Air Quality Alert
Ends in 3 h 14 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 5:55 PM CDT at KLVJ

Alvin, TX weather

Sunny and 82°28°.

Forecasts agree

Now 82°28°

Sunny

Wind: 6 mph9 km/h; From the south. Up to 6 mph9 km/h through 6 AM
Dew point: 48°9°; Comfortable · up to 58°14° by 7 PM (a little sticky)
UV tomorrow: 6High; High 1–3 PM · peak 6
Air quality (notable): 136Unhealthy for sensitive groups; Ozone · tomorrow moderate
Pressure: 30.09 inHg1019 hPa; Steady over the last 3 h

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

Good hours for

Below 70°21° tonight after 9 PM
Low 63°17° tomorrow at 7 AM
Above 70°21° tomorrow by 9 AM
High 85°29° tomorrow at 2 PM

TonightDown to 64°18° by 1 AM · Clear
Tomorrow morningUp to 81°27° by 11 AM · Clear
Tomorrow afternoonNear 83°28° · Clear
Tomorrow nightDown to 65°18° by 2 AM · Partly cloudy
Sunday morningUp to 79°26° by 11 AM · Mostly cloudy
Sunday afternoonNear 79°26° · 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 6p	Sunny	81°27° (likely 77°25° to 82°28°)	81°27°	0%	5 mph8 km/h from SE, gusts 11 mph17 km/h	41%	0%	1
Fri 7p	Clear	77°25° (likely 72°22° to 77°25°)	77°25°	0%	5 mph8 km/h from SE, gusts 10 mph16 km/h	52%	0%	0
Fri 8p	Clear	71°22° (likely 68°20° to 72°22°)	71°22°	0%	5 mph8 km/h from SE, gusts 9 mph14 km/h	66%	0%	0
Fri 9p	Clear	69°21° (likely 66°19° to 69°21°)	69°21°	0%	5 mph8 km/h from SE, gusts 8 mph13 km/h	76%	0%	0
Fri 10p	Clear	67°19° (likely 64°18° to 67°19°)	67°19°	0%	5 mph8 km/h from SE, gusts 7 mph12 km/h	84%	0%	0
Fri 11p	Clear	66°19° (likely 63°17° to 66°19°)	66°19°	0%	0 mph0 km/h, gusts 7 mph11 km/h	87%	2%	0
Sat 12a	Clear	65°18° (likely 62°17° to 65°18°)	65°18°	0%	0 mph0 km/h, gusts 6 mph10 km/h	93%	1%	0
Sat 1a	Clear	64°18° (likely 61°16° to 65°18°)	64°18°	0%	0 mph0 km/h, gusts 6 mph9 km/h	97%	2%	0
Sat 2a	Clear	64°18° (likely 61°16° to 65°18°)	64°18°	0%	0 mph0 km/h, gusts 6 mph9 km/h	93%	4%	0
Sat 3a	Clear	64°18° (likely 61°16° to 65°18°)	64°18°	0%	0 mph0 km/h, gusts 6 mph9 km/h	93%	7%	0
Sat 4a	Clear	64°18° (likely 60°16° to 64°18°)	64°18°	0%	0 mph0 km/h, gusts 6 mph10 km/h	93%	8%	0
Sat 5a	Clear	64°18° (likely 60°16° to 64°18°)	64°18°	0%	0 mph0 km/h, gusts 6 mph9 km/h	93%	11%	0
Sat 6a	Clear	64°18° (likely 60°16° to 64°18°)	64°18°	0%	0 mph0 km/h, gusts 5 mph8 km/h	90%	16%	0
Sat 7a	Mostly sunny	63°17° (likely 60°16° to 65°18°)	63°17°	0%	5 mph8 km/h from NE, gusts 6 mph10 km/h	97%	20%	0
Sat 8a	Mostly sunny	65°18° (likely 61°16° to 66°19°)	65°18°	0%	5 mph8 km/h from NE, gusts 7 mph11 km/h	93%	21%	0
Sat 9a	Sunny	70°21° (likely 67°19° to 71°22°)	70°21°	0%	5 mph8 km/h from NE, gusts 7 mph12 km/h	84%	11%	1
Sat 10a	Sunny	78°26° (likely 75°24° to 78°26°)	78°26°	0%	5 mph8 km/h from E, gusts 10 mph16 km/h	67%	17%	2
Sat 11a	Sunny	81°27° (likely 78°26° to 81°27°)	83°28°	0%	10 mph16 km/h from E, gusts 13 mph21 km/h	58%	25%	4
Sat 12p	Sunny	83°28° (likely 81°27° to 84°29°)	85°29°	0%	10 mph16 km/h from E, gusts 14 mph22 km/h	55%	22%	5
Sat 1p	Mostly sunny	83°28° (likely 82°28° to 84°29°)	84°29°	0%	15 mph24 km/h from E, gusts 14 mph23 km/h	53%	25%	6
