S
M
T
W
T
F
S
30
82°
60°
31
73°
58°
1
73°
57°
2
76°
55°
3
70°
52°
4
79°
54°
5
77°
56°
6
80°
58°
7
70°
63°
8
70°
58°
9
72°
54°
10
81°
49°
11
70°
54°
12
58°
45°
13
64°
42°
14
58°
38°
15
63°
42°
16
60°
41°
17
64°
42°
18
68°
41°
19
66°
55°
20
61°
41°
21
67°
38°
22
N/A
23
61°
54°
24
73°
51°
25
73°
59°
26
65°
44°
27
63°
42°
28
60°
37°
29
61°
39°
30
62°
38°
1
61°
39°
2
59°
38°
3
59°
39°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Plumas
Plumas's September 2026 forecast shows daily high temperatures ranging from 59° to 73°, with overnight lows between 37° and 59°. The average high for September is 63° with an average low of 44°. 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 Plumas. See also: October | November | December.
