Citizen station FW6820FW6820
In a volunteer observer's own ground/12.8 mi away/157 ft/56 ft below here
temp, humidity, wind, precip, pressure
Casa Blanca, Texas
Community in Starr County, Texas...STRONG NORTHERLY WINDS TODAY AND TONIGHT WILL INCREASE WILDFIRE THREAT... .A strong cold front will push south through Deep South Texas and the Rio Grande Valley today, with a secondary surge of strong northerly winds arriving late this evening through late Saturday morning. Relative humidity values are expected to drop this afternoon with little to no recovery into Saturday morning. Any wildfire that can develop will behave dangerously with erratic growth and spread due to strong winds and lower humidity. A Red Flag Warning is in effect. * WINDS...North 15 to 25 mph with gusts up to 45 mph. * RELATIVE HUMIDITY...As low as 24 percent. * IMPACTS...Any fire that can develop will behave dangerously with erratic growth and spread.
A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior.
75°
88°/71°
Clear·
Feels like 75°·Light breeze 8 mph N
Alert. A Red Flag Warning is in force for Casa Blanca until 7 AM tomorrow. Read the alert in full, and see what it means in the Field Book. Tomorrow is 13 degrees cooler: a high of 75° after 88° today.
Now. Casa Blanca is 75° and clear at 9 AM. The dew point is 67°, so the air feels oppressive. Light breeze from the north at 8 mph.
Today and tonight. It warms to about 84° by 1 PM. Tonight falls to about 59° by 8 AM, under a mostly clear sky. No rain is expected for the rest of the day. The sun is strong around midday: UV index 8, high. Unprotected skin can burn in under half an hour.
The week. The warmest day ahead is Thursday, near 92°, and the coolest tomorrow, near 75°. The days ahead look dry.
The sky tonight. The sun sets at 7:06 PM. The Moon is a waxing crescent, 34% lit, and sets at 11:35 PM. The next full Moon is Sunday, Oct 25. After dark, look for Saturn, bright in the east-southeast. A planet shines with a steady light where the stars around it twinkle. The Orionids meteor shower is active, peaking around Oct 21: at its peak, up to about 20 meteors an hour can be seen from a dark site. The sky is forecast to stay clear: a good night to look up. The day is 11 hours 33 minutes long, 1 minute shorter than yesterday.
1UV Low
27Air quality
71%Humidity
9%Cloud
Now
9:00 AM
75feels75
now, clear
Today
Oct 16
8871
24%
19mph
UV 8
Sat
Oct 17
7559
18mph
UV 8
Sun
Oct 18
7957
UV 8
Mon
Oct 19
8463
overcast
Tue
Oct 20
8967
14%
Wed
Oct 21
9170
19%
Thu
Oct 22
9270
overcast
75°
88°71°
75°59°
79°57°
84°63°
89°67°
91°70°
92°70°
As of 9:00 AM in Casa Blanca, Texas.
Air quality
The air at Casa Blanca
Index 27, good, led by fine particles. Read at 8 AM from its reporting area, Brownsville-McAllen (TX), 58 miles off.
27Good
- Fine particles (PM2.5)27Good-
- Ozone20Good-
- Coarse particles (PM10)12Good-
The days ahead
Highest moderate, today, led by fine particles. Yesterday measured 39, good.
GoodModerate
- 39YesterdayOct 15
- ModerateTodayOct 16
- GoodSatOct 17
- GoodSunOct 18
Smoke, the next 41 hours
Little smoke near the ground through Sun 1 AM: the index from smoke stays at 6 or under.
Precipitation
What has fallen at Casa Blanca
None in the last 3 days, to Fri 7 AM. 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 Casa Blanca, the next 41 hours
Visibility stays 7 miles or more through Sun 1 AM, lowest 7 miles Fri 12 PM.
F
Now, today, and the week
On the radar over Casa Blanca, TexasReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture
Weather instrument stations by state
What is measuring near here
The 6 instruments nearest Casa Blanca, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 4.3 miles away.
measured now4 instruments
Rank3,743of 4,689
MissionTCEQ-43
At a river or reservoir gauge/20.4 mi away/121 ft/92 ft below here
temp, wind, gust, humidity, pressure
At an airfield/24.5 mi away/108 ft/105 ft below here
temp, wind, gust, visibility, precip, pressure
Edinburg 17 NNE12987
At a climate reference station/37.4 mi away/64 ft/149 ft below here
temp, humidity, wind, solar, precip
measured daily2 instruments
Sullivan City 1.8 STX-HDL-71
In a volunteer observer's own ground/4.3 mi away/141 ft/72 ft below here
precip, snowfall, snow depth
Rio Grande At Rio Grande CityRGDT2
At a cooperative observer's station/12.8 mi away/174 ft/39 ft below here
snowfall, snow depth, precip, high, low
Station report
The weather at Mcallen/Miller INTL, drawn
The nearest airport reporting now, 24.5 mi from Casa Blanca, Texas. From its report of Oct 16, 2026, 8:53 AM local time: 3 of its 6 sheets.
The sky
No cloud below 12,000 ft; visibility 10 mi or more.
The air
77.0 F with a dew point of 67.0 F, 71 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 2,300 ft up.
The wind
From the north (360 degrees) at 12 mph, gusting 20 mph: force 3, a gentle breeze on the Beaufort scale. The strongest gust today was 20 mph.
What the snow tracker reads here
Every instrument in this state
-
Snow on the ground
Elsewhere in Texas
20 places, each with its own forecast and its own instruments.
Near Casa Blanca
The nearest places, each with its own forecast and the instruments nearest it.
- Buena Vistacommunity, under 1 mi
- La Paloma Ranchettescommunity, 1 mi
- East Alto Bonitocommunity, 2 mi
- Mikescommunity, 2 mi
- E. Lopezcommunity, 2 mi
- Riverenocommunity, 2 mi
- Narciso Penacommunity, 2 mi
- Pablo Penacommunity, 2 mi
- Rafael Penacommunity, 2 mi
- Longoriacommunity, 2 mi
- Quesadacommunity, 2 mi
- Ninacommunity, 2 mi