S
M
T
W
T
F
S
27
64°
46°
28
63°
50°
29
66°
51°
30
70°
51°
31
72°
50°
1
70°
52°
2
69°
43°
3
64°
43°
4
62°
42°
5
62°
42°
6
63°
43°
7
63°
46°
8
62°
47°
9
64°
46°
10
65°
47°
11
65°
46°
12
67°
45°
13
66°
46°
14
64°
46°
15
63°
47°
16
65°
46°
17
66°
48°
18
66°
48°
19
67°
51°
20
65°
46°
21
64°
47°
22
65°
47°
23
67°
51°
24
68°
49°
25
68°
46°
26
67°
48°
27
66°
52°
28
65°
49°
29
63°
47°
30
62°
44°
31
Hist. Avg.
69°
49°
1
Hist. Avg.
69°
49°
2
Hist. Avg.
69°
49°
3
Hist. Avg.
69°
49°
4
Hist. Avg.
69°
49°
5
Hist. Avg.
69°
49°
6
Hist. Avg.
69°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
January Weather in Irvine
Irvine's January 2027 forecast shows daily high temperatures ranging from 62° to 72°, with overnight lows between 42° and 52°. The average high for January is 65° with an average low of 47°. 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 Irvine. See also: February | March | April.
