S
M
T
W
T
F
S
26
77°
49°
27
75°
53°
28
63°
48°
29
61°
40°
30
57°
36°
1
57°
35°
2
62°
34°
3
77°
46°
4
83°
41°
5
61°
43°
6
57°
37°
7
68°
33°
8
75°
45°
9
75°
49°
10
71°
42°
11
71°
40°
12
82°
49°
13
74°
47°
14
77°
41°
15
84°
57°
16
85°
61°
17
85°
67°
18
82°
64°
19
68°
47°
20
66°
47°
21
68°
50°
22
68°
53°
23
74°
56°
24
77°
55°
25
79°
57°
26
79°
56°
27
78°
56°
28
80°
55°
29
81°
58°
30
78°
55°
31
80°
61°
1
82°
60°
2
80°
59°
3
73°
55°
4
73°
54°
5
76°
61°
6
80°
62°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in River Junction
River Junction's May 2026 forecast shows daily high temperatures ranging from 66° to 85°, with overnight lows between 47° and 67°. The average high for May is 77° with an average low of 57°. 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 River Junction. See also: June | July | August.
