S
M
T
W
T
F
S
30
67°
55°
31
65°
54°
1
67°
55°
2
66°
54°
3
65°
53°
4
66°
51°
5
66°
54°
6
65°
53°
7
66°
55°
8
66°
54°
9
66°
53°
10
64°
52°
11
65°
54°
12
65°
53°
13
64°
51°
14
62°
52°
15
61°
52°
16
62°
51°
17
63°
48°
18
60°
52°
19
59°
53°
20
63°
53°
21
62°
52°
22
62°
51°
23
61°
49°
24
60°
51°
25
Hist. Avg.
57°
47°
26
Hist. Avg.
57°
47°
27
Hist. Avg.
57°
47°
28
Hist. Avg.
56°
47°
29
Hist. Avg.
56°
46°
30
Hist. Avg.
56°
46°
1
Hist. Avg.
56°
46°
2
Hist. Avg.
56°
46°
3
Hist. Avg.
56°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Grassington
Grassington's September 2026 forecast shows daily high temperatures ranging from 59° to 67°, with overnight lows between 48° and 55°. The average high for September is 64° 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 Grassington. See also: October | November | December.
