Observed 4:50 AM PDT at KLVK

San Ramon, CA weather

Clear and 45°7°.

Mostly agree

Now 45°7°

Clear

Wind: Calm; Up to 5 mph8 km/h through 5 PM
Dew point: 37°3°; Comfortable · up to 46°8° by 2 PM
UV index: 0Low; Moderate 11 AM–4 PM · peak 4
Air today: 37Good; EPA forecast · Ozone
Pressure: 30.03 inHg1017 hPa; Steady over the last 3 h

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

12°7° cooler than this time yesterday (57°14° then, 45°7° now)

Good hours for

Above 60°16° today by noon
High 69°21° today at 3 PM
Below 60°16° tonight after 8 PM

This morningUp to 59°15° by 11 AM · Clear
This afternoonUp to 69°21° by 3 PM · Clear
TonightDown to 50°10° by 3 AM · Clear
Tomorrow morningUp to 62°17° by 11 AM · Partly cloudy
Tomorrow afternoonUp to 72°22° by 3 PM · Mostly cloudy
Tomorrow nightDown to 50°10° by 4 AM · Partly cloudy

Hourly forecast, next 48 hours, in the place's local time
Hour	Conditions	Temperature	Feels like	Precipitation	Wind	Humidity	Cloud cover	UV index
Sat 5a	Clear	47°8° (likely 47°8° to 53°12°)	47°8°	0%	2 mph3 km/h from SE, gusts 6 mph10 km/h	59%	0%	0
Sat 6a	Clear	48°9° (likely 46°8° to 53°12°)	48°9°	0%	2 mph3 km/h from SE, gusts 6 mph9 km/h	60%	0%	0
Sat 7a	Sunny	47°8° (likely 46°8° to 52°11°)	47°8°	0%	2 mph3 km/h from ESE, gusts 5 mph7 km/h	61%	0%	0
Sat 8a	Sunny	47°8° (likely 47°8° to 52°11°)	47°8°	0%	2 mph3 km/h from E, gusts 5 mph7 km/h	61%	0%	0
Sat 9a	Sunny	52°11° (likely 51°11° to 57°14°)	52°11°	0%	2 mph3 km/h from E, gusts 9 mph14 km/h	60%	0%	0
Sat 10a	Sunny	56°13° (likely 55°13° to 60°16°)	56°13°	0%	3 mph5 km/h from NE, gusts 9 mph15 km/h	63%	0%	1
Sat 11a	Sunny	59°15° (likely 59°15° to 63°17°)	59°15°	0%	5 mph8 km/h from NE, gusts 11 mph17 km/h	60%	0%	3
Sat 12p	Sunny	64°18° (likely 63°17° to 66°19°)	64°18°	0%	3 mph5 km/h from NNE, gusts 11 mph18 km/h	50%	0%	4
Sat 1p	Sunny	66°19° (likely 66°19° to 68°20°)	66°19°	0%	3 mph5 km/h from NNE, gusts 9 mph14 km/h	47%	0%	4
Sat 2p	Sunny	68°20° (likely 67°19° to 70°21°)	68°20°	0%	3 mph5 km/h from NNE, gusts 8 mph13 km/h	45%	0%	4
