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Rock Island, Texas

Community in Colorado County, Texas

Air quality

The air at Rock Island

Index 36, good, led by ozone. Read at 6 PM from its reporting area, Victoria (TX), 55 miles off.

36Good
  • Ozone36Good-

The days ahead

Highest moderate, Sun Oct 18, led by ozone. Yesterday measured 42, good.

Smoke, the next 44 hours

Little smoke near the ground through Sun 1 PM: the index from smoke stays at 17 or under.

FriSatSun

Precipitation

What has fallen at Rock Island

None in the last 3 days, to Fri 5 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 Rock Island, the next 44 hours

Visibility stays 10 miles or more through Sun 1 PM.

FriSatSun

On the radar over Rock Island, TexasReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

What is measuring near here

The 5 instruments nearest Rock Island, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 7.0 miles away.

measured now3 instruments

Columbus66R

At an airfield/8.4 mi away/244 ft/1 ft below here

temp, wind, gust, visibility, precip, pressure

Rank881of 4,689

measured daily2 instruments

Sheridan 0.9 SSWTX-CLR-23

In a volunteer observer's own ground/7.0 mi away/258 ft/13 ft above here

precip, snowfall, snow depth

Rank-

Colorado River At ColumbusCBST2

At a cooperative observer's station/12.3 mi away/187 ft/58 ft below here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Citizen station GW6793, drawn

The nearest instrument reporting now, 10.7 mi from Rock Island, Texas. From its report of undefined: 3 of its 4 sheets.

The wind

From the north (11 degrees) at 7 mph, gusting 12 mph: force 2, a light breeze on the Beaufort scale.

Plan of the wind at Citizen station GW6793, north up: blowing from 11 degrees, the north, at 7 miles an hour, gusting 12; beside it the Beaufort scale from calm to hurricane force, force 2, light breeze, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT GW6793FIG. C THE WIND AT CITIZEN STATION GW6793PLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 11°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE4NOW, 7 MPH3GENTLE BREEZE8GUST, 12 MPH4MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLECitizen station GW6793, the windSTATION REPORT · CWOP GW6793TYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 1 of 4DATE2026-10-16IDSR-GW6793-1DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008

The column

At 340 ft above sea level, 1 per cent of the atmosphere's air lies below the station. The standard atmosphere puts the pressure there at 29.56 inHg and the temperature at 57.8 F; the station's altimeter setting of 30.28 inHg means its barometer reads 29.91 inHg; it reports 67.0 F, 9.2 F warmer than standard.

Section from sea level of where Citizen station GW6793 stands in the atmosphere, height to scale: the station 340 feet above sea level with 1 per cent of the air below it; the standard atmosphere's pressure there, 29.56 inches of mercury, and temperature, 57.8 degrees Fahrenheit; the altimeter setting of 30.28 and the station pressure it means, 29.91.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT GW6793FIG. D WHERE CITIZEN STATION GW6793 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 GW67931 PER CENT OF THE AIR BELOW IT340 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 HERE29.56 inHgSTANDARD TEMPERATURE HERE57.8 FALTIMETER SETTING, REPORTED30.28 inHgITS BAROMETER READS29.91 inHgTEMPERATURE, REPORTED67.0 FTITLECitizen station GW6793, the columnSTATION REPORT · CWOP GW6793TYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 4DATE2026-10-16IDSR-GW6793-2DRAWN AS linework on paperSOURCES FB-ENG-001, FB-ENG-003

The sun

On Oct 16 the noon sun stands 51 degrees above the horizon at 29.63 N, and the day is 11 h 18 min long. Level ground there takes 78 per cent of the noon sunlight a surface facing the sun would.

Elevation of the noon sun at Citizen station GW6793, angles true: on Oct 16 it stands 51 degrees above the horizon, against 84 at the June solstice, 60 at the equinoxes and 37 at the December solstice; the day is 11 h 18 min long.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT GW6793FIG. E THE SUN AT CITIZEN STATION GW6793ELEVATION 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 84°EQUINOXES 60°DECEMBER SOLSTICE 37°OCT 16, 51°SOUTHANGLES TRUE; THE RAYS ARE OF ONE LENGTH AND DRAW DIRECTION ONLYDAY LENGTH 11 H 18 MINLEVEL GROUND TAKES 78 PER CENT OF THE NOON SUN A FACING SURFACE WOULDLATITUDE 29.63 N; THE SUN'S DECLINATION -9.1°TITLECitizen station GW6793, the sunSTATION REPORT · CWOP GW6793TYPEELEVATIONSCALEANGLES TRUEREVAS REPORTED SHEET 3 of 4DATE2026-10-16IDSR-GW6793-3DRAWN AS linework on paperSOURCES FB-ENG-007

The full report of Citizen station GW6793, in 4 sheets, each beside the Field Book plates that explain it

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Snow on the ground

Elsewhere in Texas

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

Near Rock Island

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

Near Rock Island

River and lake gauges