S
M
T
W
T
F
S
30
77°
46°
31
81°
50°
1
77°
47°
2
75°
45°
3
77°
47°
4
76°
45°
5
82°
53°
6
83°
53°
7
83°
47°
8
82°
48°
9
Hist. Avg.
80°
49°
10
Hist. Avg.
80°
49°
11
Hist. Avg.
80°
49°
12
Hist. Avg.
80°
49°
13
Hist. Avg.
79°
48°
14
Hist. Avg.
79°
48°
15
Hist. Avg.
79°
48°
16
Hist. Avg.
78°
48°
17
Hist. Avg.
78°
48°
18
Hist. Avg.
78°
48°
19
Hist. Avg.
77°
47°
20
Hist. Avg.
77°
47°
21
Hist. Avg.
76°
47°
22
Hist. Avg.
76°
47°
23
Hist. Avg.
76°
46°
24
Hist. Avg.
75°
46°
25
Hist. Avg.
75°
46°
26
Hist. Avg.
74°
46°
27
Hist. Avg.
74°
46°
28
Hist. Avg.
74°
45°
29
Hist. Avg.
73°
45°
30
Hist. Avg.
73°
45°
1
Hist. Avg.
72°
45°
2
Hist. Avg.
72°
44°
3
Hist. Avg.
71°
44°
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 75° to 83°, with overnight lows between 45° and 53°. The average high for September is 79° with an average low of 48°. 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.
