Heat Advisory — Houston, TX, Trinity, TX, Madison, TX, Walker, TX, San Jacinto, TX, Polk, TX, Burleson, TX, Brazos, TX, Washington, TX, Grimes, TX, Montgomery, TX, Northern Liberty, TX, Colorado, TX, Austin, TX, Waller, TX, Inland Harris, TX, Chambers, TX, Wharton, TX, Fort Bend, TX, Inland Jackson, TX, Inland Matagorda, TX, Inland Brazoria, TX, Inland Galveston, TX, Southern Liberty, TX, Coastal Harris, TX, Coastal Jackson, TX, Coastal Matagorda, TX, Coastal Brazoria, TX, Coastal Galveston, TX, Matagorda Islands, TX, Brazoria Islands, TX, Galveston Island, TX, Bolivar Peninsula, TX 7:00 PM

Galveston, Texas

Last updated: 3:44 AM CDT  ·  Refresh
29°C
Feels like 36°
Mostly Clear
▲ 33°  /  ▼ 29°
Wind
14 mph SSW
Humidity
80%
Dew Point
26°
Pressure
29.97 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
30%
Sunrise
6:53 AM
Sunset
7:49 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Galveston is currently mostly clear at 29°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 2868 J/kg) — isolated convective development possible. Sunrise: 6:53AM · Sunset: 7:49PM.

Alerts

Heat Advisory
Houston, TX, Trinity, TX, Madison, TX, Walker, TX, San Jacinto, TX, Polk, TX, Burleson, TX, Brazos, TX, Washington, TX, Grimes, TX, Montgomery, TX, Northern Liberty, TX, Colorado, TX, Austin, TX, Waller, TX, Inland Harris, TX, Chambers, TX, Wharton, TX, Fort Bend, TX, Inland Jackson, TX, Inland Matagorda, TX, Inland Brazoria, TX, Inland Galveston, TX, Southern Liberty, TX, Coastal Harris, TX, Coastal Jackson, TX, Coastal Matagorda, TX, Coastal Brazoria, TX, Coastal Galveston, TX, Matagorda Islands, TX, Brazoria Islands, TX, Galveston Island, TX, Bolivar Peninsula, TX
Expires 7:00 PM
59 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
29°
3%
4 AM
29°
3%
5 AM
29°
3%
6 AM
29°
3%
7 AM
29°
6%
8 AM
30°
15%
9 AM
31°
15%
10 AM
31°
3%
11 AM
32°
3%
12 PM
32°
3%
1 PM
32°
3%
2 PM
32°
3%
3 PM
32°
3%
4 PM
32°
3%
5 PM
31°
3%
6 PM
31°
3%
7 PM
31°
3%
8 PM
31°
3%
9 PM
30°
3%
10 PM
30°
3%
11 PM
30°
3%
12 AM
30°
3%
1 AM
30°
3%
2 AM
30°
3%
7-Day Forecast
Today
33° 29°
Mostly Clear.
Wed
33° 29°
Mostly Clear.
Thu
34° 29°
Mostly Cloudy with a 57% chance of rain.
Fri
33° 28°
Partly Cloudy with a 58% chance of rain.
Sat
34° 28°
Drizzle, 43% chance.
Sun
33° 29°
Rain, 62% chance.
Mon
33° 29°
Rain, 63% chance.
TimeTempConditionsPrecipWindHumidity
Now 29° Mostly Clear 3% 14 mph SSW 80%
4 AM 29° Partly Cloudy 3% 12 mph SSW 79%
5 AM 29° Mostly Clear 3% 12 mph SSW 79%
6 AM 29° Mostly Clear 3% 11 mph SW 80%
7 AM 29° Mostly Clear 6% 9 mph SW 79%
8 AM 30° Mostly Clear 15% 8 mph SW 79%
9 AM 31° Mostly Clear 15% 8 mph SW 78%
10 AM 31° Mostly Clear 3% 7 mph SW 76%
11 AM 32° Mostly Clear 3% 7 mph SSW 75%
12 PM 32° Partly Cloudy 3% 7 mph S 74%
1 PM 32° Partly Cloudy 3% 8 mph S 74%
2 PM 32° Mostly Clear 3% 9 mph SSE 76%
3 PM 32° Mostly Clear 3% 10 mph S 78%
4 PM 32° Mostly Clear 3% 12 mph S 79%
5 PM 31° Mostly Clear 3% 13 mph S 79%
6 PM 31° Mostly Clear 3% 14 mph S 80%
7 PM 31° Mostly Clear 3% 14 mph S 80%
8 PM 31° Mostly Clear 3% 14 mph S 80%
9 PM 30° Mostly Clear 3% 15 mph S 80%
10 PM 30° Mostly Clear 3% 14 mph S 80%
11 PM 30° Mostly Clear 3% 14 mph S 80%
12 AM 30° Partly Cloudy 3% 14 mph SSW 80%
1 AM 30° Mostly Clear 3% 14 mph SSW 80%
2 AM 30° Mostly Clear 3% 13 mph SSW 80%
15-Day Forecast
Today
8/25
Mostly Clear
15%
29°
33°
Wed
8/26
Mostly Clear
3%
29°
33°
Thu
8/27
Mostly Cloudy
57%
29°
34°
Fri
8/28
Partly Cloudy
58%
28°
33°
Sat
8/29
Drizzle
43%
28°
34°
Sun
8/30
Rain
62%
29°
33°
Mon
8/31
Rain
63%
29°
33°
Tue
9/1
Rain
69%
29°
33°
Wed
9/2
Clear
19%
29°
34°
Thu
9/3
Clear
21%
29°
33°
Fri
9/4
Drizzle
60%
29°
34°
Sat
9/5
Drizzle
60%
29°
34°
Sun
9/6
Drizzle
60%
29°
33°
Mon
9/7
Drizzle
60%
29°
33°
Tue
9/8
Drizzle
60%
29°
33°
59
Moderate
U.S. Air Quality Index · Dominant: PM2.5
50 100 150 200

