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Weather in Brentwood, CA · National Weather Service + NOAA

It hardly ever freezes in Brentwood

Brentwood has mild winters and warm summers, with very little rain. A typical July afternoon reaches 90°, a January night drops to 40°, and snow is almost unheard of. A typical November afternoon reaches 65°, and nights fall to 45°.

Winter 58°/41°Spring 72°/48°Summer 89°/58°Fall 77°/51°
Right now
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Sunrise 9:36 am · sunset 8:04 pm

Getting the latest forecast from the National Weather Service…

What stands out about Brentwood’s weather

Read from 30 years of NOAA records. Each one opens the full story on the Climate page.

Climate →
It hardly ever freezesOnly 81% of years see a night at 32° or below.Snow is rareNo measurable snow in a normal year.A dry climateJust 14 inches of rain and melted snow a year, less than 95% of U.S. towns.Plenty of 90° daysAbout 64 days a year reach 90°.
A normal year

Where today sits in Brentwood’s year

Typical highs and lows month by month, from 30 years of NOAA records.

Full climate →
Winter
58° / 41°
Snow is rare
Spring
72° / 48°
Frost is rare by spring
Summer
89° / 58°
64 days reach 90° in a normal year
Fall now
77° / 51°
Mild well into the fall
Best months to be outside
MarAprMayOctNov
Highs of 62–84° and lows of 40° or more
How much snow does Brentwood get?Almost none.When is it wettest?January, with 3.0 inches.Is it warmer than it used to be?+1.5° vs. the 20th century.

Weather talk

Road reports, first frosts and storm memories from neighbors in Brentwood.

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Forecast, conditions and alerts: National Weather Service. Climate: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000. Temperatures and rainfall come from NOAA’s gridded normals for Brentwood itself (about a 3-mile square). Snow, frost dates and day counts: the NOAA station at Antioch Pumping Plt #3, CA (4 mi). Sunrise and sunset are calculated from the town’s position. Normals are 30-year averages, not a forecast.