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Keswick, California

Community in Shasta County, California

Air quality

The air at Keswick

Index 31, good, led by ozone. Read at 12 AM from its reporting area, Redding (CA), 6 miles off.

31Good
  • Fine particles (PM2.5)13Good6.4 mi
  • Ozone31Good38 ppb5.7 mi

The days ahead

Yesterday measured 33, good.

Smoke, the next 41 hours

Little smoke near the ground through Sat 5 PM: the index from smoke stays at 6 or under.

FriSat

Precipitation

What has fallen at Keswick

None in the last 3 days, to Thu 11 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 Keswick, the next 41 hours

Visibility stays 10 miles or more through Sat 5 PM.

FriSat

On the radar over Keswick, CaliforniaReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

What is measuring near here

The 6 instruments nearest Keswick, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 2.2 miles away.

measured now4 instruments

ObrienCF167

Beside a road/14.7 mi away/1,388 ft/635 ft above here

temp, pavement temp, wind, visibility, precip

Rank4,042of 4,465

measured daily2 instruments

Shasta 0.1 SECA-SH-45

In a volunteer observer's own ground/2.2 mi away/1,003 ft/250 ft above here

precip, snowfall, snow depth

Rank-

Station report

The weather at South Fork Mtn, drawn

The nearest instrument reporting now, 4.0 mi from Keswick, California. From its report of Oct 15, 2026, 11:59 PM local time: 3 of its 3 sheets.

The column

At 3,379 ft above sea level, 12 per cent of the atmosphere's air lies below the station. The standard atmosphere puts the pressure there at 26.44 inHg and the temperature at 46.9 F; it reports 70.8 F, 23.9 F warmer than standard.

Section from sea level of where South Fork Mtn stands in the atmosphere, height to scale: the station 3,379 feet above sea level with 12 per cent of the air below it; the standard atmosphere's pressure there, 26.44 inches of mercury, and temperature, 46.9 degrees Fahrenheit.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT SFKC1FIG. D WHERE SOUTH FORK MTN 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 ATMOSPHERESOUTH FORK MTN12 PER CENT OF THE AIR BELOW IT3,379 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 HERE26.44 inHgSTANDARD TEMPERATURE HERE46.9 FTEMPERATURE, REPORTED70.8 FTITLESouth Fork Mtn, the columnSTATION REPORT · DCP SFKC1TYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 3DATE2026-10-16IDSR-SFKC1-1DRAWN AS linework on paperSOURCES FB-ENG-001, FB-ENG-003

The sun

On Oct 16 the noon sun stands 40 degrees above the horizon at 40.66 N, and the day is 10 h 57 min long. Level ground there takes 65 per cent of the noon sunlight a surface facing the sun would.

Elevation of the noon sun at South Fork Mtn, angles true: on Oct 16 it stands 40 degrees above the horizon, against 73 at the June solstice, 49 at the equinoxes and 26 at the December solstice; the day is 10 h 57 min long.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT SFKC1FIG. E THE SUN AT SOUTH FORK MTNELEVATION LOOKING WEST, SOUTH TO THE LEFT: THE NOON SUN ON THE DAY OF THE REPORT, AND AT THE SOLSTICES AND EQUINOXES; ANGLES TRUETHE STATIONJUNE SOLSTICE 73°EQUINOXES 49°DECEMBER SOLSTICE 26°OCT 16, 40°SOUTHANGLES TRUE; THE RAYS ARE OF ONE LENGTH AND DRAW DIRECTION ONLYDAY LENGTH 10 H 57 MINLEVEL GROUND TAKES 65 PER CENT OF THE NOON SUN A FACING SURFACE WOULDLATITUDE 40.66 N; THE SUN'S DECLINATION -9.1°TITLESouth Fork Mtn, the sunSTATION REPORT · DCP SFKC1TYPEELEVATIONSCALEANGLES TRUEREVAS REPORTED SHEET 2 of 3DATE2026-10-16IDSR-SFKC1-2DRAWN AS linework on paperSOURCES FB-ENG-007

The instrument

A data collection platform, 3,379 ft above sea level. Its report of Oct 15, 2026, 11:59 PM local time is written on the sensors that made it.

Elevation of a data collection platform, South Fork Mtn, each sensor drawn and labelled with what it read: antenna, sending by satellite, last heard oct 15, 2026, 11:59 pm local time; air temperature, 70.8 f; precipitation gauge, 0.00 in today.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT SFKC1FIG. F THE INSTRUMENTELEVATION OF A DATA COLLECTION PLATFORM, EACH SENSOR WITH WHAT IT READ, OCT 15, 2026, 11:59 PM LOCAL TIMEANTENNA, SENDING BY SATELLITELAST HEARD OCT 15, 2026, 11:59 PM LOCAL TIMEAIR TEMPERATURE70.8 FPRECIPITATION GAUGE0.00 IN TODAYSCHEMATIC; THE SPACING BETWEEN SENSORS IS NOT TO SCALETITLESouth Fork Mtn, the instrumentSTATION REPORT · DCP SFKC1TYPEELEVATIONSCALESCHEMATICREVAS REPORTED SHEET 3 of 3DATE2026-10-16IDSR-SFKC1-3DRAWN AS linework on paperSOURCES FB-INS-001

The full report of South Fork Mtn, in 3 sheets, each beside the Field Book plates that explain it

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Snow on the ground

Elsewhere in California

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

Near Keswick

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

Near Keswick

River and lake gauges