S
M
T
W
T
F
S
30
85°
60°
31
81°
56°
1
76°
55°
2
77°
56°
3
80°
57°
4
80°
57°
5
77°
58°
6
76°
58°
7
78°
57°
8
75°
56°
9
79°
58°
10
81°
59°
11
78°
57°
12
78°
55°
13
71°
56°
14
73°
54°
15
66°
49°
16
66°
54°
17
76°
53°
18
74°
56°
19
75°
55°
20
77°
54°
21
70°
53°
22
69°
49°
23
63°
45°
24
64°
48°
25
70°
51°
26
71°
52°
27
74°
53°
28
74°
53°
29
73°
52°
30
70°
50°
1
70°
49°
2
67°
49°
3
66°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Alberta
Alberta's September 2026 forecast shows daily high temperatures ranging from 63° to 85°, with overnight lows between 45° and 60°. The average high for September is 74° with an average low of 54°. 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 Alberta. See also: October | November | December.
