S
M
T
W
T
F
S
30
86°
64°
31
87°
59°
1
88°
57°
2
81°
56°
3
80°
63°
4
83°
64°
5
84°
59°
6
87°
55°
7
79°
55°
8
80°
62°
9
80°
59°
10
85°
60°
11
79°
60°
12
80°
56°
13
77°
52°
14
76°
51°
15
76°
53°
16
77°
56°
17
78°
58°
18
83°
59°
19
83°
59°
20
81°
58°
21
82°
56°
22
81°
55°
23
82°
49°
24
81°
48°
25
72°
47°
26
73°
50°
27
81°
55°
28
78°
56°
29
Hist. Avg.
73°
48°
30
Hist. Avg.
73°
48°
1
Hist. Avg.
72°
47°
2
Hist. Avg.
72°
47°
3
Hist. Avg.
72°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Griggsville
Griggsville's September 2026 forecast shows daily high temperatures ranging from 72° to 88°, with overnight lows between 47° and 64°. The average high for September is 81° with an average low of 56°. 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 Griggsville. See also: October | November | December.
