Citizen station FW0058FW0058
In a volunteer observer's own ground/5.1 mi away/109 ft/76 ft above here
temp, humidity, wind, precip, pressure
Weather/California/Fountain Valley
Fountain Valley, California
City in Orange County, CaliforniaHeat Advisory, in full · Every severe alert
* WHAT...For the Wind Advisory, northeast winds 20 to 30 mph with gusts 35 to 55 mph expected. Strongest winds will be near the foothills and in canyons of the Santa Ana mountains, with gusts up to 70 mph possible. For the Heat Advisory, temperatures up to 95 degrees * WHERE...Orange County Inland Areas. * WHEN...For the Heat Advisory, until 8 PM PDT Saturday. For the Wind Advisory, until noon PDT Saturday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. Moderate to locally major HeatRisk. Those sensitive to heat may be impacted.
Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke.
80°
93°/63°
Clear·
Feels like 79°·Light breeze 8 mph NNW
Alert. A Heat Advisory is in force for Fountain Valley until 8 PM Saturday. 1 more alert is in force here as well. Read the alert in full, and see what it means in the Field Book.
Now. Fountain Valley is 80° and clear at 11 PM. The dew point is 38°, so the air feels dry and comfortable. Light breeze from the north-northwest at 8 mph.
Today and tonight. Tonight falls to about 73° by 3 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 96°, and the coolest Wednesday, near 70°. Rain is likely Tuesday (57%) and Wednesday (63%). Tomorrow is hot, 96°: heat is a danger to anyone outdoors for long.
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 23 minutes long, 2 minutes shorter than yesterday.
0UV Low
34Air quality
20%Humidity
0%Cloud
Now
11:00 PM
80feels79
now, clear
Today
Oct 15
9363
15mph
UV 7
Fri
Oct 16
9672
18mph
UV 7
Sat
Oct 17
9273
UV 6
Sun
Oct 18
8667
UV 6
Mon
Oct 19
8066
UV 6
Tue
Oct 20
7263
57%
14mph
Wed
Oct 21
7059
63%
80°
93°63°
96°72°
92°73°
86°67°
80°66°
72°63°
70°59°
As of 11:00 PM in Fountain Valley, California.
Air quality
The air at Fountain Valley
Index 34, good, led by ozone. Read at 10 PM from its reporting area, Central Orange (CA), 7 miles off.
34Good
- Fine particles (PM2.5)11Good8.4 mi
- Ozone34Good39 ppb8.4 mi
- Coarse particles (PM10)23Good8.4 mi
- Nitrogen dioxide11Good12 ppb7.8 mi
- Carbon monoxide-0.4 ppm7.8 mi
The days ahead
Moderate each day through Fri Oct 16, led by fine particles. Yesterday measured 44, good.
GoodModerate
- 44YesterdayOct 14
- 53TodayOct 15
- 64FriOct 16
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 Fountain Valley
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 Fountain Valley, the next 43 hours
Visibility stays 10 miles or more through Sat 5 PM.
F
Now, today, and the week
On the radar over Fountain Valley, CaliforniaReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture
Weather instrument stations by state
What is measuring near here
The 6 instruments nearest Fountain Valley, 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
Rank3,559of 4,465
At an airfield/5.4 mi away/52 ft/19 ft above here
temp, wind, gust, visibility, precip, pressure
Laguna BeachNPRC1
At a river or reservoir gauge/11.3 mi away/951 ft/918 ft above here
temp, wind, gust, humidity, pressure
I-15 : Jurupa AvenueCF174
Beside a road/32.7 mi away/908 ft/875 ft above here
temp, pavement temp, wind, visibility, precip
measured daily2 instruments
Fountain Valley 1.3 SWCA-OR-96
In a volunteer observer's own ground/1.2 mi away/18 ft/15 ft below here
precip, snowfall, snow depth
Santa Ana Fire STNSTAC1
At a cooperative observer's station/5.4 mi away/125 ft/92 ft above here
snowfall, snow depth, precip, high, low
Station report
The weather at Santa Ana/Jon-Wayne, drawn
The nearest airport reporting now, 5.4 mi from Fountain Valley, California. From its report of Oct 15, 2026, 10:53 PM local time: 3 of its 6 sheets.
The sky
No cloud below 12,000 ft; visibility 10 mi or more.
The air
84.0 F with a dew point of 37.0 F, 19 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 10,600 ft up.
The wind
From the east (80 degrees) at 6 mph: force 2, a light breeze on the Beaufort scale. The strongest gust today was 45 mph.
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 Fountain Valley
The nearest places, each with its own forecast and the instruments nearest it.
- Huntington Beachcity, 3 mi
- Midway Citycommunity, 3 mi
- Westminstercity, 4 mi
- Costa Mesacity, 4 mi
- Santa Anacity, 4 mi
- Garden Grovecity, 4 mi
- Stantoncity, 7 mi
- Newport Beachcity, 7 mi
- Tustincity, 8 mi
- Anaheimcity, 8 mi
- Seal Beachcity, 9 mi
- Los Alamitoscity, 9 mi