Big Basin State ParkBINC1
In a park or preserve/3.8 mi away/1,327 ft/165 ft below here
temp, wind, gust, humidity, pressure
Parks/California/Castle Rock State Park
Castle Rock State Park, California
State Park in San Mateo County, California65°
86°/52°
Clear·
Feels like 65°·Calm 1 mph N
Now. Castle Rock State Park is 65° and clear at 11 PM. The dew point is 47°, so the air feels dry and comfortable. The air is calm.
Today and tonight. Tonight falls to about 60° 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 91°, and the coolest Tuesday, near 63°. Rain is possible Tuesday (43%).
The sky now. The Moon is a waxing crescent, 27% lit, and stays below the horizon until dawn. The next full Moon is Sunday, Oct 25. Look for Saturn, bright in the south-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 17 minutes long, 3 minutes shorter than yesterday.
0UV Low
36Air quality
53%Humidity
1%Cloud
Now
11:00 PM
65feels65
now, clear
Today
Oct 15
8652
UV 7
Fri
Oct 16
9160
UV 7
Sat
Oct 17
8963
UV 6
Sun
Oct 18
7555
UV 6
Mon
Oct 19
6449
29%
Tue
Oct 20
6349
43%
Wed
Oct 21
6647
27%
65°
86°52°
91°60°
89°63°
75°55°
64°49°
63°49°
66°47°
As of 11:00 PM in Castle Rock State Park, California.
Air quality
The air at Castle Rock State Park
Index 36, good, led by fine particles. Read at 11 PM from its reporting area, San Lorenzo Valley (CA), 10 miles off.
36Good
- Fine particles (PM2.5)36Good11.6 mi
- Ozone-36 ppb9.4 mi
- Nitrogen dioxide14Good15.8 ppb18.4 mi
- Carbon monoxide-0.4 ppm18.4 mi
The days ahead
Highest 52, moderate, today, led by ozone. Yesterday measured 36, good.
GoodModerate
- 36YesterdayOct 14
- 52TodayOct 15
- GoodFriOct 16
- GoodSatOct 17
- GoodSunOct 18
Smoke, the next 43 hours
Little smoke near the ground through Sat 5 PM: the index from smoke stays at 11 or under.
Precipitation
What has fallen at Castle Rock State Park
None in the last 3 days, to Thu 10 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 Castle Rock State Park, the next 43 hours
Visibility stays 10 miles or more through Sat 5 PM.
F
Now, today, and the week
Weather instrument stations by state
Park
- Designation
- State Park
- Area
- 8.45 sq mi
- Height at its point
- 1,492 ft
- County
- San Mateo County
- State
- California
- Latitude
- 37.2224° N
- Longitude
- 122.1542° W
What is measuring near here
The 5 instruments nearest Castle Rock State Park, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 2.0 miles away.
measured now3 instruments
Citizen station CW1792CW1792
In a volunteer observer's own ground/8.1 mi away/374 ft/1,118 ft below here
temp, humidity, wind, precip, pressure
At an airfield/13.9 mi away/39 ft/1,453 ft below here
temp, wind, gust, visibility, precip, pressure
measured daily2 instruments
Boulder Creek 4.1 NCA-SZ-36
In a volunteer observer's own ground/2.0 mi away/984 ft/508 ft below here
precip, snowfall, snow depth
In a park or preserve/6.5 mi away/2,253 ft/761 ft above 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.
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Near Castle Rock State Park
The nearest places, each with its own forecast and the instruments nearest it.
- Boulder Creekcommunity, 6 mi
- Saratogacity, 8 mi
- Brookdalecommunity, 9 mi
- Loma Marcommunity, 9 mi
- La Hondacommunity, 9 mi
- Cupertinocity, 9 mi
- Loyolacommunity, 9 mi
- Monte Serenocity, 9 mi
- Lompicocommunity, 10 mi
- Los Altos Hillstown, 10 mi
- Lexington Hillscommunity, 10 mi
- Los Gatostown, 11 mi