S
M
T
W
T
F
S
30
92°
64°
31
98°
67°
1
100°
71°
2
96°
72°
3
99°
71°
4
99°
74°
5
101°
73°
6
90°
69°
7
88°
59°
8
95°
74°
9
99°
73°
10
81°
64°
11
86°
67°
12
90°
70°
13
90°
69°
14
95°
71°
15
82°
60°
16
81°
59°
17
81°
61°
18
79°
56°
19
76°
55°
20
80°
55°
21
79°
54°
22
80°
59°
23
81°
59°
24
83°
58°
25
84°
60°
26
84°
60°
27
83°
59°
28
83°
60°
29
82°
60°
30
83°
58°
1
79°
53°
2
70°
48°
3
69°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Marissa
Marissa's September 2026 forecast shows daily high temperatures ranging from 69° to 99°, with overnight lows between 45° and 74°. The average high for September is 83° with an average low of 60°. 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 Marissa. See also: October | November | December.
