S
M
T
W
T
F
S
26
56°
22°
27
52°
22°
28
62°
23°
29
64°
37°
30
68°
28°
1
72°
30°
2
76°
34°
3
78°
34°
4
77°
36°
5
74°
40°
6
76°
36°
7
71°
43°
8
71°
32°
9
74°
31°
10
81°
34°
11
75°
41°
12
89°
36°
13
77°
37°
14
67°
33°
15
65°
32°
16
52°
31°
17
54°
32°
18
65°
30°
19
64°
27°
20
74°
40°
21
74°
39°
22
79°
42°
23
86°
50°
24
85°
49°
25
81°
48°
26
62°
42°
27
69°
46°
28
78°
42°
29
76°
43°
30
77°
44°
31
78°
43°
1
82°
46°
2
76°
45°
3
70°
42°
4
78°
49°
5
71°
47°
6
70°
41°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Richland
Richland's May 2026 forecast shows daily high temperatures ranging from 62° to 86°, with overnight lows between 39° and 50°. The average high for May is 76° with an average low of 44°. 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 Richland. See also: June | July | August.
