S
M
T
W
T
F
S
26
56°
46°
27
65°
44°
28
70°
44°
29
78°
53°
30
82°
51°
1
80°
53°
2
62°
48°
3
57°
49°
4
67°
47°
5
63°
48°
6
71°
52°
7
79°
47°
8
84°
46°
9
86°
56°
10
84°
51°
11
86°
56°
12
79°
48°
13
77°
51°
14
84°
53°
15
89°
58°
16
80°
52°
17
76°
49°
18
85°
57°
19
89°
65°
20
86°
64°
21
89°
64°
22
80°
47°
23
57°
49°
24
62°
48°
25
59°
47°
26
69°
47°
27
68°
47°
28
69°
49°
29
69°
49°
30
75°
47°
31
80°
53°
1
85°
64°
2
78°
54°
3
85°
53°
4
83°
51°
5
84°
52°
6
75°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Russian River-Sonoma Coast
Russian River-Sonoma Coast's May 2026 forecast shows daily high temperatures ranging from 75° to 85°, with overnight lows between 49° and 54°. The average high for May is 81° with an average low of 52°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in Russian River-Sonoma Coast. See also: June | July | August.
