55°
15
75°
56°
16
66°
49°
17
68°
53°
18
Hist. Avg.
72°
48°
19
Hist. Avg.
71°
48°
20
Hist. Avg.
71°
48°
21
Hist. Avg.
70°
47°
22
Hist. Avg.
70°
47°
23
Hist. Avg.
69°
46°
24
Hist. Avg.
69°
46°
25
Hist. Avg.
68°
45°
26
Hist. Avg.
68°
45°
27
Hist. Avg.
68°
44°
28
Hist. Avg.
67°
44°
29
Hist. Avg.
67°
44°
30
Hist. Avg.
66°
43°
1
Hist. Avg.
66°
43°
2
Hist. Avg.
65°
42°
3
Hist. Avg.
65°
42°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Jim Falls
Jim Falls's September 2026 forecast shows daily high temperatures ranging from 66° to 81°, with overnight lows between 47° and 59°. 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 Jim Falls. See also: October | November | December.
