Clayton, CA Weather Forecast
Contra Costa County, California
Live radar, warnings and storm tracking for Clayton, with free alerts the moment it counts.
The next few hours
Dry for the moment, with rain moving in this afternoon
It is 53° with a dew point of 46°, which is dry for this time of year. The sky is mostly cloudy. The air is close to calm.
The wind turns to the west around 5 PM. The first rain arrives between 3 PM and 4 PM, with the best chance of it around 2 AM. That leaves a usable window outdoors until about 3 PM, and it closes quickly after that.
Taller, warmer bars mean heavier rain. Dotted means no reading for that hour.
Hour by hour
Wet through the window, then cooler and clearing
The wet part of the window runs from about 3 PM to 7 AM, 16 hours of it, with the highest chance near 2 AM. Total accumulation over the window comes to about 0.47 in.
It tapers off after 7 AM. Pressure rises 0.03 inHg behind it, which is the drier air arriving. The overnight low settles near 51°. Tomorrow tops out near 59°.
Sunrise and sunset
Next five days, scored 0 to 100The first day or two use the HRRR and NBM cloud layers. Later days only have total cloud, so treat them as a rough guide.
Know when sunset at this place will be worth a photo
We score every sunrise and sunset here from the cloud, haze and smoke forecast, and let you know when one is likely to light up. Sunrise the evening before, sunset a few hours ahead.
Seven-day outlook
41–63°F across the weekThe week runs between 41° and 63°, with today the warmest day of it. There is no real trend across it: one day looks much like the next. Wednesday is the wettest day, peaking near 99%. 3 of the 7 days stay dry.
Free alerts for Clayton
Every NWS warning, pushed to your phone, inbox or webhook the moment it is issued.
Clayton, CA at a glance
Clayton is home to about 10,754 people in Contra Costa County, across 3.8 square miles. It ranks 365th by population of 450 places in California with a forecast here. The nearest neighbour with its own forecast is Concord, 4 miles away.
- County
- Contra Costa County
- Population
- 10,754 2023 est.
- Land area
- 3.8 sq mi
- People per sq mi
- 2,801
- Forecast point
- 37.9403°N, 121.9301°W
How well can the network see Clayton?
The nearest Doppler radar is KDAX (Sacramento, CA), to the NNE. Its lowest scan passes about 2,700 ft above Clayton. Close enough to see rotation in the low part of a storm, where tornadoes form. Clayton is closer to its radar than 54% of US cities.
The closest weather station is KCCR (Concord/Buchanan Fld). Representative on most days, though a thunderstorm can hit one and miss the other.
Forecasts near Clayton
- Concord, CA4 mi
- Pittsburg, CA6 mi
- Walnut Creek, CA7 mi
- Antioch, CA8 mi
- Pleasant Hill, CA8 mi
- Danville, CA9 mi
- Martinez, CA11 mi
- Lafayette, CA11 mi
Elsewhere in California
Los AngelesSan DiegoSan JoseSan FranciscoFresnoSacramentoAll California forecasts →