Air quality is acceptable. Unusually sensitive people should consider limiting prolonged outdoor exertion.

Pollutant Breakdown · Today
PM2.5
Fine particulate matter
Dominant
59 AQI 13.4 µg/m³
O3
Ground-level ozone
26 AQI 28 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 59 Moderate 26 59
Wed 52 Moderate 25 52
Thu 51 Moderate 27 51
About the Air Quality Index
0–50 Good
51–100 Moderate
101–150 Unhealthy for Sensitive Groups
151–200 Unhealthy
201–300 Very Unhealthy
301–500 Hazardous

The U.S. AQI runs 0–500. The overall value equals the highest individual pollutant sub-index, and the dominant pollutant is the one driving it. PM2.5 (fine particles) is reported in µg/m³ and ozone (O3) in ppb. Forecast source: NWS NAQFC.

1000850700500400300250200150100 -40-30-20-10010203040 0.41247101624 LCLLFCEL0°C Temperature (°C) Pressure (hPa)
Temp Dewpoint Parcel (SB) CAPE CIN Dry adiabat Moist adiabat Mixing ratio
RAP
Valid Tue Aug 25, 07:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE3329 J/kg
MLCAPE1634 J/kg
MUCAPE3329 J/kg
SBCIN-72 J/kg
MLCIN-192 J/kg
Lifted Index-7.7
Kinematics
0–6 km Shear33 kt
0–1 km Shear2 kt
Eff. Shear27 kt
0–1 km SRH-13
0–3 km SRH-12
Eff. SRH-12
Storm Motion107° @ 21 kt
0–1 km EHI-0.3
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index22.7
Thermo & Levels
PWAT1.85 in
0–3 km LR5.3 °C/km
700–500 LR6.7 °C/km
Total Totals37.7
LCL960 hPa
LFC769 hPa
EL137 hPa
Freezing Lvl16,273 ft