S
M
T
W
T
F
S
26
84°
56°
27
83°
56°
28
76°
62°
29
85°
65°
30
75°
63°
1
64°
52°
2
71°
45°
3
74°
45°
4
80°
49°
5
81°
59°
6
86°
70°
7
78°
50°
8
74°
47°
9
80°
55°
10
82°
59°
11
81°
61°
12
85°
60°
13
83°
60°
14
84°
61°
15
85°
60°
16
80°
61°
17
81°
62°
18
81°
63°
19
84°
64°
20
81°
64°
21
80°
62°
22
82°
58°
23
80°
58°
24
80°
59°
25
82°
60°
26
82°
60°
27
81°
59°
28
82°
60°
29
83°
63°
30
84°
65°
31
83°
66°
1
84°
67°
2
85°
66°
3
84°
67°
4
84°
67°
5
85°
68°
6
87°
68°
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 71° to 87°, with overnight lows between 45° and 70°. The average high for May is 82° with an average low of 60°. 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.
