Air Quality Alert
Ends in 14 h 15 min
When
Until 9:30 PM
Where
Inland Harris; Inland Brazoria; Inland Galveston; Coastal Harris; Coastal Brazoria; Coastal Galveston; Brazoria Islands; Galveston Island; Bolivar Peninsula
Issued for this forecast zone · National Weather Service Houston/Galveston TX
Full alert textHide details
AQAHGX
The Texas Commission on Environmental Quality (TCEQ) has issued an Ozone Action Day for the Houston, Galveston, and Brazoria area for Friday, October 23, 2026.
Atmospheric conditions are expected to be favorable for producing high levels of ozone pollution in the Houston, Galveston, and surrounding areas on Friday. You can help prevent ozone pollution by sharing a ride, walking, riding a bicycle, taking your lunch to work, avoiding drive through lanes, conserving energy and keeping your vehicle properly tuned.
For more information on ozone: Ozone: The Facts www.tceq.texas.gov/airquality/monops/ozonefacts.html EPA AirNow: www.airnow.gov/?city=Houston&state=TX&country=USA Take Care of Texas: www.takecareoftexas.org/conservation-tips/keep-our-air-clean
Areas: Inland Harris; Inland Brazoria; Inland Galveston; Coastal Harris; Coastal Brazoria; Coastal Galveston; Brazoria Islands; Galveston Island; Bolivar Peninsula
See it on weather.gov (opens in a new tab)

Observed 6:50 AM CDT at KLBX

Sweeny, TX weather

Clear and 54°12°.

Forecasts agree

Now 54°12°

Clear

Wind: 5 mph7 km/h; From the north. About 5 mph8 km/h through 7 PM
Dew point: 54°12°; Comfortable
Humidity: 100%; Air 54°12°, dew point 54°12° · fog or dew likely
UV index: 0Low; High 1–3 PM · peak 6
Pressure: 30.12 inHg1020 hPa; Rising slowly · +0.02 inHg+0.7 hPa in 3 h

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

Good hours for

Above 70°21° today by 10 AM
High 85°29° today at 2 PM
Below 70°21° tonight after 9 PM

This morningUp to 78°26° by 11 AM · Clear
This afternoonNear 83°28° · Clear
TonightDown to 61°16° by 3 AM · Clear
Tomorrow morningUp to 82°28° by 11 AM · Partly cloudy
Tomorrow afternoonNear 85°29° · Partly cloudy
Tomorrow nightDown to 63°17° by 5 AM · Partly cloudy

