Citizen station FW6820FW6820
In a volunteer observer's own ground/9.8 mi away/157 ft/52 ft below here
temp, humidity, wind, precip, pressure
Sullivan City, Texas
City in Hidalgo County, TexasRed Flag Warning, in full · Every severe alert
...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.
72°
88°/71°
Mostly clear·
Feels like 72°·Light breeze 7 mph N
Alert. A Red Flag Warning is in force for Sullivan City until 7 AM tomorrow. 1 more alert is in force here as well. 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. Sullivan City is 72° and mostly clear at 8 AM. The dew point is 67°, so the air feels oppressive. Light breeze from the north at 7 mph.
Today and tonight. It warms to about 85° 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 7:05 PM. The Moon is a waxing crescent, 34% lit, and sets at 11:34 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 32 minutes long, 1 minute shorter than yesterday.
0UV Low
27Air quality
82%Humidity
25%Cloud
Now
8:00 AM
72feels72
now, mostly clear
Today
Oct 16
8871
23%
21mph
UV 8
Sat
Oct 17
7559
19mph
UV 8
Sun
Oct 18
7957
UV 8
Mon
Oct 19
8363
overcast
Tue
Oct 20
8967
15%
Wed
Oct 21
9170
20%
Thu
Oct 22
9270
overcast
72°
88°71°
75°59°
79°57°
83°63°
89°67°
91°70°
92°70°
As of 8:00 AM in Sullivan City, Texas.
Air quality
The air at Sullivan City
Index 27, good, led by fine particles. Read at 8 AM from its reporting area, Brownsville-McAllen (TX), 54 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 42 hours
Little smoke near the ground through Sun 1 AM: the index from smoke stays at 6 or under.
Precipitation
What has fallen at Sullivan City
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 Sullivan City, the next 42 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 Sullivan City, TexasReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture
Weather instrument stations by state
What is measuring near here
The 7 instruments nearest Sullivan City, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 1.8 miles away.
measured now5 instruments
Rank3,743of 4,689
MissionTCEQ-43
At a river or reservoir gauge/17.3 mi away/121 ft/88 ft below here
temp, wind, gust, humidity, pressure
At an airfield/21.4 mi away/108 ft/101 ft below here
temp, wind, gust, visibility, precip, pressure
Edinburg 17 NNE12987
At a climate reference station/35.3 mi away/64 ft/145 ft below here
temp, humidity, wind, solar, precip
WeslacoS2205
At a soil climate station/38.5 mi away/57 ft/152 ft below here
temp, humidity, soil temp, soil moisture
measured daily2 instruments
Sullivan City 1.8 STX-HDL-71
In a volunteer observer's own ground/1.8 mi away/141 ft/68 ft below here
precip, snowfall, snow depth
Rio Grande At Rio Grande CityRGDT2
At a cooperative observer's station/15.9 mi away/174 ft/35 ft below here
snowfall, snow depth, precip, high, low
Station report
The weather at Mcallen/Miller INTL, drawn
The nearest airport reporting now, 21.4 mi from Sullivan City, Texas. From its report of Oct 16, 2026, 7:53 AM local time: 3 of its 6 sheets.
The sky
No cloud below 12,000 ft; visibility 10 mi or more.
The air
73.0 F with a dew point of 67.0 F, 81 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 1,400 ft up.
The wind
From the north (10 degrees) at 9 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 Sullivan City
The nearest places, each with its own forecast and the instruments nearest it.
- Ninacommunity, 1 mi
- Quesadacommunity, 1 mi
- Cuevitascommunity, 2 mi
- Los Ebanoscommunity, 2 mi
- Buena Vistacommunity, 3 mi
- Casa Blancacommunity, 3 mi
- Havanacommunity, 4 mi
- La Paloma Ranchettescommunity, 4 mi
- East Alto Bonitocommunity, 5 mi
- Mikescommunity, 5 mi
- Rafael Penacommunity, 5 mi
- E. Lopezcommunity, 5 mi