Sat 3p	Sunny	69°21° (likely 68°20° to 71°22°)	69°21°	0%	3 mph5 km/h from NNE, gusts 8 mph12 km/h	41%	0%	3
Sat 4p	Sunny	69°21° (likely 68°20° to 71°22°)	69°21°	0%	2 mph3 km/h from NNE, gusts 7 mph11 km/h	41%	0%	2
Sat 5p	Sunny	69°21° (likely 67°19° to 70°21°)	69°21°	0%	2 mph3 km/h from NW, gusts 6 mph10 km/h	41%	0%	2
Sat 6p	Clear	66°19° (likely 63°17° to 66°19°)	67°19°	0%	0 mph0 km/h, gusts 8 mph12 km/h	46%	0%	1
Sat 7p	Clear	61°16° (likely 59°15° to 62°17°)	61°16°	0%	0 mph0 km/h, gusts 6 mph9 km/h	55%	0%	0
Sat 8p	Clear	58°14° (likely 55°13° to 59°15°)	58°14°	0%	0 mph0 km/h, gusts 4 mph7 km/h	61%	0%	0
Sat 9p	Clear	56°13° (likely 53°12° to 58°14°)	56°13°	0%	0 mph0 km/h, gusts 3 mph4 km/h	64%	0%	0
Sat 10p	Clear	55°13° (likely 52°11° to 57°14°)	55°13°	0%	0 mph0 km/h, gusts 2 mph4 km/h	67%	0%	0
Sat 11p	Clear	54°12° (likely 51°11° to 56°13°)	54°12°	0%	0 mph0 km/h, gusts 3 mph4 km/h	69%	7%	0
Sun 12a	Clear	53°12° (likely 50°10° to 55°13°)	53°12°	0%	0 mph0 km/h, gusts 2 mph4 km/h	68%	0%	0
Sun 1a	Clear	52°11° (likely 49°9° to 55°13°)	52°11°	0%	0 mph0 km/h, gusts 3 mph5 km/h	69%	0%	0
Sun 2a	Clear	52°11° (likely 49°9° to 54°12°)	52°11°	0%	0 mph0 km/h, gusts 2 mph3 km/h	70%	0%	0
Sun 3a	Clear	50°10° (likely 49°9° to 54°12°)	50°10°	0%	0 mph0 km/h, gusts 2 mph3 km/h	72%	28%	0
Sun 4a	Mostly clear	50°10° (likely 49°9° to 54°12°)	50°10°	0%	0 mph0 km/h, gusts 3 mph4 km/h	72%	44%	0
Sun 5a	Mostly clear	50°10° (likely 49°9° to 54°12°)	50°10°	0%	0 mph0 km/h, gusts 3 mph5 km/h	72%	55%	0
Sun 6a	Mostly clear	48°9° (likely 48°9° to 53°12°)	48°9°	0%	0 mph0 km/h, gusts 3 mph4 km/h	73%	25%	0
Sun 7a	Mostly sunny	48°9° (likely 48°9° to 52°11°)	48°9°	0%	0 mph0 km/h, gusts 2 mph3 km/h	76%	59%	0
Sun 8a	Partly sunny	48°9° (likely 48°9° to 53°12°)	48°9°	0%	0 mph0 km/h, gusts 2 mph4 km/h	76%	68%	0
Sun 9a	Partly sunny	52°11° (likely 52°11° to 56°13°)	52°11°	0%	0 mph0 km/h, gusts 4 mph6 km/h	74%	75%	1
Sun 10a	Partly sunny	58°14° (likely 57°14° to 62°17°)	58°14°	0%	0 mph0 km/h, gusts 3 mph5 km/h	73%	66%	2
