S
M
T
W
T
F
S
30
81°
58°
31
81°
59°
1
80°
59°
2
89°
57°
3
85°
49°
4
80°
48°
5
77°
50°
6
77°
52°
7
79°
52°
8
85°
54°
9
85°
55°
10
87°
54°
11
85°
50°
12
81°
49°
13
82°
50°
14
85°
53°
15
86°
55°
16
86°
56°
17
85°
53°
18
85°
48°
19
76°
44°
20
Hist. Avg.
76°
49°
21
Hist. Avg.
75°
49°
22
Hist. Avg.
75°
48°
23
Hist. Avg.
74°
48°
24
Hist. Avg.
74°
47°
25
Hist. Avg.
73°
47°
26
Hist. Avg.
73°
46°
27
Hist. Avg.
72°
46°
28
Hist. Avg.
72°
45°
29
Hist. Avg.
71°
45°
30
Hist. Avg.
70°
44°
1
Hist. Avg.
70°
44°
2
Hist. Avg.
69°
43°
3
Hist. Avg.
69°
43°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Lyman
Lyman's September 2026 forecast shows daily high temperatures ranging from 76° to 89°, with overnight lows between 44° and 59°. The average high for September is 83° 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 Lyman. See also: October | November | December.
