Citizen station GW2644GW2644
In a volunteer observer's own ground/2.6 mi away/58 ft/32 ft below here
temp, humidity, wind, precip, pressure
Weather/California/Norwalk
Norwalk, California
City in Los Angeles County, California* WHAT...Temperatures up to 95 expected. * WHERE...Coastal areas of southwest California * WHEN...Until 8 PM PDT Saturday. * IMPACTS...Hot temperatures may cause heat illnesses.
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. In the event of a nearby wildfire, smoke may increase heat and physical stress. If smoke impacts your area; 1) Have a cooling plan in place as smoke could limit your ability to cool your home through open windows and 2) If you have air conditioning, set on air recirculation within the home to avoid smoke exposure. Local officials may have additional guidance.
78°
94°/63°
Clear·
Feels like 78°·Light air 4 mph WNW
Alert. A Heat Advisory is in force for Norwalk until 8 PM Saturday. Read the alert in full, and see what it means in the Field Book.
Now. Norwalk is 78° and clear at 9 PM. The dew point is 38°, so the air feels dry and comfortable. Light air from the west-northwest at 4 mph.
Today and tonight. Tonight falls to about 71° by 6 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 97°, and the coolest Wednesday, near 70°. Rain is likely Tuesday (56%) and Wednesday (61%). Tomorrow is hot, 97°: heat is a danger to anyone outdoors for long.
The sky now. The Moon is a waxing crescent, 26% lit, and sets at 9:39 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 22 minutes long, 2 minutes shorter than yesterday.
0UV Low
48Air quality
20%Humidity
0%Cloud
Now
9:00 PM
78feels78
now, clear
Today
Oct 15
9463
UV 7
Fri
Oct 16
9771
14mph
UV 7
Sat
Oct 17
9372
UV 6
Sun
Oct 18
8867
UV 6
Mon
Oct 19
8266
UV 6
Tue
Oct 20
7362
56%
12mph
Wed
Oct 21
7058
61%
78°
94°63°
97°71°
93°72°
88°67°
82°66°
73°62°
70°58°
As of 9:00 PM in Norwalk, California.
Air quality
The air at Norwalk
Index 48, good, led by nitrogen dioxide. Read at 8 PM from its reporting area, S Central LA CO (CA), 7 miles off.
48Good
- Fine particles (PM2.5)32Good6.6 mi
- Ozone26Good6 ppb6.6 mi
- Coarse particles (PM10)-9.9 mi
- Nitrogen dioxide48Good51.5 ppb6.6 mi
- Sulfur dioxide0Good0.4 ppb13.9 mi
- Carbon monoxide-0.7 ppm6.6 mi
The days ahead
Moderate each day through Fri Oct 16, led by fine particles. Yesterday measured 48, good.
GoodModerate
- 48YesterdayOct 14
- 56TodayOct 15
- 55FriOct 16
Smoke, the next 45 hours
Little smoke near the ground through Sat 5 PM: the index from smoke stays at 17 or under.
Precipitation
What has fallen at Norwalk
None in the last 3 days, to Thu 8 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 Norwalk, the next 45 hours
Visibility stays 10 miles or more through Sat 5 PM.
F
Now, today, and the week
On the radar over Norwalk, CaliforniaReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture
Weather instrument stations by state
What is measuring near here
The 6 instruments nearest Norwalk, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 2.6 miles away.
measured now4 instruments
Rank4,236of 4,465
At an airfield/6.5 mi away/95 ft/5 ft above here
temp, wind, gust, visibility, precip, pressure
Whittier Hills- RAWS #5195WTHC1
A remote fire weather station/7.0 mi away/850 ft/760 ft above here
temp, wind, gust, humidity, pressure
I-15 : Jurupa AvenueCF174
Beside a road/32.2 mi away/908 ft/818 ft above here
temp, pavement temp, wind, visibility, precip
measured daily2 instruments
Artesia 0.5 WCA-LA-68
In a volunteer observer's own ground/2.6 mi away/59 ft/31 ft below here
precip, snowfall, snow depth
Pasadena - San Gabriel FireJBLC1
At a cooperative observer's station/13.9 mi away/468 ft/378 ft above here
snowfall, snow depth, precip, high, low
Station report
The weather at Fullerton Municipal, drawn
The nearest airport reporting now, 6.5 mi from Norwalk, California. From its report of Oct 15, 2026, 7:53 PM local time: 3 of its 6 sheets.
The sky
No cloud below 12,000 ft; visibility 10 mi or more.
The air
83.0 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 10,400 ft up.
The wind
At 5 mph: force 2, a light breeze on the Beaufort scale. The strongest gust today was 20 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.
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Near Norwalk
The nearest places, each with its own forecast and the instruments nearest it.
- Artesiacity, 3 mi
- Bellflowercity, 3 mi
- Santa Fe Springscity, 3 mi
- Cerritoscity, 3 mi
- Downeycity, 3 mi
- South Whittiercommunity, 4 mi
- La Miradacity, 4 mi
- Lakewoodcity, 4 mi
- Paramountcity, 4 mi
- La Palmacity, 5 mi
- West Whittier-Los Nietoscommunity, 5 mi
- Hawaiian Gardenscity, 5 mi