S
M
T
W
T
F
S
30
89°
56°
31
82°
55°
1
81°
56°
2
81°
59°
3
82°
56°
4
83°
62°
5
87°
61°
6
88°
54°
7
85°
56°
8
80°
53°
9
79°
52°
10
79°
59°
11
82°
52°
12
81°
53°
13
78°
52°
14
77°
58°
15
81°
59°
16
84°
50°
17
84°
48°
18
75°
48°
19
74°
49°
20
74°
53°
21
75°
50°
22
73°
48°
23
72°
53°
24
73°
52°
25
74°
53°
26
79°
53°
27
79°
47°
28
78°
45°
29
72°
47°
30
71°
51°
1
72°
52°
2
75°
49°
3
77°
43°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Lahaska
Lahaska's September 2026 forecast shows daily high temperatures ranging from 71° to 89°, with overnight lows between 43° and 62°. The average high for September is 79° with an average low of 53°. 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 Lahaska. See also: October | November | December.
