S
M
T
W
T
F
S
27
55°
32°
28
55°
33°
29
54°
32°
30
52°
32°
31
54°
30°
1
53°
30°
2
53°
35°
3
55°
46°
4
63°
48°
5
68°
46°
6
71°
37°
7
67°
31°
8
54°
34°
9
54°
31°
10
52°
31°
11
54°
32°
12
56°
29°
13
52°
30°
14
52°
30°
15
54°
31°
16
53°
30°
17
51°
28°
18
50°
26°
19
49°
26°
20
50°
34°
21
53°
44°
22
61°
39°
23
64°
37°
24
55°
33°
25
54°
32°
26
56°
33°
27
59°
35°
28
62°
42°
29
63°
40°
30
53°
33°
31
51°
28°
1
Hist. Avg.
62°
42°
2
Hist. Avg.
63°
42°
3
Hist. Avg.
63°
42°
4
Hist. Avg.
63°
42°
5
Hist. Avg.
63°
42°
6
Hist. Avg.
63°
43°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
January Weather in Riverside
Riverside's January 2027 forecast shows daily high temperatures ranging from 49° to 71°, with overnight lows between 26° and 48°. The average high for January is 56° with an average low of 34°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how January weather will actually feel in Riverside. See also: February | March | April.
