Citizen station GW4487GW4487
In a volunteer observer's own ground/1.9 mi away/178 ft/75 ft above here
temp, humidity, wind, precip, pressure
Weather/California/Tustin
Tustin, 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.
84°
92°/62°
Clear·
Feels like 81°·Gentle breeze 11 mph NE
Alert. A Heat Advisory is in force for Tustin 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. Tustin is 84° and clear at 9 PM. The dew point is 36°, so the air feels dry and comfortable. Gentle breeze from the northeast at 11 mph, gusting to 21 mph.
Today and tonight. Tonight falls to about 73° 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 95°, and the coolest Wednesday, near 69°. Rain is likely Tuesday (57%) and Wednesday (64%). The windiest day is tomorrow, with wind to 20 mph. Tomorrow is hot, 95°: 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
36Air quality
17%Humidity
0%Cloud
Now
9:00 PM
84feels81
now, clear
Today
Oct 15
9262
17mph
UV 7
Fri
Oct 16
9573
20mph
UV 7
Sat
Oct 17
9174
12mph
UV 6
Sun
Oct 18
8568
UV 6
Mon
Oct 19
8066
UV 6
Tue
Oct 20
7263
57%
14mph
Wed
Oct 21
6959
64%
84°
92°62°
95°73°
91°74°
85°68°
80°66°
72°63°
69°59°
As of 9:00 PM in Tustin, California.
Air quality
The air at Tustin
Index 36, good, led by ozone. Read at 8 PM from its reporting area, Central Orange (CA), 10 miles off.
36Good
- Fine particles (PM2.5)12Good9.7 mi
- Ozone36Good40 ppb9.7 mi
- Coarse particles (PM10)28Good9.7 mi
- Nitrogen dioxide4Good4.8 ppb8.4 mi
- Carbon monoxide-0.2 ppm8.4 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 45 hours
Little smoke near the ground through Sat 5 PM: the index from smoke stays at 11 or under.
Precipitation
What has fallen at Tustin
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 Tustin, the next 45 hours
Visibility stays 10 miles or more through Sat 5 PM.
F
Now, today, and the week
On the radar over Tustin, CaliforniaReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture
Weather instrument stations by state
What is measuring near here
The 6 instruments nearest Tustin, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 1.0 miles away.
measured now4 instruments
Rank4,266of 4,465
At an airfield/5.0 mi away/52 ft/51 ft below here
temp, wind, gust, visibility, precip, pressure
Villa Park Dam - Alert #220VLLC1
At a river or reservoir gauge/6.4 mi away/512 ft/409 ft above here
temp, wind, gust, humidity, pressure
I-15 : Jurupa AvenueCF174
Beside a road/26.6 mi away/908 ft/805 ft above here
temp, pavement temp, wind, visibility, precip
measured daily2 instruments
Tustin 1.4 NWCA-OR-4
In a volunteer observer's own ground/1.0 mi away/132 ft/29 ft above here
precip, snowfall, snow depth
Santa Ana Fire STNSTAC1
At a cooperative observer's station/3.0 mi away/125 ft/22 ft above here
snowfall, snow depth, precip, high, low
Station report
The weather at Santa Ana/Jon-Wayne, drawn
The nearest airport reporting now, 5.0 mi from Tustin, California. From its report of Oct 15, 2026, 8:53 PM local time: 3 of its 6 sheets.
The sky
No cloud below 12,000 ft; visibility 10 mi or more.
The air
86.0 F with a dew point of 36.0 F, 17 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 11,300 ft up.
The wind
From the northeast (40 degrees) at 10 mph, gusting 21 mph: force 3, a gentle 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 Tustin
The nearest places, each with its own forecast and the instruments nearest it.
- North Tustincommunity, 2 mi
- Irvinecity, 4 mi
- Santa Anacity, 4 mi
- Orangecity, 5 mi
- Villa Parkcity, 6 mi
- Costa Mesacity, 8 mi
- Fountain Valleycity, 8 mi
- Garden Grovecity, 8 mi
- Newport Beachcity, 9 mi
- Anaheimcity, 9 mi
- Midway Citycommunity, 10 mi
- Lake Forestcity, 10 mi