S
M
T
W
T
F
S
30
80°
61°
31
78°
61°
1
77°
67°
2
76°
67°
3
84°
66°
4
84°
67°
5
83°
65°
6
79°
60°
7
80°
65°
8
79°
59°
9
75°
58°
10
75°
58°
11
76°
59°
12
77°
57°
13
76°
63°
14
80°
59°
15
75°
57°
16
74°
58°
17
73°
57°
18
74°
61°
19
77°
55°
20
76°
57°
21
76°
58°
22
79°
54°
23
73°
54°
24
73°
53°
25
72°
55°
26
73°
59°
27
76°
59°
28
77°
60°
29
78°
52°
30
72°
53°
1
70°
59°
2
76°
58°
3
77°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in District 1, La Plata
District 1, La Plata's September 2026 forecast shows daily high temperatures ranging from 70° to 84°, with overnight lows between 52° and 67°. The average high for September is 77° with an average low of 59°. 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 District 1, La Plata. See also: October | November | December.