S
M
T
W
T
F
S
30
87°
52°
31
87°
49°
1
83°
51°
2
83°
49°
3
84°
45°
4
79°
49°
5
84°
52°
6
86°
49°
7
87°
47°
8
78°
51°
9
83°
50°
10
84°
49°
11
79°
50°
12
83°
49°
13
81°
49°
14
82°
50°
15
85°
50°
16
78°
47°
17
82°
41°
18
Hist. Avg.
79°
42°
19
Hist. Avg.
78°
42°
20
Hist. Avg.
78°
41°
21
Hist. Avg.
77°
41°
22
Hist. Avg.
77°
40°
23
Hist. Avg.
76°
40°
24
Hist. Avg.
76°
39°
25
Hist. Avg.
75°
39°
26
Hist. Avg.
75°
38°
27
Hist. Avg.
74°
38°
28
Hist. Avg.
74°
38°
29
Hist. Avg.
73°
37°
30
Hist. Avg.
73°
36°
1
Hist. Avg.
72°
36°
2
Hist. Avg.
72°
36°
3
Hist. Avg.
71°
35°
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 78° to 87°, with overnight lows between 41° and 52°. The average high for September is 83° with an average low of 49°. 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.