Sun 11a	Mostly sunny	62°17° (likely 61°16° to 67°19°)	62°17°	0%	0 mph0 km/h, gusts 4 mph6 km/h	65%	56%	3
Sun 12p	Mostly sunny	67°19° (likely 65°18° to 69°21°)	67°19°	0%	0 mph0 km/h, gusts 5 mph7 km/h	54%	57%	4
Sun 1p	Mostly sunny	69°21° (likely 67°19° to 71°22°)	69°21°	0%	0 mph0 km/h, gusts 6 mph10 km/h	50%	69%	4
Sun 2p	Mostly sunny	71°22° (likely 69°21° to 72°22°)	71°22°	0%	2 mph3 km/h from W, gusts 7 mph11 km/h	47%	80%	4
Sun 3p	Cloudy	72°22° (likely 68°20° to 72°22°)	72°22°	0%	2 mph3 km/h from W, gusts 9 mph14 km/h	46%	81%	4
Sun 4p	Cloudy	71°22° (likely 65°18° to 71°22°)	71°22°	0%	2 mph3 km/h from W, gusts 11 mph17 km/h	46%	79%	3
Sun 5p	Cloudy	70°21° (likely 61°16° to 70°21°)	71°22°	0%	2 mph3 km/h from W, gusts 11 mph18 km/h	46%	84%	1
Sun 6p	Cloudy	68°20° (likely 57°14° to 68°20°)	68°20°	0%	2 mph3 km/h from W, gusts 11 mph17 km/h	53%	84%	0
Sun 7p	Cloudy	63°17° (likely 54°12° to 63°17°)	63°17°	0%	2 mph3 km/h from W, gusts 11 mph18 km/h	62%	78%	0
Sun 8p	Mostly clear	58°14° (likely 53°12° to 58°14°)	58°14°	0%	0 mph0 km/h, gusts 11 mph17 km/h	70%	67%	0
Sun 9p	Mostly clear	56°13° (likely 52°11° to 56°13°)	56°13°	0%	0 mph0 km/h, gusts 10 mph16 km/h	76%	55%	0
Sun 10p	Mostly clear	54°12° (likely 50°10° to 55°13°)	54°12°	0%	0 mph0 km/h, gusts 8 mph13 km/h	79%	24%	0
Sun 11p	Mostly clear	54°12° (likely 49°9° to 54°12°)	54°12°	0%	1 mph2 km/h from WSW, gusts 8 mph13 km/h	81%	28%	0
Mon 12a	Mostly clear	53°12° (likely 49°9° to 55°13°)	53°12°	0%	1 mph2 km/h from WSW, gusts 5 mph8 km/h	83%	39%	0
Mon 1a	Mostly clear	52°11° (likely 49°9° to 54°12°)	52°11°	0%	1 mph2 km/h from WSW, gusts 6 mph9 km/h	85%	28%	0
Mon 2a	Partly cloudy	52°11° (likely 49°9° to 53°12°)	52°11°	0%	1 mph2 km/h from SW, gusts 6 mph9 km/h	87%	40%	0
Mon 3a	Partly cloudy	51°11° (likely 49°9° to 52°11°)	51°11°	0%	1 mph2 km/h from SW, gusts 6 mph10 km/h	89%	46%	0
Mon 4a	Partly cloudy	50°10° (likely 50°10° to 52°11°)	50°10°	0%	1 mph2 km/h from SW, gusts 6 mph10 km/h	91%	65%	0

