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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 · 12:06 AM PDT
87° | 53°
54°F
Feels like 53°
Sunny
WindSW 3 mph · Gusts 14 mph
Precip7% · –
Humidity93% · Dew point 52°
UV index10 Very high
Air Quality54 Moderate
Pressure30.03 inHg
Visibility6 mi
Sunrise / Sunset6:26 AM · 7:57 PM · 13h 31m

Weather map — San Ramon

Full radar →
Now
55°
14%
4 mph
01:00
54°
17%
3 mph
02:00
54°
17%
3 mph
03:00
53°
18%
4 mph
04:00
53°
29%
3 mph
05:00
56°
32%
3 mph
06:00
56°
23%
4 mph
07:00
56°
16%
3 mph
08:00
58°
10%
3 mph
09:00
64°
5%
4 mph
10:00
70°
6%
4 mph
11:00
75°
4%
5 mph
12:00
79°
1%
5 mph
13:00
84°
1%
5 mph
14:00
87°
1%
6 mph
15:00
86°
1%
8 mph
16:00
84°
2%
6 mph
17:00
82°
2%
6 mph
18:00
76°
10%
6 mph
19:00
69°
8%
5 mph
20:00
64°
17%
5 mph
21:00
62°
24%
5 mph
22:00
60°
27%
4 mph
23:00
59°
29%
5 mph

Today · Tue 8/18

High 87°
7% / –

Sunny. Winds SW at 8 mph.

Overnight · Tue 8/18

Low 53°
17% / –

Sunny. Winds SW at 3 mph.

Tomorrow · Wed 8/19

90° | 58°
7% / –

Mostly cloudy. Winds SW at 8 mph.

7-day trend

San Ramon · temperature + precipitation

10-day forecast

Updated 12:06 AM

Details & indices

Wind
3 mph SW
Gusts 14 mph
Humidity
93%
Dew point 52°
Pressure
30.03 inHg
Rising
UV index
10 — Very high
High today
Air Quality
Moderate
AQI 54 · 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

Sunrise6:26 AM
Sunset7:57 PM
Length of day13h 31m
Moonrise12:54 PM
Moonset10:54 PM
Moon phase🌓 First Quarter · 32%
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
Great
Line-drying weather
Grilling
Great
Fire up the grill
Running
Fair
Lace up outside
Patio
Great
Dinner outdoors
Nearby places in {{REGION}}
🌤️
Los Angeles
—
— 🌤️
San Diego
—
—
San Jose
Sunny
60° 🌤️
San Francisco
—
— 🌤️
Fresno
—
— 🌤️
Sacramento
—
—
Data sources · Tuesday, August 18
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: 12:06 AM
Weather in San Ramon
The 10-day span for San Ramon runs from a high near 90° on Wednesday down to 53° overnight on Tuesday. 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 45° cooler than nearby Sacramento. 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: 12:06 AM