S
M
T
W
T
F
S
30
68°
56°
31
78°
56°
1
75°
50°
2
75°
55°
3
70°
50°
4
70°
48°
5
75°
56°
6
78°
50°
7
66°
53°
8
77°
52°
9
78°
57°
10
74°
54°
11
73°
51°
12
75°
52°
13
74°
54°
14
75°
55°
15
74°
56°
16
70°
54°
17
72°
53°
18
76°
54°
19
74°
50°
20
65°
54°
21
66°
54°
22
64°
51°
23
63°
50°
24
65°
54°
25
67°
54°
26
62°
52°
27
61°
49°
28
60°
47°
29
60°
44°
30
61°
45°
1
66°
50°
2
68°
52°
3
68°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Agassiz
Agassiz's September 2026 forecast shows daily high temperatures ranging from 60° to 78°, with overnight lows between 44° and 57°. The average high for September is 69° with an average low of 52°. 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 Agassiz. See also: October | November | December.
