S
M
T
W
T
F
S
30
73°
61°
31
72°
54°
1
72°
50°
2
68°
55°
3
77°
64°
4
68°
55°
5
70°
54°
6
79°
54°
7
75°
57°
8
N/A
9
67°
48°
10
67°
57°
11
70°
45°
12
71°
59°
13
71°
54°
14
75°
59°
15
71°
51°
16
66°
49°
17
67°
51°
18
68°
50°
19
67°
51°
20
68°
49°
21
68°
52°
22
69°
51°
23
68°
51°
24
68°
50°
25
67°
48°
26
65°
46°
27
65°
48°
28
64°
49°
29
64°
49°
30
65°
48°
1
64°
44°
2
65°
48°
3
65°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Upwell
Upwell's September 2026 forecast shows daily high temperatures ranging from 64° to 75°, with overnight lows between 44° and 59°. The average high for September is 67° with an average low of 50°. 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 Upwell. See also: October | November | December.