Sat 2p	Sunny	85°29° (likely 82°28° to 85°29°)	86°30°	0%	15 mph24 km/h from E, gusts 15 mph24 km/h	48%	27%	6
Sat 3p	Sunny	83°28° (likely 82°28° to 84°29°)	84°29°	0%	15 mph24 km/h from E, gusts 16 mph25 km/h	51%	27%	5
Sat 4p	Sunny	83°28° (likely 80°27° to 83°28°)	84°29°	0%	15 mph24 km/h from E, gusts 16 mph25 km/h	51%	30%	4
Sat 5p	Sunny	82°28° (likely 79°26° to 82°28°)	83°28°	0%	15 mph24 km/h from E, gusts 15 mph25 km/h	53%	11%	3
Sat 6p	Sunny	79°26° (likely 76°24° to 79°26°)	79°26°	0%	10 mph16 km/h from E, gusts 15 mph24 km/h	60%	13%	1
Sat 7p	Clear	75°24° (likely 73°23° to 75°24°)	75°24°	0%	10 mph16 km/h from E, gusts 15 mph24 km/h	71%	12%	0
Sat 8p	Clear	73°23° (likely 70°21° to 73°23°)	73°23°	0%	10 mph16 km/h from E, gusts 11 mph17 km/h	76%	18%	0
Sat 9p	Clear	71°22° (likely 68°20° to 71°22°)	71°22°	0%	10 mph16 km/h from E, gusts 11 mph18 km/h	81%	15%	0
Sat 10p	Clear	70°21° (likely 67°19° to 71°22°)	70°21°	0%	5 mph8 km/h from E, gusts 11 mph18 km/h	84%	15%	0
Sat 11p	Mostly clear	67°19° (likely 66°19° to 70°21°)	67°19°	0%	5 mph8 km/h from E, gusts 10 mph16 km/h	90%	21%	0
Sun 12a	Mostly clear	67°19° (likely 65°18° to 69°21°)	67°19°	0%	5 mph8 km/h from E, gusts 10 mph16 km/h	87%	44%	0
Sun 1a	Partly cloudy	67°19° (likely 64°18° to 68°20°)	67°19°	0%	5 mph8 km/h from E, gusts 10 mph15 km/h	87%	36%	0
Sun 2a	Mostly clear	65°18° (likely 63°17° to 68°20°)	65°18°	0%	5 mph8 km/h from E, gusts 9 mph14 km/h	90%	25%	0
Sun 3a	Mostly clear	67°19° (likely 62°17° to 68°20°)	67°19°	0%	5 mph8 km/h from E, gusts 7 mph11 km/h	81%	21%	0
Sun 4a	Mostly clear	67°19° (likely 62°17° to 68°20°)	67°19°	0%	5 mph8 km/h from E, gusts 7 mph11 km/h	81%	70%	0
Sun 5a	Mostly clear	67°19° (likely 61°16° to 67°19°)	67°19°	0%	5 mph8 km/h from E, gusts 8 mph13 km/h	81%	77%	0
Sun 6a	Cloudy	67°19° (likely 61°16° to 67°19°)	67°19°	0%	5 mph8 km/h from E, gusts 9 mph14 km/h	81%	82%	0
Sun 7a	Cloudy	67°19° (likely 61°16° to 67°19°)	67°19°	0%	5 mph8 km/h from E, gusts 9 mph14 km/h	81%	84%	0
Sun 8a	Cloudy	67°19° (likely 61°16° to 69°21°)	67°19°	0%	10 mph16 km/h from E, gusts 9 mph15 km/h	78%	85%	0
Sun 9a	Cloudy	71°22° (likely 68°20° to 72°22°)	71°22°	0%	10 mph16 km/h from E, gusts 11 mph18 km/h	71%	84%	1
Sun 10a	Cloudy	76°24° (likely 74°23° to 76°24°)	76°24°	0%	15 mph24 km/h from E, gusts 18 mph28 km/h	60%	86%	2
Sun 11a	Cloudy	79°26° (likely 76°24° to 79°26°)	79°26°	0%	15 mph24 km/h from E, gusts 18 mph29 km/h	52%	85%	3
Sun 12p	Cloudy	80°27° (likely 77°25° to 80°27°)	81°27°	0%	15 mph24 km/h from E, gusts 18 mph29 km/h	49%	90%	4
Sun 1p	Cloudy	80°27° (likely 78°26° to 80°27°)	81°27°	0%	15 mph24 km/h from E, gusts 18 mph29 km/h	47%	93%	5
Sun 2p	Partly sunny	81°27° (likely 78°26° to 81°27°)	81°27°	0%	15 mph24 km/h from E, gusts 18 mph29 km/h	44%	86%	5
Sun 3p	Cloudy	81°27° (likely 77°25° to 81°27°)	81°27°	0%	15 mph24 km/h from E, gusts 17 mph28 km/h	41%	87%	5
Sun 4p	Cloudy	79°26° (likely 76°24° to 79°26°)	79°26°	0%	10 mph16 km/h from E, gusts 17 mph27 km/h	44%	83%	3
Sun 5p	Cloudy	77°25° (likely 74°23° to 77°25°)	77°25°	0%	10 mph16 km/h from E, gusts 16 mph26 km/h	45%	84%	2

