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Monthly
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Current
Hourly
7 Days
14 Days
Weekend
Monthly
°C
Temperature Unit Selection
°Celsius
°Fahrenheit
Monthly Historical Averages
Brentwood, CA
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March
Average Temperature
High
20°
Feels 19
Low
8°
Feels 7
Average Precipitation
7 Days
Rain amount
49.7mm
Snow amount
0cm
Content continues below
Daily Historical Averages
March 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
29°
23
28°
24
28°
25
26°
26
24°
27
26°
28
22°
29
25°
30
21°
31
20°
Forecast
Sunday, March 22, 2026
Day
29°
Feels 29
Wind
13 km/h W
Gust
20 km/h
Humidity
31%
P.O.P
20%
Night
13°
Feels 13
Wind
9 km/h SW
Gust
14 km/h
Humidity
70%
P.O.P
20%
Historical Averages
Mar 22
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.