Now

65°

6 mph

01:00

63°

6 mph

02:00

62°

6 mph

03:00

61°

24%

6 mph

04:00

60°

23%

5 mph

05:00

60°

23%

5 mph

06:00

60°

24%

5 mph

07:00

60°

24%

4 mph

08:00

63°

22%

4 mph

09:00

67°

17%

4 mph

10:00

71°

14%

4 mph

11:00

76°

12%

4 mph

12:00

80°

6 mph

13:00

83°

10%

7 mph

14:00

89°

8 mph

15:00

91°

9 mph

16:00

91°

9 mph

17:00

89°

9 mph

18:00

85°

9 mph

19:00

80°

8 mph

20:00

74°

10%

7 mph

21:00

71°

11%

7 mph

22:00

69°

12%

7 mph

23:00

67°

13%

7 mph

10-day forecast

Updated 12:16 AM

Wed · Today · 19 Aug Sunny

95° 59° 5%

Thu · Tomorrow · 20 Aug Mostly cloudy

91° 60° 10%

Friday · 21 Aug Mostly cloudy

87° 62° 6%

Saturday · 22 Aug Sunny

91° 62° 2%

Sunday · 23 Aug Sunny

92° 67° 2%

Monday · 24 Aug Mostly cloudy

85° 62° 6%

Tuesday · 25 Aug Sunny

84° 59° 5%

Wednesday · 26 Aug Mostly cloudy

88° 62° 9%

Thursday · 27 Aug Sunny

85° 60° 6%

Friday · 28 Aug Sunny

82° 57° 3%

Details & indices

Wind

6 mph SW

Gusts 9 mph

Humidity

63%

Dew point 53°

Pressure

29.88 inHg

Falling

UV index

9 — Very high

High today

Air Quality

Good

AQI 44 · US EPA

Allergy

Very high

Mugwort

Visibility

6 mi

Clear view

Allergy — Clayton

🌿 Conditions right now

View all →

Birch

None

Grass

Moderate

Oak

None

Alder

None

Hazel

None

Mugwort

High

Ragweed

Moderate

Sun & moon

Sunrise6:26 AM

Sunset7:56 PM

Length of day13h 30m

Moonrise2:58 PM

Moonset—

Moon phase🌓 First Quarter · 52%

Next full moonAug 27 Sturgeon Moon

Latitude37.9410°N

Longitude-121.9358°E

Water temps nearby

View all →

Stinson Beach (39 mi)60°

🌤️No rain expected in the next 90 minutes

Now+30+60+90 min

Minute-by-minute precip · HRRR nowcast

Daily planner

computed from today's forecast

Laundry day

Great

Line-drying weather

Grilling

Great

Fire up the grill

Running

Fair

Lace up outside

Patio

Great

Dinner outdoors

Nearby places in {{REGION}}

🌤️

Data sources · Thursday, August 20

Where the Clayton forecast comes from

This page blends NOAA/NWS model guidance with global ensembles for the 10-day outlook, air quality and alerts. Data refreshes every hour, current conditions every 15 minutes. Coordinates: 37.9410°N, -121.9358°.

NBM + global weather models

Updated: 12:16 AM

Weather in Clayton

Clayton's outlook: warmest day near 95° (Wednesday), coldest night about 57° (Friday). Essentially no rain is in the forecast — expect a dry stretch. No watches or warnings are active for the area right now. Right now Clayton is about 38° cooler than nearby Sacramento. Longer view: Mediterranean pattern — nearly all rain lands November through March.

Clayton, CA · Elev 394 ft · 37.94°N, 121.94°W · California · Forecast computed for these exact coordinates

Clayton, CA Weather (94527)

Weather map — Clayton

Today · Wed 8/19

Overnight · Thu 8/20

Tomorrow · Thu 8/20

7-day trend

10-day forecast

Details & indices

🌿 Conditions right now

Sun & moon

Water temps nearby

Daily planner