S
M
T
W
T
F
S
27
74°
56°
28
77°
49°
29
86°
56°
30
89°
53°
1
86°
52°
2
84°
50°
3
98°
59°
4
98°
64°
5
93°
62°
6
90°
54°
7
90°
54°
8
94°
55°
9
92°
54°
10
75°
54°
11
71°
45°
12
71°
46°
13
71°
46°
14
83°
47°
15
90°
50°
16
91°
53°
17
89°
57°
18
87°
46°
19
67°
51°
20
71°
49°
21
71°
55°
22
70°
55°
23
78°
52°
24
77°
46°
25
76°
46°
26
74°
48°
27
68°
44°
28
71°
45°
29
70°
42°
30
67°
44°
31
69°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Napa
Napa's October 2026 forecast shows daily high temperatures ranging from 67° to 69°, with overnight lows between 44° and 45°. The average high for October is 68° with an average low of 45°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how October weather will actually feel in Napa. See also: November | December | January.
