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

Washington County, Texas, United States

Last updated: 3:40 AM CDT  ·  Refresh
26°C
Feels like 29°
Mostly Clear
▲ 39°  /  ▼ 23°
Wind
9 mph SSW
Humidity
90%
Dew Point
24°
Pressure
29.66 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
16%
Sunrise
6:58 AM
Sunset
7:56 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Washington County is currently mostly clear at 26°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 1482 J/kg) — isolated convective development possible. Sunrise: 6:58AM · Sunset: 7:56PM.

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
54 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
26°
3%
4 AM
26°
3%
5 AM
23°
3%
6 AM
23°
3%
7 AM
24°
3%
8 AM
26°
3%
9 AM
27°
3%
10 AM
28°
3%
11 AM
30°
3%
12 PM
32°
3%
1 PM
35°
3%
2 PM
36°
3%
3 PM
37°
3%
4 PM
37°
3%
5 PM
39°
3%
6 PM
39°
3%
7 PM
37°
3%
8 PM
36°
3%
9 PM
33°
3%
10 PM
31°
3%
11 PM
31°
3%
12 AM
29°
3%
1 AM
29°
3%
2 AM
29°
3%
7-Day Forecast
Today
39° 23°
Mostly Clear.
Wed
41° 23°
Clear.
Thu
39° 24°
Mostly Clear with a 60% chance of rain.
Fri
37° 23°
Rain, 56% chance.
Sat
39° 23°
Clear.
Sun
38° 23°
Clear.
Mon
38° 22°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 26° Mostly Clear 3% 9 mph SSW 90%
4 AM 26° Clear 3% 8 mph SSW 90%
5 AM 23° Mostly Clear 3% 7 mph SSW 93%
6 AM 23° Mostly Clear 3% 6 mph SSW 94%
7 AM 24° Mostly Clear 3% 6 mph SW 89%
8 AM 26° Partly Cloudy 3% 8 mph SW 78%
9 AM 27° Mostly Clear 3% 9 mph SW 67%
10 AM 28° Mostly Clear 3% 8 mph SW 57%
11 AM 30° Mostly Clear 3% 7 mph SW 48%
12 PM 32° Mostly Clear 3% 5 mph SSW 40%
1 PM 35° Mostly Clear 3% 5 mph SSW 35%
2 PM 36° Mostly Clear 3% 5 mph S 32%
3 PM 37° Partly Cloudy 3% 6 mph SSE 29%
4 PM 37° Mostly Clear 3% 7 mph SSE 29%
5 PM 39° Mostly Clear 3% 9 mph SSE 32%
6 PM 39° Mostly Clear 3% 11 mph SSE 34%
7 PM 37° Mostly Clear 3% 12 mph SSE 39%
8 PM 36° Mostly Clear 3% 12 mph SSE 46%
9 PM 33° Mostly Clear 3% 14 mph S 54%
10 PM 31° Mostly Clear 3% 13 mph S 61%
11 PM 31° Mostly Clear 3% 12 mph S 66%
12 AM 29° Mostly Clear 3% 11 mph S 71%
1 AM 29° Mostly Clear 3% 10 mph S 75%
2 AM 29° Partly Cloudy 3% 10 mph SSW 78%
15-Day Forecast
Today
8/25
Mostly Clear
3%
23°
39°
Wed
8/26
Clear
12%
23°
41°
Thu
8/27
Mostly Clear
60%
24°
39°
Fri
8/28
Rain
56%
23°
37°
Sat
8/29
Clear
3%
23°
39°
Sun
8/30
Clear
16%
23°
38°
Mon
8/31
Clear
3%
22°
38°
Tue
9/1
Clear
18%
22°
38°
Wed
9/2
Drizzle
44%
23°
39°
Thu
9/3
Clear
36%
23°
40°
Fri
9/4
Drizzle
60%
24°
40°
Sat
9/5
Drizzle
60%
24°
38°
Sun
9/6
Drizzle
60%
24°
37°
Mon
9/7
Drizzle
60%
24°
37°
Tue
9/8
Drizzle
60%
24°
37°
54
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
54 AQI 10.6 µg/m³
O3
Ground-level ozone
38 AQI 42 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 54 Moderate 38 54
Wed 51 Moderate 35 51
Thu 53 Moderate 35 53
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
SBCAPE1434 J/kg
MLCAPE625 J/kg
MUCAPE1596 J/kg
SBCIN-365 J/kg
MLCIN-478 J/kg
Lifted Index-4.9
Kinematics
0–6 km Shear23 kt
0–1 km Shear9 kt
Eff. Shear—
0–1 km SRH-56
0–3 km SRH-38
Eff. SRH—
Storm Motion122° @ 21 kt
0–1 km EHI-0.5
Composite Parameters
Sig. Tornado0.0
STP (eff)—
Supercell—
K-Index19.4
Thermo & Levels
PWAT1.53 in
0–3 km LR3.9 °C/km
700–500 LR7.4 °C/km
Total Totals40.6
LCL970 hPa
LFC643 hPa
EL176 hPa
Freezing Lvl16,129 ft