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

Houston, Texas

Last updated: 3:41 AM CDT  ·  Refresh
27°C
Feels like 31°
Mostly Clear
▲ 36°  /  ▼ 26°
Wind
5 mph SSW
Humidity
87%
Dew Point
25°
Pressure
29.95 inHg
Visibility
9 mi
UV Index
0.0
Cloud Cover
19%
Sunrise
6:54 AM
Sunset
7:50 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Houston is currently mostly clear at 27°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 2475 J/kg) — isolated convective development possible. Sunrise: 6:54AM · Sunset: 7:50PM.

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
55 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
27°
3%
4 AM
27°
3%
5 AM
25°
3%
6 AM
24°
3%
7 AM
26°
3%
8 AM
28°
3%
9 AM
28°
3%
10 AM
30°
3%
11 AM
31°
3%
12 PM
33°
3%
1 PM
36°
3%
2 PM
36°
10%
3 PM
36°
5%
4 PM
35°
3%
5 PM
36°
3%
6 PM
34°
3%
7 PM
33°
3%
8 PM
32°
3%
9 PM
31°
3%
10 PM
29°
3%
11 PM
29°
3%
12 AM
28°
3%
1 AM
28°
3%
2 AM
28°
3%
7-Day Forecast
Today
36° 26°
Mostly Clear.
Wed
38° 26°
Clear.
Thu
38° 26°
Mostly Clear with a 57% chance of rain.
Fri
36° 26°
Rain, 65% chance.
Sat
37° 24°
Drizzle, 42% chance.
Sun
36° 25°
Drizzle, 43% chance.
Mon
36° 25°
Drizzle, 44% chance.
TimeTempConditionsPrecipWindHumidity
Now 27° Mostly Clear 3% 5 mph SSW 87%
4 AM 27° Mostly Clear 3% 5 mph SSW 87%
5 AM 25° Mostly Clear 3% 4 mph SSW 87%
6 AM 24° Partly Cloudy 3% 4 mph SW 88%
7 AM 26° Mostly Clear 3% 4 mph SW 84%
8 AM 28° Mostly Clear 3% 5 mph SW 76%
9 AM 28° Mostly Clear 3% 6 mph SW 68%
10 AM 30° Mostly Clear 3% 6 mph SW 62%
11 AM 31° Mostly Clear 3% 4 mph WSW 56%
12 PM 33° Mostly Clear 3% 3 mph W 50%
1 PM 36° Mostly Clear 3% 3 mph ESE 48%
2 PM 36° Mostly Clear 10% 5 mph SE 48%
3 PM 36° Mostly Clear 5% 8 mph SE 48%
4 PM 35° Mostly Clear 3% 9 mph SE 51%
5 PM 36° Mostly Clear 3% 10 mph SSE 55%
6 PM 34° Mostly Clear 3% 12 mph SSE 60%
7 PM 33° Clear 3% 11 mph S 65%
8 PM 32° Clear 3% 11 mph S 70%
9 PM 31° Clear 3% 10 mph S 74%
10 PM 29° Clear 3% 9 mph S 77%
11 PM 29° Clear 3% 9 mph S 79%
12 AM 28° Clear 3% 8 mph SSW 81%
1 AM 28° Mostly Clear 3% 8 mph SSW 82%
2 AM 28° Mostly Clear 3% 8 mph SSW 82%
15-Day Forecast
Today
8/25
Mostly Clear
5%
26°
36°
Wed
8/26
Clear
3%
26°
38°
Thu
8/27
Mostly Clear
57%
26°
38°
Fri
8/28
Rain
65%
26°
36°
Sat
8/29
Drizzle
42%
24°
37°
Sun
8/30
Drizzle
43%
25°
36°
Mon
8/31
Drizzle
44%
25°
36°
Tue
9/1
Rain
69%
26°
36°
Wed
9/2
Clear
19%
25°
37°
Thu
9/3
Clear
3%
25°
36°
Fri
9/4
Clear
25%
27°
36°
Sat
9/5
Drizzle
60%
27°
36°
Sun
9/6
Drizzle
60%
27°
35°
Mon
9/7
Drizzle
60%
27°
35°
Tue
9/8
Drizzle
60%
27°
35°
55
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
55 AQI 11.5 µg/m³
O3
Ground-level ozone
36 AQI 39 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 55 Moderate 36 55
Wed 50 Good 39 50
Thu 52 Moderate 38 52
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
SBCAPE2387 J/kg
MLCAPE1256 J/kg
MUCAPE2387 J/kg
SBCIN-172 J/kg
MLCIN-272 J/kg
Lifted Index-6.2
Kinematics
0–6 km Shear22 kt
0–1 km Shear11 kt
Eff. Shear17 kt
0–1 km SRH-65
0–3 km SRH-72
Eff. SRH-72
Storm Motion111° @ 20 kt
0–1 km EHI-1.0
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index21.9
Thermo & Levels
PWAT1.77 in
0–3 km LR4.5 °C/km
700–500 LR6.8 °C/km
Total Totals37.5
LCL984 hPa
LFC723 hPa
EL152 hPa
Freezing Lvl16,260 ft