Hourly forecast, next 48 hours, in the place's local time
Hour	Conditions	Temperature	Feels like	Precipitation	Wind	Humidity	Cloud cover	UV index
Fri 7a	Sunny	57°14° (likely 52°11° to 59°15°)	57°14°	0%	5 mph8 km/h from N, gusts 8 mph13 km/h	93%	40%	0
Fri 8a	Sunny	59°15° (likely 53°12° to 62°17°)	59°15°	0%	5 mph8 km/h from N, gusts 8 mph13 km/h	90%	30%	0
Fri 9a	Sunny	66°19° (likely 61°16° to 68°20°)	66°19°	0%	5 mph8 km/h from NE, gusts 10 mph16 km/h	73%	10%	1
Fri 10a	Sunny	74°23° (likely 70°21° to 74°23°)	74°23°	0%	5 mph8 km/h from NE, gusts 9 mph15 km/h	57%	0%	2
Fri 11a	Sunny	78°26° (likely 77°25° to 79°26°)	78°26°	0%	5 mph8 km/h from E, gusts 8 mph14 km/h	50%	0%	4
Fri 12p	Sunny	82°28° (likely 81°27° to 82°28°)	82°28°	0%	5 mph8 km/h from E, gusts 11 mph18 km/h	43%	3%	5
Fri 1p	Sunny	84°29° (likely 82°28° to 84°29°)	83°28°	0%	5 mph8 km/h from E, gusts 11 mph18 km/h	37%	8%	6
Fri 2p	Sunny	85°29° (likely 83°28° to 85°29°)	83°28°	0%	5 mph8 km/h from E, gusts 11 mph17 km/h	35%	8%	6
Fri 3p	Sunny	85°29° (likely 83°28° to 86°30°)	83°28°	0%	5 mph8 km/h from SE, gusts 12 mph19 km/h	35%	9%	5
Fri 4p	Sunny	85°29° (likely 82°28° to 85°29°)	83°28°	0%	5 mph8 km/h from SE, gusts 13 mph21 km/h	35%	10%	3
Fri 5p	Sunny	83°28° (likely 80°27° to 83°28°)	82°28°	0%	5 mph8 km/h from SE, gusts 13 mph21 km/h	38%	4%	1
Fri 6p	Sunny	79°26° (likely 76°24° to 80°27°)	79°26°	0%	5 mph8 km/h from SE, gusts 14 mph22 km/h	47%	0%	0
Fri 7p	Clear	74°23° (likely 72°22° to 75°24°)	74°23°	0%	5 mph8 km/h from SE, gusts 12 mph20 km/h	59%	0%	0
Fri 8p	Clear	70°21° (likely 69°21° to 71°22°)	70°21°	0%	5 mph8 km/h from SE, gusts 9 mph15 km/h	71%	0%	0
Fri 9p	Clear	67°19° (likely 67°19° to 69°21°)	67°19°	0%	0 mph0 km/h, gusts 9 mph15 km/h	81%	0%	0
Fri 10p	Clear	64°18° (likely 64°18° to 67°19°)	64°18°	0%	5 mph8 km/h from E, gusts 9 mph15 km/h	90%	4%	0
Fri 11p	Clear	63°17° (likely 63°17° to 67°19°)	63°17°	0%	0 mph0 km/h, gusts 9 mph14 km/h	93%	5%	0
Sat 12a	Clear	62°17° (likely 62°17° to 66°19°)	62°17°	0%	0 mph0 km/h, gusts 8 mph13 km/h	97%	6%	0
Sat 1a	Clear	62°17° (likely 62°17° to 66°19°)	62°17°	0%	0 mph0 km/h, gusts 7 mph12 km/h	97%	9%	0
Sat 2a	Clear	62°17° (likely 62°17° to 66°19°)	62°17°	0%	0 mph0 km/h, gusts 6 mph9 km/h	97%	16%	0
Sat 3a	Mostly clear	61°16° (likely 60°16° to 66°19°)	61°16°	0%	0 mph0 km/h, gusts 5 mph7 km/h	100%	27%	0
Sat 4a	Mostly clear	61°16° (likely 60°16° to 66°19°)	61°16°	0%	0 mph0 km/h, gusts 4 mph7 km/h	100%	40%	0
Sat 5a	Mostly clear	61°16° (likely 59°15° to 66°19°)	61°16°	0%	0 mph0 km/h, gusts 5 mph8 km/h	100%	31%	0
Sat 6a	Mostly clear	61°16° (likely 60°16° to 66°19°)	61°16°	0%	0 mph0 km/h, gusts 6 mph10 km/h	100%	34%	0
