S
M
T
W
T
F
S
30
65°
51°
31
64°
49°
1
65°
51°
2
64°
47°
3
64°
52°
4
64°
52°
5
66°
51°
6
66°
50°
7
65°
51°
8
64°
50°
9
63°
46°
10
64°
45°
11
59°
49°
12
60°
50°
13
63°
49°
14
63°
49°
15
62°
48°
16
62°
50°
17
63°
50°
18
63°
47°
19
62°
45°
20
61°
44°
21
61°
49°
22
60°
47°
23
61°
44°
24
59°
46°
25
58°
47°
26
60°
48°
27
59°
47°
28
60°
47°
29
60°
46°
30
59°
47°
1
60°
47°
2
59°
46°
3
59°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Blackburn
Blackburn's September 2026 forecast shows daily high temperatures ranging from 58° to 66°, with overnight lows between 44° and 52°. The average high for September is 62° with an average low of 48°. 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 Blackburn. See also: October | November | December.