Days ahead

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

Today, Oct 23. Sunny. High 85°29°, low 62°17°. Typical 80°27° / 60°16°. Dry. Forecasts agree.
1. Evening
  6 PM–midnight
  Clear, 71°22°
  Dry
2. Overnight
  midnight–6 AM
  Clear, 64°18°
  Dry
Official NWS forecast
Tonight: Mostly clear, with a low around 62. East wind 0 to 5 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
84°29°–86°30°
Low, likely
54°12°–62°17°
Typical high / low
80°27° / 60°16°
Wind
9 mph14 km/h, gusts 17 mph27 km/h
UV peak
6
Tomorrow, Oct 24. Mostly sunny. High 85°29°, low 65°18°. Typical 79°26° / 60°16°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Sunny, 65°18°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 85°29°
  Dry
3. Evening
  6 PM–midnight
  Clear, 73°23°
  Dry
4. Overnight
  midnight–6 AM
  Mostly clear, 65°18°
  Dry
Official NWS forecast
Day: Sunny. High near 85, with temperatures falling to around 82 in the afternoon. East wind 0 to 15 mph, with gusts as high as 20 mph.
Night: Mostly clear, with a low around 65. East wind 5 to 10 mph, with gusts as high as 20 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
82°28°–85°29°
Low, likely
60°16°–65°18°
Typical high / low
79°26° / 60°16°
Wind
12 mph19 km/h, gusts 22 mph35 km/h
UV peak
6
Sunday, Oct 25. Cloudy. High 81°27°, low 64°18°. Typical 79°26° / 60°16°. Dry. Forecasts 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, 67°20°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 65°18°
  Dry
Official NWS forecast
Day: Mostly sunny. High near 81, with temperatures falling to around 77 in the afternoon. East wind 5 to 15 mph, with gusts as high as 20 mph.
Night: Mostly cloudy, with a low around 64. East wind 0 to 10 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
78°26°–81°27°
Low, likely
62°17°–67°19°
Typical high / low
79°26° / 60°16°
Wind
14 mph23 km/h, gusts 23 mph36 km/h
UV peak
5
Monday, Oct 26. Cloudy. High 81°27°, low 65°18°. Typical 79°26° / 59°15°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Mostly sunny, 64°18°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 80°27°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 70°21°
  Dry
4. Overnight
  midnight–6 AM
  Partly cloudy, 65°18°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Partly sunny, with a high near 81.
Night: Mostly cloudy, with a low around 65.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
79°26°–81°27°
Low, likely
62°17°–65°18°
Typical high / low
79°26° / 59°15°
Wind
15 mph23 km/h, gusts 21 mph34 km/h
UV peak
6
Tuesday, Oct 27. Mostly cloudy. High 81°27°, low 64°18°. Typical 78°26° / 59°15°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Cloudy, 67°20°
  Dry
2. Afternoon
  noon–6 PM
  Drizzle, 80°27°
  Dry
3. Evening
  6 PM–midnight
  Mostly clear, 71°22°
  Dry
4. Overnight
  midnight–6 AM
  Partly cloudy, 69°20°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Partly sunny, with a high near 81.
Night: Mostly cloudy, with a low around 64.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
79°26°–81°27°
Low, likely
63°17°–66°19°
Typical high / low
78°26° / 59°15°
Wind
13 mph21 km/h, gusts 19 mph31 km/h
UV peak
5