Sat 7a	Cloudy	61°16° (likely 61°16° to 66°19°)	61°16°	0%	5 mph8 km/h from NE, gusts 8 mph13 km/h	100%	71%	0
Sat 8a	Partly sunny	63°17° (likely 62°17° to 68°20°)	63°17°	0%	5 mph8 km/h from NE, gusts 9 mph15 km/h	93%	61%	0
Sat 9a	Sunny	71°22° (likely 67°19° to 73°23°)	71°22°	0%	5 mph8 km/h from E, gusts 10 mph16 km/h	76%	39%	1
Sat 10a	Sunny	79°26° (likely 74°23° to 79°26°)	79°26°	0%	5 mph8 km/h from E, gusts 9 mph14 km/h	58%	34%	2
Sat 11a	Mostly sunny	82°28° (likely 79°26° to 82°28°)	83°28°	0%	10 mph16 km/h from E, gusts 15 mph24 km/h	53%	31%	4
Sat 12p	Partly sunny	85°29° (likely 82°28° to 85°29°)	86°30°	0%	10 mph16 km/h from SE, gusts 15 mph23 km/h	46%	44%	5
Sat 1p	Partly sunny	86°30° (likely 82°28° to 86°30°)	86°30°	0%	10 mph16 km/h from SE, gusts 15 mph23 km/h	45%	58%	6
Sat 2p	Cloudy	86°30° (likely 83°28° to 86°30°)	86°30°	0%	10 mph16 km/h from E, gusts 15 mph24 km/h	43%	65%	6
Sat 3p	Cloudy	86°30° (likely 83°28° to 86°30°)	86°30°	0%	15 mph24 km/h from E, gusts 15 mph25 km/h	43%	65%	5
Sat 4p	Partly sunny	85°29° (likely 82°28° to 85°29°)	85°29°	0%	10 mph16 km/h from E, gusts 16 mph26 km/h	45%	68%	4
Sat 5p	Partly sunny	84°29° (likely 80°27° to 84°29°)	84°29°	0%	10 mph16 km/h from E, gusts 17 mph27 km/h	46%	36%	3
Sat 6p	Sunny	81°27° (likely 77°25° to 81°27°)	82°28°	0%	10 mph16 km/h from E, gusts 17 mph27 km/h	53%	27%	1
Sat 7p	Clear	77°25° (likely 74°23° to 77°25°)	77°25°	0%	5 mph8 km/h from E, gusts 16 mph27 km/h	62%	18%	0
Sat 8p	Clear	73°23° (likely 71°22° to 73°23°)	73°23°	0%	5 mph8 km/h from E, gusts 12 mph19 km/h	71%	20%	0
Sat 9p	Clear	71°22° (likely 70°21° to 72°22°)	71°22°	0%	5 mph8 km/h from E, gusts 12 mph20 km/h	76%	16%	0
Sat 10p	Mostly clear	69°21° (likely 68°20° to 71°22°)	69°21°	0%	5 mph8 km/h from E, gusts 13 mph21 km/h	81%	21%	0
Sat 11p	Clear	68°20° (likely 67°19° to 71°22°)	68°20°	0%	5 mph8 km/h from E, gusts 12 mph20 km/h	81%	27%	0
Sun 12a	Clear	67°19° (likely 66°19° to 70°21°)	67°19°	0%	5 mph8 km/h from E, gusts 10 mph17 km/h	84%	25%	0
Sun 1a	Mostly clear	67°19° (likely 65°18° to 69°21°)	67°19°	0%	5 mph8 km/h from E, gusts 10 mph16 km/h	84%	35%	0
Sun 2a	Partly cloudy	66°19° (likely 66°19° to 69°21°)	66°19°	0%	5 mph8 km/h from E, gusts 9 mph14 km/h	84%	17%	0
Sun 3a	Partly cloudy	65°18° (likely 64°18° to 69°21°)	65°18°	0%	5 mph8 km/h from E, gusts 9 mph14 km/h	84%	52%	0
Sun 4a	Partly cloudy	64°18° (likely 64°18° to 68°20°)	64°18°	0%	5 mph8 km/h from E, gusts 8 mph12 km/h	87%	69%	0
Sun 5a	Cloudy	63°17° (likely 63°17° to 68°20°)	63°17°	0%	5 mph8 km/h from E, gusts 10 mph16 km/h	90%	76%	0
Sun 6a	Cloudy	63°17° (likely 63°17° to 68°20°)	63°17°	0%	5 mph8 km/h from E, gusts 10 mph15 km/h	90%	74%	0

