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 7:00 PM

Houston, Texas

Last updated: 9:39 PM CDT  ·  Refresh
30°C
Feels like 34°
Clear
▲ 34°  /  ▼ 24°
Wind
9 mph SSW
Humidity
68%
Dew Point
24°
Pressure
29.77 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
5%
Sunrise
6:39 AM
Sunset
8:18 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Houston is currently clear at 30°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: 6:39AM · Sunset: 8:18PM.

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
Expires 7:00 PM
48 AQI · Good Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
30°
3%
10 PM
30°
3%
11 PM
29°
3%
12 AM
28°
3%
1 AM
27°
3%
2 AM
27°
3%
3 AM
27°
3%
4 AM
26°
3%
5 AM
24°
3%
6 AM
24°
3%
7 AM
26°
3%
8 AM
27°
3%
9 AM
28°
3%
10 AM
30°
3%
11 AM
31°
3%
12 PM
33°
3%
1 PM
35°
3%
2 PM
36°
3%
3 PM
36°
3%
4 PM
37°
3%
5 PM
36°
3%
6 PM
35°
3%
7 PM
34°
3%
8 PM
33°
3%
7-Day Forecast
Tonight
34° 24°
Clear.
Tue
38° 24°
Partly Cloudy.
Wed
38° 25°
Partly Cloudy.
Thu
38° 25°
Partly Cloudy.
Fri
39° 24°
Clear.
Sat
41° 26°
Clear.
Sun
40° 26°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 30° Clear 3% 9 mph SSW 68%
10 PM 30° Clear 3% 9 mph SSW 71%
11 PM 29° Clear 3% 8 mph SSW 76%
12 AM 28° Mostly Clear 3% 8 mph SSW 81%
1 AM 27° Mostly Clear 3% 7 mph SSW 84%
2 AM 27° Mostly Clear 3% 6 mph SSW 86%
3 AM 27° Mostly Clear 3% 6 mph SSW 87%
4 AM 26° Partly Cloudy 3% 6 mph SSW 88%
5 AM 24° Partly Cloudy 3% 5 mph SSW 89%
6 AM 24° Partly Cloudy 3% 5 mph SSW 90%
7 AM 26° Partly Cloudy 3% 5 mph SW 86%
8 AM 27° Partly Cloudy 3% 7 mph SW 79%
9 AM 28° Mostly Clear 3% 8 mph SW 72%
10 AM 30° Mostly Clear 3% 8 mph SW 65%
11 AM 31° Mostly Clear 3% 8 mph SW 58%
12 PM 33° Partly Cloudy 3% 8 mph SW 52%
1 PM 35° Partly Cloudy 3% 7 mph SW 47%
2 PM 36° Partly Cloudy 3% 8 mph SSW 44%
3 PM 36° Partly Cloudy 3% 8 mph SSW 42%
4 PM 37° Partly Cloudy 3% 9 mph SSW 43%
5 PM 36° Partly Cloudy 3% 10 mph SSW 45%
6 PM 35° Partly Cloudy 3% 10 mph SSW 47%
7 PM 34° Partly Cloudy 3% 10 mph SSW 52%
8 PM 33° Partly Cloudy 3% 10 mph SSW 58%
15-Day Forecast
Today
7/27
Clear
3%
24°
34°
Tue
7/28
Partly Cloudy
3%
24°
38°
Wed
7/29
Partly Cloudy
7%
25°
38°
Thu
7/30
Partly Cloudy
16%
25°
38°
Fri
7/31
Clear
3%
24°
39°
Sat
8/1
Clear
8%
26°
41°
Sun
8/2
Clear
17%
26°
40°
Mon
8/3
Rain
27%
25°
40°
Tue
8/4
Thunderstorm
44%
24°
38°
Wed
8/5
Clear
26%
26°
39°
Thu
8/6
Drizzle
60%
25°
38°
Fri
8/7
Drizzle
60%
26°
38°
Sat
8/8
Clear
25%
26°
38°
Sun
8/9
Clear
25%
26°
38°
Mon
8/10
Drizzle
60%
26°
38°
48
Good
U.S. Air Quality Index · Dominant: PM2.5
50 100 150 200

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

Pollutant Breakdown · Today
PM2.5
Fine particulate matter
Dominant
48 AQI 8.6 µg/m³
O3
Ground-level ozone
28 AQI 30 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 48 Good 28 48
Wed 56 Moderate 27 56
Thu 60 Moderate 25 60
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 Jul 28, 01:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE1723 J/kg
MLCAPE1594 J/kg
MUCAPE1919 J/kg
SBCIN-107 J/kg
MLCIN0 J/kg
Lifted Index-2.3
Kinematics
0–6 km Shear23 kt
0–1 km Shear4 kt
Eff. Shear22 kt
0–1 km SRH21
0–3 km SRH5
Eff. SRH5
Storm Motion301° @ 15 kt
0–1 km EHI0.2
Composite Parameters
Sig. Tornado0.1
STP (eff)0.0
Supercell0.1
K-Index13.1
Thermo & Levels
PWAT1.54 in
0–3 km LR5.4 °C/km
700–500 LR5.4 °C/km
Total Totals31.8
LCL929 hPa
LFC720 hPa
EL151 hPa
Freezing Lvl18,435 ft