S
M
T
W
T
F
S
27
18°
1°
28
22°
-3°
29
17°
13°
30
20°
-1°
31
32°
0°
1
15°
0°
2
17°
1°
3
22°
-1°
4
17°
-1°
5
17°
-2°
6
30°
-5°
7
26°
-6°
8
20°
-6°
9
13°
0°
10
15°
10°
11
21°
13°
12
29°
-2°
13
33°
-6°
14
21°
-9°
15
10°
-8°
16
11°
-5°
17
12°
-5°
18
12°
-4°
19
13°
-3°
20
13°
4°
21
14°
8°
22
15°
8°
23
17°
4°
24
18°
-2°
25
15°
1°
26
13°
8°
27
16°
12°
28
26°
10°
29
28°
5°
30
26°
-3°
31
22°
-4°
1
13°
11°
2
26°
-3°
3
29°
-2°
4
18°
-3°
5
18°
0°
6
22°
12°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
January Weather in Fallingbrook
Fallingbrook's January 2027 forecast shows daily high temperatures ranging from 10° to 33°, with overnight lows between -9° and 13°. The average high for January is 19° with an average low of 1°. 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 Fallingbrook. See also: February | March | April.
