Storm Station
Castella, California
54° 77°/55°
Overcast· Feels like 54°·Light breeze 5 mph NE
Partly cloudy. Low around 50, with temperatures rising to around 52 overnight. Wind around 0 mph.
0UV Low
45Air quality
21%Humidity
83%Cloud
Now
12:45 AM
54feels54
now, overcast
Today
Sep 27
7755
overcast
Mon
Sep 28
8057
clear day
Tue
Sep 29
8555
overcast
Wed
Sep 30
9259
clear day
Thu
Oct 1
9065
overcast
Fri
Oct 2
8966
overcast
Sat
Oct 3
9366
overcast
54°
77°55°
80°57°
85°55°
92°59°
90°65°
89°66°
93°66°

As of 12:45 AM in Castella, California.

What is measuring near here

The 6 instruments nearest Castella, 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 now4 instruments

GirardGRDC1

At a river or reservoir gauge/2.5 mi away/3,809 ft/1,689 ft above here

temp, wind, gust, humidity, pressure

Rank1,255of 3,115

Sims RoadCD016

Beside a road/6.9 mi away/1,821 ft/299 ft below here

temp, pavement temp, wind, visibility, precip

Rank3,008of 3,115

Mount Shasta CityMHS

At an airfield/10.3 mi away/3,546 ft/1,426 ft above here

temp, wind, gust, visibility, precip, pressure

Rank150of 3,115

French GulchS2218

At a soil climate station/29.0 mi away/3,704 ft/1,584 ft above here

temp, humidity, soil temp, soil moisture

Rank-

measured daily2 instruments

Castella 0.8 NCA-SH-66

In a volunteer observer's own ground/1.6 mi away/2,052 ft/68 ft below here

precip, snowfall, snow depth

Rank-

Dunsmuir Treatment PLDUNC1

At a cooperative observer's station/1.6 mi away/2,995 ft/875 ft above here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Mount Shasta City, drawn

The nearest airport reporting now, 10.3 mi from Castella. From its report of Sep 26, 2026, 11:56 PM local time: 3 of its 6 sheets.

The sky

No cloud below 12,000 ft; visibility 10 mi or more.

Section of the sky over Mount Shasta City, height above the station to scale: no cloud detected below 12,000 feet, the reach of its ceilometer, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT MHSFIG. A THE SKY OVER MOUNT SHASTA CITYSECTION, 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 SHEETNO CLOUD DETECTED BELOW 12,000 FTVISIBILITY, MILES: 10 MI OR MORE0510TITLEMount Shasta City, the skySTATION REPORT · ASOS MHSTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-09-27IDSR-MHS-1DRAWN AS linework on paperSOURCES FB-SKY-001

The air

41.0 F with a dew point of 27.0 F, 57 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 3,200 ft up.

Chart of the air at Mount Shasta City: temperature 41.0 degrees Fahrenheit and dew point 27.0, 57 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 3,200 feet above the station; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT MHSFIG. B THE AIR AT MOUNT SHASTA CITYTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,0004,00010 F20 F30 F40 F50 FSATURATES 3,200 FT ABOVE THE STATION, AT 24.1 FTEMPERATURE 41.0 FDEW POINT 27.0 FSPREAD 14.0 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 POINTTITLEMount Shasta City, the airSTATION REPORT · ASOS MHSTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-09-27IDSR-MHS-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

Calm.

Plan of the wind at Mount Shasta City, north up: calm; beside it the Beaufort scale from calm to hurricane force, force 0, calm, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT MHSFIG. C THE WIND AT MOUNT SHASTA CITYPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONCALMBEAUFORT FORCELEAST WIND, MPH0CALM0NOW, 0 MPH1LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEMount Shasta City, the windSTATION REPORT · ASOS MHSTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-09-27IDSR-MHS-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of Mount Shasta City, in 6 sheets, each beside the Field Book plates that explain it

0in

Snow on the ground

Measured at Dunsmuir Treatment PL (DUNC1), 1.6 miles from here, read 25 Sep, 08:00. measured daily

Elsewhere in California

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

Near Castella

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