Days ahead

Shaded: typical range for these dates (1991–2020)

Today, Oct 23. Sunny. High 85°29°, low 61°16°. Typical 82°28° / 60°16°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Sunny, 59°15°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 85°29°
  Dry
3. Evening
  6 PM–midnight
  Clear, 70°21°
  Dry
4. Overnight
  midnight–6 AM
  Mostly clear, 61°16°
  Dry
Official NWS forecast
Today: Sunny, with a high near 85. East wind around 5 mph.
Tonight: Mostly clear, with a low around 61. East wind 0 to 5 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
83°28°–86°30°
Low, likely
52°11°–61°16°
Typical high / low
82°28° / 60°16°
Wind
10 mph16 km/h, gusts 19 mph31 km/h
UV peak
6
Tomorrow, Oct 24. Cloudy. High 86°30°, low 63°17°. Typical 81°27° / 59°15°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Sunny, 63°17°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 86°30°
  Dry
3. Evening
  6 PM–midnight
  Clear, 73°23°
  Dry
4. Overnight
  midnight–6 AM
  Partly cloudy, 63°17°
  Dry
Official NWS forecast
Day: Mostly sunny, with a high near 86. East wind 0 to 15 mph, with gusts as high as 20 mph.
Night: Mostly clear, with a low around 63. East wind 5 to 10 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
83°28°–86°30°
Low, likely
59°15°–65°18°
Typical high / low
81°27° / 59°15°
Wind
11 mph18 km/h, gusts 24 mph38 km/h
UV peak
6
Sunday, Oct 25. Cloudy. High 82°28°, low 61°16°. Typical 81°27° / 59°15°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Cloudy, 68°20°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 80°27°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 69°20°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 66°19°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Partly sunny. High near 82, with temperatures falling to around 78 in the afternoon. East wind 5 to 10 mph, with gusts as high as 20 mph.
Night: Mostly cloudy, with a low around 61.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
80°27°–82°28°
Low, likely
61°16°–67°19°
Typical high / low
81°27° / 59°15°
Wind
15 mph25 km/h, gusts 24 mph38 km/h
UV peak
6
Monday, Oct 26. Mostly cloudy. High 82°28°, low 62°17°. Typical 81°27° / 58°14°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 67°19°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 81°27°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 71°21°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 66°19°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Partly sunny, with a high near 82.
Night: Mostly cloudy, with a low around 62.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
80°27°–82°28°
Low, likely
62°17°–66°19°
Typical high / low
81°27° / 58°14°
Wind
15 mph24 km/h, gusts 25 mph40 km/h
UV peak
4
Tuesday, Oct 27. Cloudy. High 82°28°, low 61°16°. Typical 80°27° / 58°14°. Rain 0.03 in0.8 mm, 30% chance. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 68°20°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 80°27°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 72°22°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 68°20°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: A chance of rain showers after 7am. Partly sunny, with a high near 82. Chance of precipitation is 30%.
Night: A chance of rain showers before 7pm. Partly cloudy, with a low around 61. Chance of precipitation is 30%.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
79°26°–83°28°
Low, likely
61°16°–68°20°
Typical high / low
80°27° / 58°14°
Wind
10 mph16 km/h, gusts 19 mph30 km/h
UV peak
3
Wednesday, Oct 28. Drizzle. High 83°28°, low 60°16°. Typical 80°27° / 58°14°. Rain 0.1 in2.5 mm, 20% chance. Forecasts agree.
1. Morning
  6 AM–noon
  Cloudy, 69°21°
  Dry
2. Afternoon
  noon–6 PM
  Drizzle, 81°27°
  20% chance · 0.04 in0.9 mm
3. Evening
  6 PM–midnight
  Mostly clear, 73°23°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 66°19°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: A slight chance of rain showers after 7am. Sunny, with a high near 83. Chance of precipitation is 20%.
Night: A slight chance of rain showers before 7pm. Mostly clear, with a low around 60. Chance of precipitation is 20%.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
80°27°–83°28°
Low, likely
60°16°–69°21°
Typical high / low
80°27° / 58°14°
Wind
15 mph25 km/h, gusts 23 mph37 km/h
UV peak
5
Thursday, Oct 29. Partly sunny. High 83°28°, low 62°17°. Typical 80°27° / 57°14°. Rain 0.22 in5.6 mm, 30% chance. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 69°20°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 81°27°
  20% chance · 0.1 in2.5 mm
3. Evening
  6 PM–midnight
  Mostly clear, 72°22°
  20% chance · 0.05 in1.2 mm
4. Overnight
  midnight–6 AM
  Cloudy, 67°19°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: A chance of rain showers after 1pm. Mostly sunny, with a high near 83. Chance of precipitation is 30%.
Night: A chance of rain showers before 7pm. Partly cloudy, with a low around 62.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
79°26°–83°28°
Low, likely
62°17°–69°21°
Typical high / low
80°27° / 57°14°
Wind
13 mph21 km/h, gusts 25 mph40 km/h
UV peak
1
Friday, Oct 30. Cloudy. High 79°26°, low 68°20°. Typical 79°26° / 57°14°. Rain 0.2 in5.1 mm, 20% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Drizzle, 70°21°
  Dry
2. Afternoon
  noon–6 PM
  Drizzle, 78°26°
  20% chance · 0.03 in0.8 mm
3. Evening
  6 PM–midnight
  Cloudy, 73°23°
  20% chance · 0.02 in0.5 mm
4. Overnight
  midnight–6 AM
  Cloudy, 71°21°
  30% chance · 0.1 in2.5 mm
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
74°23°–85°29°
Low, likely
65°18°–71°22°
Typical high / low
79°26° / 57°14°
Wind
12 mph19 km/h, gusts 26 mph41 km/h
Saturday, Oct 31. Showers. High 77°25°, low 69°21°. Typical 79°26° / 57°14°. Rain 0.44 in11 mm, 40% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 71°22°
  40% chance · 0.07 in1.8 mm
2. Afternoon
  noon–6 PM
  Drizzle, 73°23°
  40% chance · 0.3 in7.6 mm
3. Evening
  6 PM–midnight
  Drizzle, 70°21°
  40% chance · 0.01 in0.3 mm
4. Overnight
  midnight–6 AM
  Clear, 67°19°
  20% chance · 0.01 in0.3 mm
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
72°22°–81°27°
Low, likely
66°19°–71°22°
Typical high / low
79°26° / 57°14°
Wind
12 mph19 km/h, gusts 21 mph34 km/h
UV peak
2
Sunday, Nov 1. Partly sunny. High 81°27°, low 68°20°. Typical 79°26° / 56°13°. Rain 0.17 in4.3 mm, 20% chance. Forecasts agree.
1. Morning
  6 AM–noon
  Sunny, 68°20°
  Dry
2. Afternoon
  noon–6 PM
  Drizzle, 78°26°
  20% chance · 0.08 in2.1 mm
3. Evening
  6 PM–midnight
  Clear, 71°22°
  20% chance
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
80°27°–81°27°
Low, likely
64°18°–71°22°
Typical high / low
79°26° / 56°13°
Wind
10 mph16 km/h
UV peak
4