Wednesday, Oct 28. Partly sunny. High 82°28°, low 64°18°. Typical 78°26° / 59°15°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 71°21°
  Dry
2. Afternoon
  noon–6 PM
  Mostly sunny, 82°28°
  Dry
3. Evening
  6 PM–midnight
  Clear, 71°22°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 65°18°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: A slight chance of rain showers after 1pm. Mostly sunny, with a high near 82. Chance of precipitation is 20%.
Night: A slight chance of rain showers before 7pm. Partly cloudy, with a low around 64. Chance of precipitation is 20%.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
80°27°–83°28°
Low, likely
64°18°–69°21°
Typical high / low
78°26° / 59°15°
Wind
15 mph24 km/h, gusts 22 mph36 km/h
UV peak
5
Thursday, Oct 29. Partly sunny. High 83°28°, low 64°18°. Typical 78°26° / 58°14°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 68°20°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 82°28°
  Dry
3. Evening
  6 PM–midnight
  Partly cloudy, 71°22°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 65°18°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: A slight chance of rain showers after 1pm. Mostly sunny, with a high near 83. Chance of precipitation is 20%.
Night: A slight chance of rain showers before 7pm. Partly cloudy, with a low around 64. Chance of precipitation is 20%.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
80°27°–84°29°
Low, likely
61°16°–68°20°
Typical high / low
78°26° / 58°14°
Wind
16 mph26 km/h, gusts 24 mph39 km/h
UV peak
5
Friday, Oct 30. Showers. High 82°28°, low 67°19°. Typical 77°25° / 58°14°. Rain 0.11 in2.8 mm, 30% chance. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 68°20°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 80°27°
  20% chance
3. Evening
  6 PM–midnight
  Cloudy, 73°23°
  20% chance
4. Overnight
  midnight–6 AM
  Drizzle, 69°21°
  20% chance · 0.03 in0.8 mm
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.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
78°26°–82°28°
Low, likely
65°18°–68°20°
Typical high / low
77°25° / 58°14°
Wind
14 mph23 km/h, gusts 25 mph40 km/h
UV peak
2
Saturday, Oct 31. Drizzle. High 82°28°, low 70°21°. Typical 77°25° / 58°14°. Rain 0.32 in8.1 mm, 30% chance. Mostly agree.
1. Morning
  6 AM–noon
  Drizzle, 72°22°
  30% chance · 0.03 in0.8 mm
2. Afternoon
  noon–6 PM
  Drizzle, 82°28°
  30% chance · 0.17 in4.4 mm
3. Evening
  6 PM–midnight
  Drizzle, 74°23°
  30% chance · 0.13 in3.2 mm
4. Overnight
  midnight–6 AM
  Clear, 72°22°
  Dry
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.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
80°27°–86°30°
Low, likely
67°19°–72°22°
Typical high / low
77°25° / 58°14°
Wind
15 mph24 km/h, gusts 21 mph34 km/h
UV peak
5
Sunday, Nov 1. Drizzle. High 83°28°, low 72°22°. Typical 77°25° / 57°14°. Rain 0.21 in5.3 mm, 30% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Drizzle, 74°24°
  Dry
2. Afternoon
  noon–6 PM
  Drizzle, 83°28°
  30% chance · 0.09 in2.4 mm
3. Evening
  6 PM–midnight
  Drizzle, 76°25°
  20% chance · 0.02 in0.6 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
79°26°–86°30°
Low, likely
72°22°–73°23°
Typical high / low
77°25° / 57°14°
Wind
18 mph29 km/h
UV peak
5

