Storm Station
Monrovia, California
73° 87°/67°
Overcast· Feels like 73°·Light air 2 mph ESE
Mostly cloudy, with a low around 65. East southeast wind around 5 mph.
0UV Low
75Air quality
62%Humidity
100%Cloud
Now
12:45 AM
73feels73
now, overcast
Today
Sep 27
8767
UV 7
drizzle light
Mon
Sep 28
8563
UV 7
fog
Tue
Sep 29
9073
UV 7
clear day
Wed
Sep 30
8773
UV 7
clear day
Thu
Oct 1
9477
UV 7
clear day
Fri
Oct 2
10183
UV 7
clear day
Sat
Oct 3
10087
UV 7
clear day
73°
87°67°
85°63°
90°73°
87°73°
94°77°
101°83°
100°87°

As of 12:45 AM in Monrovia, California.

What is measuring near here

The 4 instruments nearest Monrovia, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 1.6 miles away.

measured now2 instruments

Santa Fe Dam RAWSSTFC1

A remote fire weather station/3.8 mi away/518 ft/2 ft below here

temp, wind, gust, humidity, pressure

Rank631of 3,115

El MonteEMT

At an airfield/4.5 mi away/295 ft/225 ft below here

temp, wind, gust, visibility, precip, pressure

Rank3,106of 3,115

measured daily2 instruments

Arcadia 1.3 ESECA-LA-142

In a volunteer observer's own ground/1.6 mi away/403 ft/117 ft below here

precip, snowfall, snow depth

Rank-

San Gabriel Canyon PhGABC1

At a cooperative observer's station/5.6 mi away/1,040 ft/520 ft above here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Santa Fe Dam RAWS, drawn

The nearest instrument reporting now, 3.8 mi from Monrovia. From its report of Sep 26, 2026, 11:57 PM local time: 3 of its 5 sheets.

The air

73.0 F with a dew point of 56.9 F, 57 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 3,700 ft up.

Chart of the air at Santa Fe Dam RAWS: temperature 73.0 degrees Fahrenheit and dew point 56.9, 57 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 3,700 feet above the station; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT STFC1FIG. B THE AIR AT SANTA FE DAM RAWSTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,0004,0005,00040 F50 F60 F70 F80 FSATURATES 3,700 FT ABOVE THE STATION, AT 53.2 FTEMPERATURE 73.0 FDEW POINT 56.9 FSPREAD 16.1 FRELATIVE HUMIDITY 57 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 Fe Dam RAWS, the airSTATION REPORT · DCP STFC1TYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 5DATE2026-09-27IDSR-STFC1-1DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the west (267 degrees) at 2 mph, gusting 6 mph: force 1, a light air on the Beaufort scale. The strongest gust today was 16 mph.

Plan of the wind at Santa Fe Dam RAWS, north up: blowing from 267 degrees, the west, at 2 miles an hour, gusting 6; beside it the Beaufort scale from calm to hurricane force, force 1, light air, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT STFC1FIG. C THE WIND AT SANTA FE DAM RAWSPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 267°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR1NOW, 2 MPH2LIGHT BREEZE4GUST, 6 MPH3GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLESanta Fe Dam RAWS, the windSTATION REPORT · DCP STFC1TYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 2 of 5DATE2026-09-27IDSR-STFC1-2DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008

The column

At 518 ft above sea level, 2 per cent of the atmosphere's air lies below the station. The standard atmosphere puts the pressure there at 29.37 inHg and the temperature at 57.2 F; it reports 73.0 F, 15.8 F warmer than standard.

Section from sea level of where Santa Fe Dam RAWS stands in the atmosphere, height to scale: the station 518 feet above sea level with 2 per cent of the air below it; the standard atmosphere's pressure there, 29.37 inches of mercury, and temperature, 57.2 degrees Fahrenheit.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT STFC1FIG. D WHERE SANTA FE DAM RAWS STANDS IN THE ATMOSPHERESECTION FROM SEA LEVEL, HEIGHT TO SCALE, THE STATION IN THE STANDARD ATMOSPHEREFT ABOVE SEA LEVEL05,00010,00015,000SEA LEVEL, 29.92 inHg IN THE STANDARD ATMOSPHERESANTA FE DAM RAWS2 PER CENT OF THE AIR BELOW IT518 FT10 PER CENT OF THE AIR BELOW, 2,890 FT20 PER CENT OF THE AIR BELOW, 6,050 FT30 PER CENT OF THE AIR BELOW, 9,540 FT40 PER CENT OF THE AIR BELOW, 13,470 FTSTANDARD PRESSURE HERE29.37 inHgSTANDARD TEMPERATURE HERE57.2 FTEMPERATURE, REPORTED73.0 FTITLESanta Fe Dam RAWS, the columnSTATION REPORT · DCP STFC1TYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 3 of 5DATE2026-09-27IDSR-STFC1-3DRAWN AS linework on paperSOURCES FB-ENG-001, FB-ENG-003

The full report of Santa Fe Dam RAWS, in 5 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 Monrovia

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