Days ahead

Shaded: typical range for these dates (1991–2020)

Today, Oct 24. Sunny. High 69°21°, low 46°8°. Typical 74°23° / 48°9°. Dry. Mostly agree. Best day outdoors this week.
1. Morning
  6 AM–noon
  Sunny, 47°8°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 69°21°
  Dry
3. Evening
  6 PM–midnight
  Clear, 58°14°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 50°10°
  Dry
Official NWS forecast
Today: Sunny, with a high near 69. East northeast wind around 5 mph.
Tonight: Clear, with a low around 46. Southeast wind around 2 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
Best day outdoors this week: the one dry, mild day the forecasts agree on (high 69°21°).
High, likely
68°20°–71°22°
Low, likely
46°8°–51°11°
Typical high / low
74°23° / 48°9°
Wind
8 mph13 km/h, gusts 18 mph28 km/h
UV peak
5
Tomorrow, Oct 25. Cloudy. High 72°22°, low 47°8°. Typical 74°23° / 48°9°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Partly sunny, 48°9°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 72°22°
  Dry
3. Evening
  6 PM–midnight
  Mostly clear, 58°14°
  Dry
4. Overnight
  midnight–6 AM
  Partly cloudy, 50°10°
  Dry
Official NWS forecast
Day: Mostly sunny, with a high near 72. North wind around 2 mph.
Night: Patchy fog after 5am. Partly cloudy, with a low around 47. Southwest wind around 2 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
69°21°–72°22°
Low, likely
47°8°–52°11°
Typical high / low
74°23° / 48°9°
Wind
10 mph15 km/h, gusts 17 mph27 km/h
UV peak
4
Monday, Oct 26. Fog. High 66°19°, low 44°7°. Typical 74°23° / 47°8°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Cloudy, 51°11°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 66°19°
  Dry
3. Evening
  6 PM–midnight
  Clear, 53°12°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 48°9°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Patchy fog before 10am. Mostly sunny, with a high near 66.
Night: Areas of fog after 2am. Mostly clear, with a low around 44.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
64°18°–66°19°
Low, likely
44°7°–51°11°
Typical high / low
74°23° / 47°8°
Wind
12 mph19 km/h, gusts 19 mph31 km/h
UV peak
5
Tuesday, Oct 27. Fog. High 66°19°, low 45°7°. Typical 73°23° / 47°8°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 47°8°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 67°19°
  Dry
3. Evening
  6 PM–midnight
  Partly cloudy, 54°12°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 46°8°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Areas of fog before 10am. Mostly sunny, with a high near 66.
Night: Partly cloudy, with a low around 45.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
64°18°–67°19°
Low, likely
44°7°–48°9°
Typical high / low
73°23° / 47°8°
Wind
10 mph16 km/h
UV peak
5
Wednesday, Oct 28. Cloudy. High 65°18°, low 46°8°. Typical 73°23° / 47°8°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Mostly sunny, 46°8°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 66°19°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 55°13°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 52°11°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 65.
Night: Mostly cloudy, with a low around 46.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
64°18°–68°20°
Low, likely
42°6°–49°9°
Typical high / low
73°23° / 47°8°
Wind
7 mph11 km/h
UV peak
4
Thursday, Oct 29. Cloudy. High 63°17°, low 46°8°. Typical 72°22° / 47°8°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 52°11°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 62°17°
  Dry
3. Evening
  6 PM–midnight
  Clear, 53°12°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 45°7°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Areas of fog before 11am, then a slight chance of rain. Partly sunny, with a high near 63.
Night: A chance of rain. Partly cloudy, with a low around 46.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
61°16°–64°18°
Low, likely
46°8°–51°11°
Typical high / low
72°22° / 47°8°
Wind
11 mph17 km/h, gusts 17 mph27 km/h
UV peak
4
Friday, Oct 30. Rain. High 63°17°, low 44°7°. Typical 72°22° / 46°8°. Rain 0.01 in0.3 mm, 30% chance. Mostly agree.
1. Morning
  6 AM–noon
  Mostly sunny, 46°8°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 61°16°
  20% chance
3. Evening
  6 PM–midnight
  Cloudy, 51°11°
  20% chance
4. Overnight
  midnight–6 AM
  Cloudy, 44°7°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: A chance of rain and patchy fog before 7am, then areas of fog and a chance of rain between 7am and 8am, then a chance of rain and patchy fog. Partly sunny, with a high near 63.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
58°14°–63°17°
Low, likely
41°5°–46°8°
Typical high / low
72°22° / 46°8°
Wind
9 mph14 km/h, gusts 20 mph32 km/h
UV peak
4
Saturday, Oct 31. Cloudy. High 61°16°, low 43°6°. Typical 71°22° / 46°8°. Rain 0.02 in0.5 mm, 20% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Mostly sunny, 45°7°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 63°17°
  20% chance
3. Evening
  6 PM–midnight
  Clear, 51°10°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 42°6°
  Dry
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
58°14°–68°20°
Low, likely
35°2°–47°8°
Typical high / low
71°22° / 46°8°
Wind
7 mph11 km/h, gusts 17 mph27 km/h
UV peak
4
Sunday, Nov 1. Sunny. High 63°17°, low 42°6°. Typical 71°22° / 46°8°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 44°7°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 64°18°
  Dry
3. Evening
  6 PM–midnight
  Clear, 52°11°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 47°8°
  Dry
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
59°15°–69°21°
Low, likely
37°3°–47°8°
Typical high / low
71°22° / 46°8°
Wind
7 mph11 km/h, gusts 18 mph29 km/h
UV peak
4
Monday, Nov 2. Cloudy. High 64°18°, low 48°9°. Typical 70°21° / 46°8°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 51°11°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 65°18°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 56°14°
  Dry
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
58°14°–71°22°
Low, likely
40°4°–57°14°
Typical high / low
70°21° / 46°8°
Wind
8 mph12 km/h, gusts 19 mph31 km/h
UV peak
3