10 days15 days30 days

The outlook

Today
Dry, high 85°, low 62°.
Tomorrow
Dry, high 85°, low 65°.
Sunday
Dry, high 81°, low 64°, cooling off.
Rest of week
Mostly dry, highs 81–83°.

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 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 PM · NWS gauge page

Mustang Bayou at SH 6 near Alvin

2.6 mi

Below flood stage

Level: 32.2 ft

Reading from Fri 5:10 PM · NWS gauge page

Dickinson Bayou at SH 517 near Alvin

3.4 mi

Below flood stage

Level: 12.1 ft

Reading from Fri 5:15 PM · NWS gauge page

Clear Creek at Friendswood

7.0 mi

Below flood stage

Level: 1.4 ft
Flow: 1,560 cfs

Reading from Fri 5:15 PM · NWS gauge page

For your home

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

Cooling this week

About 48% less cooling than a typical week.

This week 15Typical 28

Cooling degree days, base 65°F

Comfort

Dry air outside (dew point 48°F).

Open the windows?

No stretch in the next few days is comfortable enough outside, by temperature, dew point and air quality.

Is this typical?

HOUSTON NWSO · official normals 1991–2020 · records 1990–2026

Oct 23, today vs a typical year

Today’s expected high is 5°3° warmer than typical.

Last 7 days vs normal

On average 5°3° colder than normal (daily mean temperature).

−9°−5°SatOct 17
−9°−5°SunOct 18
−4°−2°MonOct 19
−1°TueOct 20
+2°+1°WedOct 21
—ThuOct 22
—FriOct 23

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

Sun & moon

Sun

Daylight: 11 h 15 min; Losing 1 min 43 s a day; shortest Dec 21, 59 min less
Golden hour: 6:09–6:57 PM; Morning 7:12–8:00 AM
Blue hour: 6:57–7:06 PM; Morning 7:03–7:12 AM; first light 7:03 AM

Stars tonight? Fair

Clear 7:06 PM–7:04 AM, but the moon is 95% lit and up.

Moon

Waxing gibbous

94% lit · growing

Today: sets 4:48 AM · rises 5:05 PM
Full moon: Oct 25
New moon: Nov 9

Looking west from Alvin. 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

Alvin, 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 Rosharon

Mustang Bayou at SH 6 near Alvin

Dickinson Bayou at SH 517 near Alvin

Clear Creek at Friendswood

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