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WeatherLive › California › San Ramon

San Ramon, CA Weather (94583)

ZIP codes: 94583 · 94582 · 94570 · 94575
Today Hourly 10-Day Weekend Monthly Radar Air Quality Climate
Current WeatherSan Ramon · 9:10 AM PDT
30° | 14°
18°C
Feels like 18°
Mostly cloudy
WindSW 4 mph · Gusts 4 mph
Precip5% · –
Humidity66% · Dew point 12°
UV index8 Very high
Air Quality38 Good
Pressure29.94 inHg
Visibility6 mi
Sunrise / Sunset6:31 AM · 7:49 PM · 13h 18m

Weather map — San Ramon

Full radar →
Now
18°
16%
4 mph
10:00
22°
2%
4 mph
11:00
26°
1%
4 mph
12:00
28°
1%
5 mph
13:00
29°
1%
7 mph
14:00
30°
0%
7 mph
15:00
30°
0%
7 mph
16:00
29°
0%
8 mph
17:00
27°
1%
8 mph
18:00
25°
1%
6 mph
19:00
22°
1%
5 mph
20:00
20°
3%
4 mph
21:00
19°
4%
4 mph
22:00
18°
8%
4 mph
23:00
17°
23%
4 mph
00:00
17°
15%
3 mph
01:00
16°
22%
3 mph
02:00
17°
24%
3 mph
03:00
17°
24%
3 mph
04:00
16°
26%
3 mph
05:00
16°
28%
3 mph
06:00
16°
21%
3 mph
07:00
16°
24%
3 mph
08:00
17°
8%
3 mph

Today · Mon 8/24

High 30°
5% / –

Sunny. Winds W at 8 mph.

Tonight · Mon 8/24

Low 16°
4% / –

Sunny. Winds SW at 4 mph.

Tomorrow · Tue 8/25

30° | 16°
10% / –

Mostly cloudy. Winds SW at 8 mph.

7-day trend

San Ramon · temperature + precipitation

10-day forecast

Updated 9:10 AM

Details & indices

Wind
4 mph SW
Gusts 4 mph
Humidity
66%
Dew point 12°
Pressure
29.94 inHg
Rising
UV index
8 — Very high
High today
Air Quality
Good
AQI 38 · 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
Moderate

Sun & moon

Sunrise6:31 AM
Sunset7:49 PM
Length of day13h 18m
Moonrise6:10 PM
Moonset2:50 AM
Moon phase🌔 Waxing Gibbous · 88%
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)62°
🌤️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
Partly cloudy
19°
San Diego
Fog
20°
San Jose
Mostly cloudy
16° 🌤️
San Francisco
—
—
Fresno
Mostly cloudy
29°
Sacramento
Mostly cloudy
19°
Data sources · Monday, August 24
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: 9:10 AM
Weather in San Ramon
The 10-day span for San Ramon runs from a high near 31° on Wednesday down to 12° 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 running about 53° warmer than Santa Rosa. 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: 9:10 AM