S
M
T
W
T
F
S
30
76°
41°
31
79°
44°
1
84°
49°
2
87°
51°
3
87°
46°
4
84°
41°
5
74°
38°
6
75°
45°
7
80°
43°
8
83°
42°
9
78°
44°
10
78°
38°
11
76°
39°
12
76°
41°
13
77°
39°
14
73°
35°
15
70°
34°
16
70°
32°
17
69°
33°
18
70°
35°
19
71°
40°
20
79°
38°
21
79°
37°
22
74°
36°
23
70°
33°
24
66°
34°
25
64°
32°
26
65°
33°
27
65°
33°
28
67°
37°
29
72°
37°
30
66°
30°
1
63°
33°
2
Hist. Avg.
69°
36°
3
Hist. Avg.
68°
36°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Blaine
Blaine's September 2026 forecast shows daily high temperatures ranging from 63° to 87°, with overnight lows between 30° and 51°. The average high for September is 74° with an average low of 38°. 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 Blaine. See also: October | November | December.
