Temperature
62 F at 7 PM; 82 F at its warmest, 3 PM, and 45 F at its coolest, 5 AM.
- Now
- 62F
- 7 PM
- Highest
- 82F
- 3 PM
- Lowest
- 45F
- 5 AM
How it is measured: Stevenson screen and siting, Field Book FB-INS-009
Airports/California/Napa County Airport
Napa County Airport, California
Small airport in Napa County, California65°
85°/49°
Clear·
Feels like 65°·Calm 0 mph NNW
Now. Napa County Airport is 65° and clear at 8 PM. The dew point is 42°, so the air feels dry and comfortable. The air is calm.
Today and tonight. Tonight falls to about 55° 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 85°, and the coolest Tuesday, near 63°. The days ahead look dry.
The sky now. The Moon is a waxing crescent, 26% lit, and sets at 9:42 PM. The next full Moon is Sunday, Oct 25. Look for Saturn, bright in the east-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 14 minutes long, 2 minutes shorter than yesterday.
0UV Low
49Air quality
48%Humidity
0%Cloud
Now
8:00 PM
65feels65
now, clear
Today
Oct 15
8549
UV 6
Fri
Oct 16
8554
UV 6
Sat
Oct 17
8353
clear day
Sun
Oct 18
7149
16mph
Mon
Oct 19
6444
22%
17mph
Tue
Oct 20
6344
26%
Wed
Oct 21
6644
22%
65°
85°49°
85°54°
83°53°
71°49°
64°44°
63°44°
66°44°
As of 8:00 PM in Napa County Airport, California.
Air quality
The air at Napa County Airport
Index 49, good, led by fine particles. Read at 8 PM from its reporting area, Napa (CA), 8 miles off.
49Good
- Fine particles (PM2.5)49Good-
- Ozone44Good-
The days ahead
Good each day through Tue Oct 20, led by ozone. Yesterday measured 40, good.
GoodModerate
- 40YesterdayOct 14
- 38TodayOct 15
- 39FriOct 16
- GoodSatOct 17
- GoodSunOct 18
- GoodMonOct 19
- GoodTueOct 20
Smoke, the next 46 hours
Little smoke near the ground through Sat 5 PM: the index from smoke stays at 17 or under.
Precipitation
What has fallen at Napa County Airport
None in the last 3 days, to Thu 7 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 Napa County Airport, the next 46 hours
Visibility stays 10 miles or more through Sat 5 PM.
F
Now, today, and the week
Weather instrument stations by state
Airfield
- Code
- APC
- ICAO
- KAPC
- IATA
- APC
- Field elevation
- 35 ft
- Serves
- Napa
- Kind
- Small airport
- Scheduled service
- No
- Its own instrument
- APC
- Wind now
- Calm, read 15 Oct, 19:54
Runways
| Runway | Length | Width | Surface | Heading, true | Wind along it now | Crosswind now |
|---|---|---|---|---|---|---|
| 01L / 19R | 5,930 ft | 150 ft | Asphalt | 21° / 201° | Calm | Calm |
| 01R / 19L unlit | 2,510 ft | 75 ft | Asphalt | 21° / 201° | Calm | Calm |
| 6 / 24 | 5,008 ft | 150 ft | Concrete | 77° / 257° | Calm | Calm |
Measured here
What the airfield's own instrument measured, the last 24 hours
Every hour from Napa County (APC), Napa County Airport's own instrument, measure by measure, on the field's own clock.
Humidity and dew point
A dew point of 42 F, the air 48% saturated; the humidity ran from 25% at 4 PM to 79% at 5 AM.
- Dew point now
- 42F
- 7 PM
- Humidity now
- 48%
- Humidity, range
- 25 to 79%
How it is measured: Humidity variables, Field Book FB-WAT-002
Wind
Calm at 8 PM; at its strongest 9 mph, 2 PM, and no gust reported.
- Now
- 0mph
- calm
- Strongest
- 9mph
- 2 PM
- Highest gust
- -
- none reported
How it is measured: Coriolis as geometry, Field Book FB-ENG-008
Pressure
30.06 inHg at 8 PM, steady over 3 hours; 0.05 inHg lower than a day before.
- Now
- 30.06inHg
- 8 PM
- 3 hours
- +0.02inHg
- steady
- 24 hours
- -0.05inHg
How it is measured: Hydrostatic balance, Field Book FB-ENG-003
Visibility
10 miles or more every hour.
- Now
- 10+mi
- Lowest
- 10+mi
- Hours under a mile
- 0
How it is measured: Fog types, Field Book FB-WAT-020
Precipitation
None measured in the gauge in the last 24 hours.
- Last 24 hours
- 0.00in
- Wettest hour
- -
- Hours with some
- 0
How it is measured: ASOS, Field Book FB-INS-002
Napa County: every reading, the last 7 days, 30 days and the year, and how well it reports
What is measuring near here
The 5 instruments nearest Napa County Airport, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.4 miles away.
measured now3 instruments
Napa CountyAPC
At an airfield/0.4 mi away/26 ft/9 ft below here
temp, wind, gust, visibility, precip, pressure
Boony Doon FireBONC1
At a river or reservoir gauge/11.6 mi away/69 ft/34 ft above here
temp, wind, gust, humidity, pressure
SR-12 - SR-160CF105
Beside a road/33.1 mi away/-6 ft/41 ft below here
temp, pavement temp, wind, visibility, precip
measured daily2 instruments
Napa State HospitalNSHC1
At a cooperative observer's station/4.5 mi away/82 ft/47 ft above here
snowfall, snow depth, precip, high, low
Napa 1.0 SSECA-NP-13
In a volunteer observer's own ground/4.9 mi away/26 ft/9 ft below here
precip, snowfall, snow depth
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 Napa County Airport
The nearest places, each with its own forecast and the instruments nearest it.
- American Canyoncity, 4 mi
- Napacity, 7 mi
- Green Valleycommunity, 7 mi
- Vallejocity, 7 mi
- Silverado Resortcommunity, 10 mi
- Sonomacity, 11 mi
- Crockettcommunity, 12 mi
- Beniciacity, 12 mi
- Temeleccommunity, 12 mi
- Port Costacommunity, 13 mi
- El Veranocommunity, 13 mi
- Rodeocommunity, 13 mi
Airports near Napa County Airport
- Marin County Airport - Gnoss FieldDVO, 16 mi
- Petaluma Municipal AirportO69, 18 mi
- Travis Air Force BaseSUU, 20 mi
- Buchanan FieldCCR, 20 mi
- Nut Tree AirportVCB, 21 mi
- Yolo County Davis Woodland Winters AirportDWA, 34 mi
- Oakland San Francisco Bay AirportOAK, 34 mi
- University AirportEDU, 35 mi