La Honda RAWSLAHC1
A remote fire weather station/4.1 mi away/902 ft/430 ft above here
temp, wind, gust, humidity, pressure
Parks/California/Portola Redwoods State Park
Portola Redwoods State Park, California
State Park in San Mateo County, California* WHAT...Hot conditions with maximum temperatures in the mid-90s to near 105. Mild minimum temperatures and weak onshore flow will limit overnight relief. * WHERE...The East Bay and San Francisco Bay Shoreline, North Bay Interior Mountains and Valleys, The Santa Clara Valley and Eastern Hills, The Santa Cruz Mountains, Interior Monterey County and the Santa Lucia Range, Most of San Benito County and the Cholame Hills in Southeast Monterey County, and Southern Salinas Valley/Arroyo Seco and Lake San Antonio. * WHEN...Until 10 PM PDT Thursday. * IMPACTS...For the Heat Advisory, this level of heat affects anyone without effective cooling and/or adequate hydration. Impacts likely in some health systems, heat-sensitive industries and infrastructure.
Hydration is a critical piece to surviving the heat. Drink water, and if possible, take water to those who are vulnerable. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to the early morning or evening. Take action when you experience symptoms of heat exhaustion and/or heat stroke. Beat the heat and check the backseat! Do not leave young children or pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes.
66°
91°/63°
Mostly clear·
Feels like 66°·Calm 0 mph WNW
Alert. A Heat Advisory is in force for Portola Redwoods State Park until 10 PM Thursday. Read the alert in full, and see what it means in the Field Book.
Now. Portola Redwoods State Park is 66° and mostly clear at 1 AM. The dew point is 59°, so the air feels a little humid. The air is calm.
Today and tonight. It warms to about 88° by 1 PM. Tonight falls to about 66° by 4 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 88°, and the coolest Sunday, near 69°. The days ahead look dry.
The sky tonight. The sun sets at 6:45 PM. The Moon is a waning crescent, 15% lit, and rises at 4:03 AM after midnight. The next new Moon is Saturday, Oct 10. After dark, look for Saturn, bright in the east-southeast. A planet shines with a steady light where the stars around it twinkle. The sky is forecast to stay clear: a good night to look up. The day is 11 hours 37 minutes long, 3 minutes shorter than yesterday.
0UV Low
29Air quality
82%Humidity
21%Cloud
Now
1:00 AM
66feels66
now, mostly clear
Today
Oct 6
9163
UV 7
Wed
Oct 7
8862
UV 7
Thu
Oct 8
8658
UV 7
Fri
Oct 9
8057
UV 7
Sat
Oct 10
7055
UV 7
Sun
Oct 11
6950
UV 7
Mon
Oct 12
7249
UV 7
66°
91°63°
88°62°
86°58°
80°57°
70°55°
69°50°
72°49°
As of 1:00 AM in Portola Redwoods State Park, California.
Air quality
The air at Portola Redwoods State Park
Index 29, good, led by fine particles. Read at 1 AM from its reporting area, Redwood City (CA), 16 miles off.
29Good
- Fine particles (PM2.5)29Good16.1 mi
- Ozone4Good0 ppb16.1 mi
- Nitrogen dioxide29Good31.4 ppb16.1 mi
- Carbon monoxide-0.4 ppm16.1 mi
The days ahead
Highest 101, unhealthy for sensitive groups, today, led by ozone. Yesterday measured 44, good.
GoodModerateSensitive groups
- 44YesterdayOct 5
- 101TodayOct 6
- ModerateWedOct 7
- ModerateThuOct 8
- ModerateFriOct 9
- GoodSatOct 10
Smoke, the next 41 hours
Little smoke near the ground through Wed 5 PM: the index from smoke stays at 6 or under.
Precipitation
What has fallen at Portola Redwoods State Park
None in the last 3 days, to Tue 12 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 Portola Redwoods State Park, the next 41 hours
Visibility stays 10 miles or more through Wed 5 PM.
F
Now, today, and the week
Weather instrument stations by state
Park
- Designation
- State Park
- Area
- 4.23 sq mi
- Height at its point
- 472 ft
- County
- San Mateo County
- State
- California
- Latitude
- 37.2511° N
- Longitude
- 122.2239° W
What is measuring near here
The 5 instruments nearest Portola Redwoods State Park, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 4.1 miles away.
measured now3 instruments
Citizen station CW1792CW1792
In a volunteer observer's own ground/11.3 mi away/374 ft/98 ft below here
temp, humidity, wind, precip, pressure
At an airfield/14.4 mi away/39 ft/433 ft below here
temp, wind, gust, visibility, precip, pressure
measured daily2 instruments
In a park or preserve/4.8 mi away/2,253 ft/1,781 ft above here
snowfall, snow depth, precip, high, low
Boulder Creek 4.1 NCA-SZ-36
In a volunteer observer's own ground/6.0 mi away/984 ft/512 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 Portola Redwoods State Park
The nearest places, each with its own forecast and the instruments nearest it.
- Loma Marcommunity, 5 mi
- La Hondacommunity, 5 mi
- Pescaderocommunity, 8 mi
- Portola Valleytown, 9 mi
- Los Altos Hillstown, 9 mi
- Boulder Creekcommunity, 9 mi
- Loyolacommunity, 10 mi
- Laderacommunity, 10 mi
- Los Altoscity, 11 mi
- Cupertinocity, 11 mi
- Saratogacity, 11 mi
- Brookdalecommunity, 12 mi