10 days15 days30 days

The outlook

Today
Dry, high 69°, low 46°.
Tomorrow
Dry, high 72°, low 47°, warming up.
Monday
Dry, high 66°, low 44°, cooling off.
Rest of week
Mostly dry, highs 61–66°.

Want the meteorologists’ reasoning? Read the NWS forecast discussion (MTR) (opens in a new tab)

What changed since yesterday

No meaningful changes from yesterday’s forecast.

Radar

Radar data: NOAA MRMS, rendered by forecast.blue

Radar loads when scrolled into view

Full-screen radar

Rivers

NOAA river gauges within 25 mi

Alamo Canal near Pleasanton

4.9 mi

Below flood stage

Level: 2.0 ft
Flow: 7 cfs

Forecast peak 1.6 ft Sat 5 AM

Reading from Sat 2:45 AM · NWS gauge page

San Ramon Creek at San Ramon

3.5 mi

Level: 2.6 ft
Flow: 1 cfs

Reading from Sat 2:45 AM · NWS gauge page

Line J1 below Dublin Blvd

4.2 mi

Level: 0.4 ft

Reading from Sat 3:15 AM · NWS gauge page

Dublin Creek - Interstate 680

4.4 mi

Level: 0.3 ft

Reading from Sat 3:30 AM · NWS gauge page

For your home

What this week’s weather means for heating, cooling, pipes and fresh air.

Heating this week

About 53% less heating than a typical week.

This week 16Typical 34

Heating degree days, base 65°F

Heat-pump hours, next 7 days

h below 47°F: 2
h below 17°F: 0
h below 5°F: 0

47, 17 and 5°F are the test points heat pumps are rated at.

Comfort

Dry air outside (dew point 37°F).

Open the windows?

Today, 12:00 PM–7:00 PM

Good stretch to open the windows.

Is this typical?

LIVERMORE · official normals 1991–2020 · records 1903–2026

Oct 24, today vs a typical year

Today’s expected high is 5°3° colder than typical.

Last 7 days vs normal

On average 2°1° colder than normal (daily mean temperature).

+2°+1°SunOct 18
−1°MonOct 19
−4°−2°TueOct 20
−3°−2°WedOct 21
−4°−2°ThuOct 22
±0°FriOct 23
—SatOct 24

San Ramon weather by month: normals, records, snow and freeze dates

Sun & moon

Sun

Daylight: 10 h 53 min; Losing 2 min 16 s a day; shortest Dec 21, 1 h 20 min less
Golden hour: 5:41–6:34 PM; Morning 7:08–8:01 AM
Blue hour: 6:34–6:44 PM; Morning 6:58–7:08 AM; first light 6:58 AM

Stars tonight? Fair

Clear 5:15–6:58 AM, but the moon is 97% lit and up.

Moon

Waxing gibbous

96% lit · growing

Today: sets 5:46 AM · rises 5:17 PM
Full moon: Oct 25
New moon: Nov 8

Looking north from San Ramon. The highest point on the skyline is about 3,700 ft, 8 mi away.Skyline from USGS elevation data, heights drawn up to 5× taller. Sky, sun and moon as they are now.