Galveston County, Texas, United States

Last updated: 4:14 PM CDT  ·  Refresh
30°C
Feels like 33°
Mostly Clear
▲ 30°  /  ▼ 23°
Wind
7 mph NE
Humidity
63%
Dew Point
21°
Pressure
29.86 inHg
Visibility
10 mi
UV Index
6.8
Cloud Cover
16%
Sunrise
7:15 AM
Sunset
6:59 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Galveston County is currently mostly clear at 30°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 1699 J/kg) — isolated convective development possible. Sunrise: 7:15AM · Sunset: 6:59PM.

Alerts

No active alerts for this location.
41 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
30°
3%
5 PM
29°
23%
6 PM
28°
23%
7 PM
27°
23%
8 PM
27°
23%
9 PM
26°
23%
10 PM
26°
23%
11 PM
26°
16%
12 AM
25°
16%
1 AM
25°
3%
2 AM
24°
3%
3 AM
24°
3%
4 AM
24°
3%
5 AM
24°
3%
6 AM
23°
3%
7 AM
23°
3%
8 AM
24°
3%
9 AM
25°
3%
10 AM
27°
3%
11 AM
27°
6%
12 PM
28°
6%
1 PM
28°
6%
2 PM
28°
12%
3 PM
28°
18%
7-Day Forecast
Today
30° 23°
Mostly Clear with a 23% chance of rain.
Wed
31° 23°
Mostly Clear with a 23% chance of rain.
Thu
31° 23°
Clear.
Fri
31° 24°
Mostly Clear with a 82% chance of rain.
Sat
29° 23°
Clear with a 60% chance of rain.
Sun
31° 22°
Drizzle, 60% chance.
Mon
31° 24°
Drizzle, 60% chance.
TimeTempConditionsPrecipWindHumidity
Now 30° Mostly Clear 3% 7 mph NE 63%
5 PM 29° Clear 23% 6 mph ENE 70%
6 PM 28° Clear 23% 5 mph ENE 73%
7 PM 27° Clear 23% 4 mph E 75%
8 PM 27° Clear 23% 3 mph E 76%
9 PM 26° Mostly Clear 23% 2 mph E 78%
10 PM 26° Mostly Clear 23% 2 mph NE 79%
11 PM 26° Mostly Clear 16% 2 mph N 80%
12 AM 25° Mostly Clear 16% 4 mph N 81%
1 AM 25° Mostly Clear 3% 4 mph N 81%
2 AM 24° Partly Cloudy 3% 5 mph N 81%
3 AM 24° Partly Cloudy 3% 5 mph NNE 80%
4 AM 24° Mostly Clear 3% 6 mph NNE 79%
5 AM 24° Mostly Clear 3% 6 mph NNE 80%
6 AM 23° Mostly Clear 3% 6 mph NE 81%
7 AM 23° Clear 3% 6 mph NE 81%
8 AM 24° Mostly Clear 3% 6 mph NE 80%
9 AM 25° Mostly Clear 3% 7 mph NE 78%
10 AM 27° Mostly Clear 3% 7 mph NE 75%
11 AM 27° Partly Cloudy 6% 7 mph ENE 74%
12 PM 28° Partly Cloudy 6% 7 mph ENE 73%
1 PM 28° Partly Cloudy 6% 7 mph ENE 72%
2 PM 28° Mostly Clear 12% 6 mph ENE 70%
3 PM 28° Rain 18% 6 mph ENE 69%
15-Day Forecast
Today
10/6
Mostly Clear
23%
23°
30°
Wed
10/7
Mostly Clear
23%
23°
31°
Thu
10/8
Clear
16%
23°
31°
Fri
10/9
Mostly Clear
82%
24°
31°
Sat
10/10
Clear
60%
23°
29°
Sun
10/11
Drizzle
60%
22°
31°
Mon
10/12
Drizzle
60%
24°
31°
Tue
10/13
Clear
60%
26°
31°
Wed
10/14
Drizzle
60%
25°
31°
Thu
10/15
Drizzle
60%
24°
31°
Fri
10/16
Drizzle
60%
22°
29°
Sat
10/17
Drizzle
60%
20°
26°
Sun
10/18
Drizzle
60%
19°
26°
Mon
10/19
Clear
25%
19°
26°
Tue
10/20
Clear
25%
19°
27°
41
Good
U.S. Air Quality Index · Dominant: O3
50 100 150 200

Air quality is satisfactory and poses little or no health risk.

Pollutant Breakdown · Today
PM2.5
Fine particulate matter
38 AQI 6.9 µg/m³
O3
Ground-level ozone
Dominant
41 AQI 45 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Wed 41 Good 41 38
Thu 42 Good 42 38
Fri 37 Good 37 29
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 Oct 6, 20:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 50 60 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE495 J/kg
MLCAPE46 J/kg
MUCAPE495 J/kg
SBCIN-15 J/kg
MLCIN-80 J/kg
Lifted Index-1.9
Kinematics
0–6 km Shear27 kt
0–1 km Shear7 kt
Eff. Shear6 kt
0–1 km SRH-22
0–3 km SRH11
Eff. SRH11
Storm Motion8° @ 18 kt
0–1 km EHI-0.1
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index26.1
Thermo & Levels
PWAT1.60 in
0–3 km LR6.7 °C/km
700–500 LR5.3 °C/km
Total Totals39.9
LCL888 hPa
LFC882 hPa
EL372 hPa
Freezing Lvl15,098 ft