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Ruby, Michigan

Community in St. Clair County, Michigan

Air quality

The air at Ruby

Index 27, good, led by ozone. Read at 11 PM from its reporting area, Southeast (MI), 53 miles off.

27Good
  • Fine particles (PM2.5)23Good9.4 mi
  • Ozone27Good18 ppb9.4 mi
  • Coarse particles (PM10)8Good-
  • Sulfur dioxide3Good2.9 ppb9.4 mi

The days ahead

Good each day through Fri Oct 16, led by ozone. Yesterday measured 38, good.

Smoke, the next 46 hours

No smoke near the ground through Sat 8 PM.

FriSat

Precipitation

What has fallen at Ruby

None in the last 24 hours; 0.14 in over the last 3 days, to Thu 10 PM. Measured by radar and rain gauges, as water.

Last 24 hours
0.00in
Last 3 days
0.14in

Visibility

How far you can see at Ruby, the next 46 hours

Fog: visibility falls to 0.9 miles Fri 1 AM, under a mile for 1 hour.

FriSat

On the radar over Ruby, MichiganReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

What is measuring near here

The 6 instruments nearest Ruby, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 4.0 miles away.

measured now4 instruments

Port HuronPHN

At an airfield/9.2 mi away/650 ft/49 ft below here

temp, wind, gust, visibility, precip, pressure

Rank705of 979

Fort GratiotNDBC-FTGM4

At a river or reservoir gauge/9.7 mi away/-/- ft from here

temp, wind, gust, humidity, pressure

Rank919of 979

measured daily2 instruments

Fort Gratiot 1.9 WSWMI-SC-6

In a volunteer observer's own ground/5.1 mi away/630 ft/69 ft below here

precip, snowfall, snow depth

Rank-

Port HuronPRHM4

At a cooperative observer's station/10.4 mi away/541 ft/158 ft below here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Citizen station FW3669, drawn

The nearest instrument reporting now, 4.0 mi from Ruby, Michigan. From its report of undefined: 3 of its 4 sheets.

The wind

From the south southeast (155 degrees) at 4 mph, gusting 8 mph: force 2, a light breeze on the Beaufort scale.

Plan of the wind at Citizen station FW3669, north up: blowing from 155 degrees, the south southeast, at 4 miles an hour, gusting 8; beside it the Beaufort scale from calm to hurricane force, force 2, light breeze, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT FW3669FIG. C THE WIND AT CITIZEN STATION FW3669PLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 155°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE4NOW, 4 MPH3GENTLE BREEZE8GUST, 8 MPH4MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLECitizen station FW3669, the windSTATION REPORT · CWOP FW3669TYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 1 of 4DATE2026-10-16IDSR-FW3669-1DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008

The column

At 731 ft above sea level, 3 per cent of the atmosphere's air lies below the station. The standard atmosphere puts the pressure there at 29.14 inHg and the temperature at 56.4 F; the station's altimeter setting of 29.78 inHg means its barometer reads 29.00 inHg; it reports 56.0 F, 0.4 F colder than standard.

Section from sea level of where Citizen station FW3669 stands in the atmosphere, height to scale: the station 731 feet above sea level with 3 per cent of the air below it; the standard atmosphere's pressure there, 29.14 inches of mercury, and temperature, 56.4 degrees Fahrenheit; the altimeter setting of 29.78 and the station pressure it means, 29.00.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT FW3669FIG. D WHERE CITIZEN STATION FW3669 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 ATMOSPHERECITIZEN STATION FW36693 PER CENT OF THE AIR BELOW IT731 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 HERE29.14 inHgSTANDARD TEMPERATURE HERE56.4 FALTIMETER SETTING, REPORTED29.78 inHgITS BAROMETER READS29.00 inHgTEMPERATURE, REPORTED56.0 FTITLECitizen station FW3669, the columnSTATION REPORT · CWOP FW3669TYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 4DATE2026-10-16IDSR-FW3669-2DRAWN AS linework on paperSOURCES FB-ENG-001, FB-ENG-003

The sun

On Oct 16 the noon sun stands 38 degrees above the horizon at 43.03 N, and the day is 10 h 51 min long. Level ground there takes 61 per cent of the noon sunlight a surface facing the sun would.

Elevation of the noon sun at Citizen station FW3669, angles true: on Oct 16 it stands 38 degrees above the horizon, against 70 at the June solstice, 47 at the equinoxes and 24 at the December solstice; the day is 10 h 51 min long.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT FW3669FIG. E THE SUN AT CITIZEN STATION FW3669ELEVATION 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 70°EQUINOXES 47°DECEMBER SOLSTICE 24°OCT 16, 38°SOUTHANGLES TRUE; THE RAYS ARE OF ONE LENGTH AND DRAW DIRECTION ONLYDAY LENGTH 10 H 51 MINLEVEL GROUND TAKES 61 PER CENT OF THE NOON SUN A FACING SURFACE WOULDLATITUDE 43.03 N; THE SUN'S DECLINATION -9.1°TITLECitizen station FW3669, the sunSTATION REPORT · CWOP FW3669TYPEELEVATIONSCALEANGLES TRUEREVAS REPORTED SHEET 3 of 4DATE2026-10-16IDSR-FW3669-3DRAWN AS linework on paperSOURCES FB-ENG-007

The full report of Citizen station FW3669, in 4 sheets, each beside the Field Book plates that explain it

0in

Snow on the ground

Measured at Port Huron (PRHM4), 10.4 miles from here, read 13 Oct, 23:59. measured daily

Elsewhere in Michigan

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

Near Ruby

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

Near Ruby

River and lake gauges