S
M
T
W
T
F
S
27
84°
53°
28
84°
52°
29
83°
51°
30
80°
51°
1
85°
53°
2
78°
54°
3
84°
52°
4
84°
55°
5
85°
55°
6
84°
54°
7
80°
55°
8
79°
54°
9
78°
52°
10
80°
54°
11
75°
54°
12
75°
53°
13
80°
54°
14
81°
50°
15
79°
51°
16
81°
53°
17
80°
52°
18
79°
52°
19
72°
45°
20
71°
47°
21
72°
45°
22
71°
48°
23
71°
48°
24
72°
49°
25
73°
48°
26
75°
50°
27
75°
49°
28
73°
49°
29
72°
50°
30
69°
48°
31
75°
50°
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 69° to 85°, with overnight lows between 45° and 55°. The average high for October is 78° with an average low of 51°. 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.
