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WeatherLive › California › San Ramon

San Ramon, CA Weather (94570)

ZIP codes: 94570 · 94575
Today Hourly 10-Day Weekend Monthly Radar Air Quality Climate
Current WeatherSan Ramon · 9:49 AM PDT
80° | 56°
61°F
Feels like 61°
Mostly cloudy
WindSW 4 mph · Gusts 4 mph
Precip17% · –
Humidity88% · Dew point 57°
UV index9 Very high
Air Quality31 Good
Pressure29.97 inHg
Visibility6 mi
Sunrise / Sunset6:27 AM · 7:54 PM · 13h 27m

Weather map — San Ramon

Full radar →
Now
61°
28%
4 mph
10:00
65°
21%
4 mph
11:00
69°
17%
5 mph
12:00
73°
8%
5 mph
13:00
75°
12%
6 mph
14:00
80°
9%
6 mph
15:00
79°
9%
6 mph
16:00
78°
10%
6 mph
17:00
74°
10%
6 mph
18:00
70°
11%
6 mph
19:00
65°
14%
5 mph
20:00
61°
21%
5 mph
21:00
60°
27%
4 mph
22:00
62°
22%
5 mph
23:00
60°
24%
4 mph
00:00
60°
25%
4 mph
01:00
60°
25%
4 mph
02:00
59°
17%
4 mph
03:00
59°
13%
4 mph
04:00
59°
13%
4 mph
05:00
58°
19%
4 mph
06:00
58°
29%
4 mph
07:00
59°
26%
4 mph
08:00
60°
21%
4 mph

Today · Thu 8/20

High 80°
17% / –

Mostly cloudy. Winds SW at 6 mph.

Tonight · Thu 8/20

Low 58°
27% / –

Mostly cloudy. Winds SW at 4 mph.

Tomorrow · Fri 8/21

82° | 58°
9% / –

Mostly cloudy. Winds W at 8 mph.

7-day trend

San Ramon · temperature + precipitation

10-day forecast

Updated 9:49 AM

Details & indices

Wind
4 mph SW
Gusts 4 mph
Humidity
88%
Dew point 57°
Pressure
29.97 inHg
Rising
UV index
9 — Very high
High today
Air Quality
Good
AQI 31 · US EPA
Allergy
Very high
Mugwort
Visibility
6 mi
Clear view
Allergy — San Ramon

🌿 Conditions right now

View all →
Birch
None
Grass
Moderate
Oak
None
Alder
None
Hazel
None
Mugwort
High
Ragweed
Low

Sun & moon

Sunrise6:27 AM
Sunset7:54 PM
Length of day13h 27m
Moonrise2:58 PM
Moonset—
Moon phase🌓 First Quarter · 56%
Next full moonAug 27 Sturgeon Moon
Latitude37.7799°N
Longitude-121.9780°E

Water temps nearby

View all →
Stinson Beach (37 mi)60°
Santa Cruz Main Beach (57 mi)63°
🌤️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
Fair
Line-drying weather
Grilling
Great
Fire up the grill
Running
Fair
Lace up outside
Patio
Great
Dinner outdoors
Nearby places in {{REGION}}
Los Angeles
Sunny
64° 🌤️
San Diego
—
—
San Jose
Fog
60° 🌤️
San Francisco
—
— 🌤️
Fresno
—
—
Sacramento
Mostly cloudy
69°
Data sources · Thursday, August 20
Where the San Ramon 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: 37.7799°N, -121.9780°.
NBM + global weather models
Updated: 9:49 AM
Weather in San Ramon
The 10-day span for San Ramon runs from a high near 89° on Sunday down to 54° overnight on Saturday. The gauge should stay near zero — no meaningful precipitation is expected. No active NWS alerts at the moment — quiet on the hazards front. Right now San Ramon is about 10° cooler than nearby Fresno. Longer view: Mediterranean pattern — nearly all rain lands November through March.
San Ramon, CA · Elev 486 ft · 37.78°N, 121.98°W · California · Forecast computed for these exact coordinates
Powered by NWS/NOAA guidance, multi-model forecasts and official environmental feeds · NOAA/NWS · EPA AirNow · MET Norway · global models
Updated: 9:49 AM