S
M
T
W
T
F
S
30
58°
31°
31
60°
33°
1
61°
32°
2
59°
33°
3
58°
35°
4
61°
31°
5
59°
33°
6
58°
32°
7
57°
29°
8
56°
35°
9
59°
34°
10
58°
27°
11
56°
32°
12
60°
33°
13
Hist. Avg.
69°
34°
14
Hist. Avg.
69°
34°
15
Hist. Avg.
68°
34°
16
Hist. Avg.
68°
34°
17
Hist. Avg.
68°
33°
18
Hist. Avg.
68°
33°
19
Hist. Avg.
67°
33°
20
Hist. Avg.
67°
32°
21
Hist. Avg.
66°
32°
22
Hist. Avg.
66°
32°
23
Hist. Avg.
66°
31°
24
Hist. Avg.
66°
31°
25
Hist. Avg.
65°
31°
26
Hist. Avg.
65°
30°
27
Hist. Avg.
64°
30°
28
Hist. Avg.
64°
30°
29
Hist. Avg.
64°
29°
30
Hist. Avg.
63°
29°
1
Hist. Avg.
63°
29°
2
Hist. Avg.
63°
28°
3
Hist. Avg.
62°
28°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in La Plata
La Plata's September 2026 forecast shows daily high temperatures ranging from 56° to 61°, with overnight lows between 27° and 35°. The average high for September is 59° with an average low of 32°. 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 La Plata. See also: October | November | December.
