California · NWS MTR office

Oakley, CA weather

It is 55°F at BLACK DIAMOND as of Oct 27, 10:28 PM PDT. Tonight: Mostly Clear, low near 52°F. Forecast from the National Weather Service, issued Oct 27, 3:07 PM PDT.

Updated Oct 27, 11:23 PM PDT (snapshot)

Current conditions

Temperature

55°F

Mostly Clear

Wind

SSE 4 mph, gusts 5 mph

Humidity 65% · dew point 44°F

Pressure · visibility

—

Visibility —

Observed at BLACK DIAMOND (PIBC1), Oct 27, 10:28 PM PDT. Station readings can lag or be missing.

Alerts for this area

No active NWS alerts cover the Oakley forecast zone right now.

Around the NWS MTR forecast area

2 active alerts cover zones served by the MTR office near Oakley:

  • Coastal Flood Advisory (2)

From the alert snapshot of Oct 28, 2026, 2:15 AM EDT. California has 8 active alerts: see them all.

For official warnings, check weather.gov and your local authorities. OpenForecast repeats National Weather Service alerts and may be delayed or incomplete. Follow instructions from emergency officials.

Next 24 hours

Hourly forecast for Oakley (local time)
TimeTempForecastPrecip. chanceWind
Tue 11 PM56°FMostly Clear0%W 2 mph
Wed 12 AM56°FMostly Clear0%WNW 2 mph
Wed 1 AM55°FMostly Clear0%WNW 3 mph
Wed 2 AM54°FMostly Clear0%WNW 5 mph
Wed 3 AM54°FMostly Clear0%WNW 6 mph
Wed 4 AM53°FMostly Clear0%NW 7 mph
Wed 5 AM52°FMostly Clear0%NW 7 mph
Wed 6 AM52°FSunny0%NW 7 mph
Wed 7 AM52°FSunny0%NW 7 mph
Wed 8 AM52°FSunny0%WNW 7 mph
Wed 9 AM55°FSunny0%NW 8 mph
Wed 10 AM57°FSunny0%NNW 8 mph
Wed 11 AM60°FSunny0%NNW 9 mph
Wed 12 PM61°FSunny0%NNW 8 mph
Wed 1 PM64°FSunny0%NNW 8 mph
Wed 2 PM66°FSunny0%NNW 8 mph
Wed 3 PM68°FSunny0%NNW 6 mph
Wed 4 PM68°FSunny0%WNW 5 mph
Wed 5 PM68°FSunny0%W 3 mph
Wed 6 PM67°FMostly Clear0%W 3 mph
Wed 7 PM64°FMostly Clear0%W 3 mph
Wed 8 PM61°FPartly Cloudy0%W 2 mph
Wed 9 PM59°FPartly Cloudy0%W 2 mph
Wed 10 PM58°FPartly Cloudy0%W 2 mph

Hourly values come from the NWS gridded forecast for the 2.5 km grid square that covers the city's center point. Conditions elsewhere in Oakley can differ.

7-day forecast

Tonight

Low 52°F

Mostly clear, with a low around 52. West northwest wind 2 to 7 mph.

Wednesday

High 68°F·Low 53°F

Sunny, with a high near 68. Northwest wind 3 to 9 mph.

Wednesday Night: Mostly cloudy, with a low around 53. West wind 0 to 3 mph.

Thursday

High 66°F·Low 54°F

Mostly cloudy, with a high near 66. North wind 0 to 3 mph.

Thursday Night: Mostly cloudy, with a low around 54. West wind 1 to 5 mph.

Friday

High 67°F·Low 49°F

Mostly sunny, with a high near 67.

Friday Night: Partly cloudy, with a low around 49.

Saturday

High 64°F·Low 48°F

A slight chance of rain after 11am. Partly sunny, with a high near 64.

Saturday Night: A slight chance of rain. Partly cloudy, with a low around 48.

Sunday

High 65°F·Low 49°F

A slight chance of rain before 10am. Sunny, with a high near 65.

Sunday Night: Mostly clear, with a low around 49.

Monday

High 66°F·Low 50°F

Mostly sunny, with a high near 66.

Monday Night: Partly cloudy, with a low around 50.

Tuesday

High 67°F

A chance of rain between 10am and 5pm. Mostly sunny, with a high near 67.

Nearby cities

Larger cities in the area

Other cities in Contra Costa County

See every city we cover in California, or check all active alerts.

About this forecast

Forecast office
Oakley is served by the National Weather Service MTR forecast office, forecast zone CAZ510, county zone CAC013.
Location used
The Census Bureau's internal point for Oakley (37.9961, -121.6936), in Contra Costa County. Population: 47,158 (2024 estimate), number 188 of the 296 California cities on this site.
Radar
Nearest NWS radar: KDAX. View it on radar.weather.gov.

On Amazon

Weather-ready picks

As an Amazon Associate I earn from qualifying purchases.

Home & kitchen LEVOIT Air Purifier An air purifier for smoky or high-pollen days indoors. View on Amazon → Men’s fashion Hanes Fleece Hooded Sweatshirt A warm hoodie for chilly mornings. View on Amazon → Fitness & outdoors Stanley Quencher H2.0 Tumbler A big tumbler for long commutes and outdoor days. View on Amazon → Fitness & outdoors LifeStraw Personal Water Filter A personal water filter worth adding to an emergency kit. View on Amazon →

Sources

  • Forecast, hourly forecast, observations and alerts: National Weather Service API, api.weather.gov/points/37.9961,-121.6936 (forecast issued Oct 27, 3:07 PM PDT).
  • Official forecast page: forecast.weather.gov.
  • City location and population: U.S. Census Bureau, Vintage 2024 population estimates and 2024 Gazetteer files.
  • Snapshot taken Oct 28, 2026. The NWS and Census Bureau do not endorse OpenForecast.

More California cities