Storm Station
Rancho Santa Margarita, California
72° 84°/65°
Overcast· Feels like 72°·Light breeze 4 mph E
Mostly cloudy, with a low around 68. Northeast wind around 0 mph.
0UV Low
56Air quality
54%Humidity
100%Cloud
Now
12:15 AM
72feels72
now, overcast
Today
Sep 27
8465
UV 7
overcast
Mon
Sep 28
8159
UV 7
fog
Tue
Sep 29
8860
UV 7
clear day
Wed
Sep 30
9063
UV 7
clear day
Thu
Oct 1
9767
UV 7
clear day
Fri
Oct 2
10274
UV 7
clear day
Sat
Oct 3
10280
UV 7
clear day
72°
84°65°
81°59°
88°60°
90°63°
97°67°
102°74°
102°80°

As of 12:15 AM in Rancho Santa Margarita, California.

What is measuring near here

The 5 instruments nearest Rancho Santa Margarita, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.4 miles away.

measured now3 instruments

Santiago Peak 3SNPC1

At a river or reservoir gauge/5.3 mi away/4,301 ft/3,290 ft above here

temp, wind, gust, humidity, pressure

Rank2,977of 3,115

Santa Ana/Jon-WayneSNA

At an airfield/15.9 mi away/52 ft/959 ft below here

temp, wind, gust, visibility, precip, pressure

Rank7of 3,115

Fallbrook 5 NE53151

At a climate reference station/27.5 mi away/1,140 ft/129 ft above here

temp, humidity, wind, solar, precip

Rank-

measured daily2 instruments

Irvine RanchIVRC1

On a farm or research station/9.1 mi away/535 ft/476 ft below here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Santa Ana/Jon-Wayne, drawn

The nearest airport reporting now, 15.9 mi from Rancho Santa Margarita. From its report of Sep 26, 2026, 11:53 PM local time: 3 of its 6 sheets.

The sky

Scattered at 700 ft; visibility 10 mi or more.

Section of the sky over Santa Ana/Jon-Wayne, height above the station to scale: scattered cloud with its base at 700 feet, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT SNAFIG. A THE SKY OVER SANTA ANA/JON-WAYNESECTION, HEIGHT ABOVE THE STATION TO SCALE, EACH LAYER AT THE HEIGHT OF ITS BASE AS REPORTED; COVER IN EIGHTHS OF THE SKY; TOPS NOT MEASUREDFT ABOVE THE STATION05001,0001,5002,0002,5003,000ETAGESLOWTHE STATIONTHE CEILOMETER READS TO 12,000 FT, ABOVE THIS SHEETSCT 700 FTSCATTERED, 3 TO 4 EIGHTHS OF THE SKYVISIBILITY, MILES: 10 MI OR MORE0510TITLESanta Ana/Jon-Wayne, the skySTATION REPORT · ASOS SNATYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-09-27IDSR-SNA-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-017, FB-SKY-016, FB-SKY-018

The air

73.0 F with a dew point of 69.0 F, 87 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 900 ft up; the lowest cloud reported is at 700 ft.

Chart of the air at Santa Ana/Jon-Wayne: temperature 73.0 degrees Fahrenheit and dew point 69.0, 87 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 900 feet above the station, against the lowest cloud reported at 700 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT SNAFIG. B THE AIR AT SANTA ANA/JON-WAYNETHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,00060 F70 F80 FSATURATES 900 FT ABOVE THE STATION, AT 68.0 FLOWEST CLOUD REPORTED, SCT 700 FTTEMPERATURE 73.0 FDEW POINT 69.0 FSPREAD 4.0 FRELATIVE HUMIDITY 87 PER CENTTHE AIR COOLS ABOUT 5.4 F EACH 1,000 FT IT RISES, AND ITS DEW POINT ABOUT 1 FSOLID: THE LIFTED AIR'S TEMPERATURE; DASHED: ITS DEW POINTTITLESanta Ana/Jon-Wayne, the airSTATION REPORT · ASOS SNATYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-09-27IDSR-SNA-2DRAWN AS linework on paperSOURCES FB-WAT-020, FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the south (190 degrees) at 8 mph: force 3, a gentle breeze on the Beaufort scale. The strongest gust today was 20 mph.

Plan of the wind at Santa Ana/Jon-Wayne, north up: blowing from 190 degrees, the south, at 8 miles an hour; beside it the Beaufort scale from calm to hurricane force, force 3, gentle breeze, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT SNAFIG. C THE WIND AT SANTA ANA/JON-WAYNEPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 190°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE8NOW, 8 MPH4MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLESanta Ana/Jon-Wayne, the windSTATION REPORT · ASOS SNATYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-09-27IDSR-SNA-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of Santa Ana/Jon-Wayne, in 6 sheets, each beside the Field Book plates that explain it

-in

Snow on the ground

Elsewhere in California

33 places, each with its own forecast and its own instruments.

Near Rancho Santa Margarita

The nearest places, each with its own forecast and the instruments nearest it.