S
M
T
W
T
F
S
30
88°
68°
31
89°
68°
1
88°
67°
2
89°
67°
3
86°
66°
4
83°
62°
5
83°
62°
6
85°
62°
7
87°
65°
8
88°
66°
9
88°
66°
10
87°
65°
11
88°
66°
12
88°
66°
13
86°
65°
14
87°
63°
15
88°
63°
16
88°
62°
17
86°
63°
18
77°
55°
19
80°
54°
20
77°
53°
21
78°
54°
22
79°
55°
23
80°
59°
24
83°
54°
25
82°
52°
26
76°
51°
27
77°
53°
28
80°
54°
29
78°
58°
30
81°
52°
1
78°
56°
2
79°
56°
3
80°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Lyman
Lyman's September 2026 forecast shows daily high temperatures ranging from 76° to 89°, with overnight lows between 51° and 68°. The average high for September is 83° with an average low of 60°. 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.