10 days15 days30 days

The outlook

Today
Dry, high 85°, low 61°.
Tomorrow
Dry, high 86°, low 63°.
Sunday
Dry, high 82°, low 61°, cooling off.
Rest of week
Highs 77–83°; chance of precipitation on Saturday.

Want the meteorologists’ reasoning? Read the NWS forecast discussion (HGX) (opens in a new tab)

What changed since yesterday

No meaningful changes from yesterday’s forecast.

Radar

Radar data: NOAA MRMS, rendered by forecast.blue

Radar loads when scrolled into view

Full-screen radar

Rivers

NOAA river gauges within 25 mi

Brazos River near West Columbia

8.8 mi

Below flood stage

Level: 2.2 ft
Flow: 4,470 cfs

Forecast peak 2.7 ft Sun 1 AM

Reading from Fri 5:30 AM · NWS gauge page

Colorado River (TX) near Bay City

20 mi

Below flood stage

Level: 3.1 ft
Flow: 424 cfs

Forecast peak 3.7 ft Fri 8 AM

Reading from Fri 5:15 AM · NWS gauge page

Brazos River near Rosharon

22 mi

Below flood stage

Level: 4.5 ft
Flow: 449 cfs

Forecast peak 5.0 ft Sun 1 PM

Reading from Fri 5 AM · NWS gauge page

San Bernard River near Old Ocean

4.7 mi

Below flood stage

Level: 2.0 ft
Flow: 2,070 cfs

Reading from Fri 4:45 AM · NWS gauge page

For your home

What this week’s weather means for heating, cooling, pipes and fresh air.

Cooling this week

About 51% less cooling than a typical week.

This week 16Typical 32

Cooling degree days, base 65°F

Comfort

Dry air outside (dew point 54°F).

Open the windows?

Today, 9:00 AM–11:00 AM

Good stretch to open the windows (air quality forecast not available for part of this window).

Is this typical?

Angleton Lake Jackson Brazoria County Airport · official normals 1991–2020 · records 1998–2026

Oct 23, today vs a typical year

Today’s expected high is 3°2° warmer than typical.

Last 7 days vs normal

On average 4°2° colder than normal (daily mean temperature).

−10°−6°SatOct 17
−7°−4°SunOct 18
−2°−1°MonOct 19
−2°−1°TueOct 20
−1°WedOct 21
−1°ThuOct 22
—FriOct 23

Sweeny weather by month: normals, records, snow and freeze dates

Sun & moon

Sun

Daylight: 11 h 15 min; Losing 1 min 34 s a day; shortest Dec 21, 58 min less
Golden hour: 6:12–6:59 PM; Morning 7:14–8:01 AM
Blue hour: 6:59–7:08 PM; Morning 7:05–7:14 AM; first light 7:05 AM

Stars tonight? Fair

Mostly clear 7:08 PM–3 AM, but the moon is 95% lit and up.

Moon

Waxing gibbous

91% lit · growing

Today: sets 4:50 AM · rises 5:07 PM
Full moon: Oct 25
New moon: Nov 9

Looking west from Sweeny. A level horizon.Skyline from USGS elevation data, heights drawn up to 6× taller. Sky, sun and moon as they are now.

1 active weather alert

Air Quality Alert

Sweeny, TX weather

Next 2 hours

Next 48 hours

Days ahead

The outlook

Today

Tomorrow

Sunday

Rest of week

What changed since yesterday

Radar

Rivers

Brazos River near West Columbia

Colorado River (TX) near Bay City

Brazos River near Rosharon

San Bernard River near Old Ocean

For your home

Cooling this week

Comfort

Open the windows?

Is this typical?

Oct 23, today vs a typical year

Last 7 days vs normal

Sun & moon

Sun

Stars tonight? Fair

Moon