S
M
T
W
T
F
S
30
95°
63°
31
96°
61°
1
95°
60°
2
93°
60°
3
93°
61°
4
94°
63°
5
95°
65°
6
96°
61°
7
91°
59°
8
89°
61°
9
91°
61°
10
90°
56°
11
88°
56°
12
88°
55°
13
87°
55°
14
87°
54°
15
86°
58°
16
85°
57°
17
88°
56°
18
89°
54°
19
86°
57°
20
90°
58°
21
91°
59°
22
92°
59°
23
85°
61°
24
92°
61°
25
92°
57°
26
Hist. Avg.
86°
57°
27
Hist. Avg.
86°
56°
28
Hist. Avg.
86°
56°
29
Hist. Avg.
86°
56°
30
Hist. Avg.
85°
56°
1
Hist. Avg.
85°
56°
2
Hist. Avg.
84°
55°
3
Hist. Avg.
84°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Eugene
Eugene's September 2026 forecast shows daily high temperatures ranging from 85° to 96°, with overnight lows between 54° and 65°. The average high for September is 91° with an average low of 59°. 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 Eugene. See also: October | November | December.
