The Weather Network
Weather
Maps
News
Video
|
Welcome
Monthly
⋮
Current
Hourly
7 Days
14 Days
Weekend
Monthly
Precipitation
Temperature
Wind
Temperature Unit Selection
°Celsius
°Fahrenheit
Monthly Historical Averages
Montclair, CA
Content continues below
May
Average Temperature
High
26°
Feels 26
Low
12°
Feels 12
Average Precipitation
1 Days
Rain amount
4.3mm
Snow amount
0cm
Content continues below
Daily Historical Averages
May 2026
S
M
T
W
T
F
S
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
20°
18
25°
19
27°
20
29°
21
27°
22
26°
23
26°
24
24°
25
25°
26
23°
27
24°
28
25°
29
26°
30
26°
31
27°
Forecast
Sunday, May 17, 2026
Day
20°
Feels 20
Wind
25 km/h W
Gust
37 km/h
Humidity
54%
P.O.P
30%
Night
12°
Feels 12
Wind
18 km/h SW
Gust
27 km/h
Humidity
82%
P.O.P
20%
Historical Averages
May 17
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.