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7 Days
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Monthly
Precipitation
Temperature
Wind
Temperature Unit Selection
°Celsius
°Fahrenheit
Monthly Historical Averages
Winchester, CA
Content continues below
May
Average Temperature
High
27°
Feels 27
Low
11°
Feels 11
Average Precipitation
1 Days
Rain amount
4.6mm
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
18
19
20
21
22
28°
23
30°
24
29°
25
28°
26
24°
27
21°
28
24°
29
26°
30
30°
31
31°
Forecast
Friday, May 22, 2026
Day
28°
Feels 28
Wind
27 km/h S
Gust
41 km/h
Humidity
31%
P.O.P
20%
Night
10°
Feels 10
Wind
18 km/h S
Gust
28 km/h
Humidity
94%
P.O.P
10%
Historical Averages
May 22
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.