Wind
Calm at 7 PM Thursday; at its strongest 6 mph, 2 PM Thursday, and no gust reported.
- Now
- 0mph
- calm
- Strongest
- 6mph
- 2 PM Thursday
- Highest gust
- -
- none reported
How it is measured: Coriolis as geometry, Field Book FB-ENG-008
Airports/California/Castle Airport
Castle Airport, California
Medium airport in Merced County, California51°
90°/50°
Clear·
Feels like 51°·Calm 0 mph NNE
Now. Castle Airport is 51° and clear at 5 AM. The dew point is 40°, so the air feels dry and comfortable. The air is calm.
Today and tonight. It warms to about 88° by 4 PM. Tonight falls to about 56° by 5 AM, under a mostly clear sky. No rain is expected for the rest of the day. The sun is strong around midday: UV index 7, high. Unprotected skin can burn in under half an hour.
The week. The warmest day ahead is tomorrow, near 91°, and the coolest Tuesday, near 71°. Rain is possible Tuesday (37%) and Wednesday (32%).
The sky tonight. The sun sets at 6:24 PM. The Moon is a waxing crescent, 34% lit, and sets at 10:32 PM. The next full Moon is Sunday, Oct 25. After dark, 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
44Air quality
63%Humidity
4%Cloud
Now
5:00 AM
51feels51
now, clear
Today
Oct 16
9050
UV 7
Sat
Oct 17
9154
UV 6
Sun
Oct 18
8955
UV 6
Mon
Oct 19
7853
mostly clear day
Tue
Oct 20
7151
37%
Wed
Oct 21
7150
32%
Thu
Oct 22
7250
13%
51°
90°50°
91°54°
89°55°
78°53°
71°51°
71°50°
72°50°
As of 5:00 AM in Castle Airport, California.
Air quality
The air at Castle Airport
Index 44, good, led by fine particles. Read at 5 AM from its reporting area, Merced (CA), 7 miles off.
44Good
- Fine particles (PM2.5)44Good-
- Ozone13Good-
- Coarse particles (PM10)38Good-
The days ahead
Moderate each day through Today, led by ozone. Yesterday measured 57, moderate.
GoodModerate
- 57YesterdayOct 15
- 64TodayOct 16
Smoke, the next 43 hours
Little smoke near the ground through Sat 11 PM: the index from smoke stays at 6 or under.
Precipitation
What has fallen at Castle Airport
None in the last 3 days, to Fri 4 AM. 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 Castle Airport, the next 43 hours
Visibility stays 10 miles or more through Sat 11 PM.
F
Now, today, and the week
Weather instrument stations by state
Airfield
- Code
- MER
- ICAO
- KMER
- IATA
- MER
- Field elevation
- 191 ft
- Serves
- Merced
- Kind
- Medium airport
- Scheduled service
- No
- Its own instrument
- MER
- Wind now
- -
Runways
| Runway | Length | Width | Surface | Heading, true | Wind along it now | Crosswind now |
|---|---|---|---|---|---|---|
| 13 / 31 | 11,802 ft | 150 ft | Asphalt and concrete | 141° / 321° | - | - |
Measured here
What the airfield's own instrument measured, the last 24 hours
Every hour from Merced/Castle AF (MER), Castle Airport's own instrument, measure by measure, on the field's own clock.
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
Merced/Castle AF: every reading, the last 7 days, 30 days and the year, and how well it reports
What is measuring near here
The 6 instruments nearest Castle Airport, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.0 miles away.
measured now4 instruments
At an airfield/0.0 mi away/187 ft/4 ft below here
temp, wind, gust, visibility, precip, pressure
SR-99 Applegate RdCF171
Beside a road/3.3 mi away/154 ft/37 ft below here
temp, pavement temp, wind, visibility, precip
Amsterdam Road - Merced RiverMAJC1
At a river or reservoir gauge/6.2 mi away/182 ft/9 ft below here
temp, wind, gust, humidity, pressure
Merced 23 WSW93243
At a climate reference station/20.1 mi away/78 ft/113 ft below here
temp, humidity, wind, solar, precip
measured daily2 instruments
MercedMCEC1
At a cooperative observer's station/7.2 mi away/161 ft/30 ft below here
snowfall, snow depth, precip, high, low
Merced 1.2 NECA-ME-6
In a volunteer observer's own ground/7.4 mi away/211 ft/20 ft above 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 Castle Airport
The nearest places, each with its own forecast and the instruments nearest it.
- Atwatercity, 2 mi
- Wintoncommunity, 3 mi
- Franklincommunity, 4 mi
- McSwaincommunity, 4 mi
- Cresseycommunity, 6 mi
- Mercedcity, 7 mi
- University of California-Mercedcommunity, 8 mi
- Livingstoncity, 8 mi
- Ballicocommunity, 9 mi
- Bear Creekcommunity, 10 mi
- Tuttlecommunity, 11 mi
- Snellingcommunity, 12 mi
Airports near Castle Airport
- Merced Regional Macready FieldMCE, 7 mi
- Modesto City Co-Harry Sham FieldMOD, 27 mi
- Madera Municipal AirportMAE, 37 mi
- Columbia AirportO22, 46 mi
- Stockton Metropolitan AirportSCK, 51 mi
- Tracy Municipal AirportTCY, 52 mi
- Calaveras Co Maury Rasmussen FieldCPU, 53 mi
- Hollister Municipal AirportCVH, 57 mi