AltamontAATC1
At a river or reservoir gauge/1.2 mi away/1,450 ft/154 ft below here
temp, wind, gust, humidity, pressure
Mountain passes/California/Patterson Pass
Patterson Pass, California
Mountain pass in Alameda County, California, at 1,604 ft73°
81°/54°
Clear·
Feels like 73°·Light air 3 mph SW
Now. Patterson Pass is 73° and clear at 10 PM. The dew point is 35°, so the air feels dry and comfortable. Light air from the southwest at 3 mph.
Today and tonight. Tonight falls to about 59° by 7 AM, under a mostly clear sky. No rain is expected for the rest of the day.
The week. The warmest day ahead is tomorrow, near 84°, and the coolest Tuesday, near 61°. Rain is possible Tuesday (37%). The windiest day is Monday, with wind to 38 mph.
The sky now. The Moon is a waxing crescent, 26% lit, and stays below the horizon until dawn. The next full Moon is Sunday, Oct 25. Look for Saturn, bright in the southeast. A planet shines with a steady light where the stars around it twinkle. The Orionids meteor shower is active, peaking around Oct 21: at its peak, up to about 20 meteors an hour can be seen from a dark site. The sky is forecast to stay clear: a good night to look up. The day is 11 hours 15 minutes long, 2 minutes shorter than yesterday.
0UV Low
42Air quality
32%Humidity
0%Cloud
Now
10:00 PM
73feels73
now, clear
Today
Oct 15
8154
UV 7
Fri
Oct 16
8459
UV 7
Sat
Oct 17
8463
UV 6
Sun
Oct 18
7758
24mph
UV 6
Mon
Oct 19
6348
20%
38mph
Tue
Oct 20
6147
37%
16mph
Wed
Oct 21
6347
27%
73°
81°54°
84°59°
84°63°
77°58°
63°48°
61°47°
63°47°
As of 10:00 PM in Patterson Pass, California.
Air quality
The air at Patterson Pass
Index 42, good, led by fine particles. Read at 9 PM from its reporting area, Livermore (CA), 8 miles off.
42Good
- Fine particles (PM2.5)42Good-
- Ozone28Good35 ppb21.9 mi
- Nitrogen dioxide5Good5.5 ppb21.9 mi
- Sulfur dioxide1Good1.3 ppb21.9 mi
- Carbon monoxide-0.4 ppm21.9 mi
The days ahead
Highest moderate, Sat Oct 17, led by ozone. Yesterday measured 39, good.
GoodModerate
- 39YesterdayOct 14
- 50TodayOct 15
- 50FriOct 16
- ModerateSatOct 17
- GoodSunOct 18
- GoodMonOct 19
- GoodTueOct 20
Smoke, the next 44 hours
Little smoke near the ground through Sat 5 PM: the index from smoke stays at 11 or under.
Precipitation
What has fallen at Patterson Pass
None in the last 3 days, to Thu 8 PM. Measured by radar and rain gauges, as water.
- Last 24 hours
- 0.00in
- Last 3 days
- 0.00in
Visibility
How far you can see at Patterson Pass, the next 44 hours
Visibility stays 10 miles or more through Sat 5 PM.
F
Now, today, and the week
Weather instrument stations by state
Mountain pass
- Height
- 1,604 ft
- County
- Alameda County
- State
- California
- Latitude
- 37.6869° N
- Longitude
- 121.6299° W
What is measuring near here
The 6 instruments nearest Patterson Pass, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 1.2 miles away.
measured now4 instruments
I-580 - I-205CF133
Beside a road/4.9 mi away/301 ft/1,303 ft below here
temp, pavement temp, wind, visibility, precip
ByronC83
At an airfield/9.7 mi away/52 ft/1,552 ft below here
temp, wind, gust, visibility, precip, pressure
Citizen station FW2692FW2692
In a volunteer observer's own ground/10.4 mi away/149 ft/1,455 ft below here
temp, humidity, wind, precip, pressure
measured daily2 instruments
Livermore 1.4 SSECA-AL-21
In a volunteer observer's own ground/6.9 mi away/538 ft/1,066 ft below here
precip, snowfall, snow depth
LivermoreLIVC1
At a cooperative observer's station/7.6 mi away/496 ft/1,108 ft below here
snowfall, snow depth, precip, high, low
What the snow tracker reads here
Every instrument in this state
-
Snow on the ground
Elsewhere in California
33 places, each with its own forecast and its own instruments.
Big Bear Mountainski areaBishopcityBridgeporttownChina Peakski areaDodge Ridgeski areaDonner PassfeatureFresnocityHeavenlysurveyed ski areaHomewoodski areaJune Mountainski areaKirkwoodsurveyed ski areaLos AngelescityMammoth LakestownMammoth Mountainsurveyed ski areaMount ShastafeatureMount Shasta CitycityMount Shasta Ski Parkski areaMount WhitneyfeatureMountain Highski areaNorthstarsurveyed ski areaPalisades Tahoesurveyed ski areaReddingcitySacramentocitySan DiegocitySan FranciscocitySierra NevadafeatureSierra-at-Tahoeski areaSnow Valleyski areaSouth Lake TahoecitySugar Bowlski areaSusanvillecityTruckeetownYosemitefeature
Near Patterson Pass
The nearest places, each with its own forecast and the instruments nearest it.
- Livermorecity, 7 mi
- Mountain Housecommunity, 7 mi
- Tracycity, 11 mi
- Byroncommunity, 13 mi
- Pleasantoncity, 14 mi
- Dublincity, 14 mi
- Discovery Baycommunity, 15 mi
- Sunolcommunity, 16 mi
- Camino Tassajaracommunity, 16 mi
- Blackhawkcommunity, 17 mi
- San Ramoncity, 17 mi
- Brentwoodcity, 18 mi
Mountain passes near Patterson Pass
- Altamont Pass4 mi
- Mission Pass18 mi
- Haywards Pass19 mi
- Nortonville Pass23 mi
- Kirker Pass25 mi
- Summit Pass34 mi
- Days Pass35 mi
- Cape Horn Pass37 mi