S
M
T
W
T
F
S
30
77°
64°
31
81°
68°
1
79°
59°
2
79°
50°
3
84°
55°
4
77°
61°
5
75°
59°
6
86°
63°
7
82°
66°
8
82°
68°
9
72°
55°
10
81°
50°
11
77°
63°
12
61°
55°
13
64°
39°
14
59°
41°
15
64°
50°
16
66°
36°
17
66°
46°
18
72°
45°
19
68°
48°
20
63°
44°
21
64°
40°
22
64°
40°
23
65°
44°
24
69°
48°
25
70°
52°
26
70°
49°
27
67°
49°
28
66°
44°
29
65°
45°
30
67°
46°
1
66°
46°
2
60°
36°
3
61°
43°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Blackduck
Blackduck's September 2026 forecast shows daily high temperatures ranging from 60° to 70°, with overnight lows between 36° and 52°. The average high for September is 66° with an average low of 45°. 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 Blackduck. See also: October | November | December.
