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: 9:33 PM CDT  ·  Refresh
30°C
Feels like 34°
Clear
▲ 34°  /  ▼ 24°
Wind
8 mph SSW
Humidity
67%
Dew Point
24°
Pressure
29.83 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
3%
Sunrise
6:38 AM
Sunset
8:17 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 1337 J/kg) — isolated convective development possible. Sunrise: 6:38AM · Sunset: 8:17PM.

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
52 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
30°
3%
10 PM
29°
7%
11 PM
29°
7%
12 AM
28°
3%
1 AM
28°
3%
2 AM
27°
3%
3 AM
27°
3%
4 AM
27°
3%
5 AM
25°
3%
6 AM
24°
3%
7 AM
26°
3%
8 AM
27°
3%
9 AM
28°
3%
10 AM
29°
3%
11 AM
31°
3%
12 PM
33°
3%
1 PM
34°
3%
2 PM
35°
8%
3 PM
36°
9%
4 PM
37°
18%
5 PM
36°
19%
6 PM
35°
19%
7 PM
34°
19%
8 PM
33°
19%
7-Day Forecast
Tonight
34° 24°
Clear.
Tue
37° 24°
Mostly Clear with a 22% chance of rain.
Wed
38° 26°
Partly Cloudy.
Thu
37° 26°
Partly Cloudy.
Fri
39° 25°
Clear.
Sat
39° 26°
Clear.
Sun
39° 27°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 30° Clear 3% 8 mph SSW 67%
10 PM 29° Clear 7% 8 mph SSW 70%
11 PM 29° Clear 7% 8 mph SSW 74%
12 AM 28° Mostly Clear 3% 7 mph SSW 78%
1 AM 28° Mostly Clear 3% 7 mph SSW 82%
2 AM 27° Mostly Clear 3% 6 mph SSW 84%
3 AM 27° Mostly Clear 3% 6 mph SSW 85%
4 AM 27° Mostly Clear 3% 6 mph SSW 86%
5 AM 25° Partly Cloudy 3% 5 mph SSW 86%
6 AM 24° Partly Cloudy 3% 5 mph SSW 86%
7 AM 26° Partly Cloudy 3% 6 mph SW 82%
8 AM 27° Partly Cloudy 3% 6 mph SW 76%
9 AM 28° Mostly Clear 3% 7 mph SW 69%
10 AM 29° Clear 3% 8 mph SW 62%
11 AM 31° Mostly Clear 3% 7 mph SW 55%
12 PM 33° Mostly Clear 3% 7 mph SW 49%
1 PM 34° Mostly Clear 3% 6 mph SW 44%
2 PM 35° Partly Cloudy 8% 7 mph SSW 42%
3 PM 36° Partly Cloudy 9% 7 mph SSW 40%
4 PM 37° Partly Cloudy 18% 8 mph SSW 41%
5 PM 36° Partly Cloudy 19% 9 mph SSW 44%
6 PM 35° Partly Cloudy 19% 10 mph SSW 46%
7 PM 34° Partly Cloudy 19% 10 mph SSW 51%
8 PM 33° Mostly Clear 19% 10 mph SSW 57%
15-Day Forecast
Today
7/27
Clear
3%
24°
34°
Tue
7/28
Mostly Clear
22%
24°
37°
Wed
7/29
Partly Cloudy
7%
26°
38°
Thu
7/30
Partly Cloudy
6%
26°
37°
Fri
7/31
Clear
3%
25°
39°
Sat
8/1
Clear
8%
26°
39°
Sun
8/2
Clear
19%
27°
39°
Mon
8/3
Rain
33%
25°
39°
Tue
8/4
Thunderstorm
29%
24°
37°
Wed
8/5
Clear
19%
26°
37°
Thu
8/6
Drizzle
60%
26°
37°
Fri
8/7
Drizzle
60%
26°
37°
Sat
8/8
Clear
25%
26°
37°
Sun
8/9
Clear
25%
26°
36°
Mon
8/10
Drizzle
60%
26°
37°
52
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
52 AQI 9.5 µg/m³
O3
Ground-level ozone
30 AQI 32 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 52 Moderate 30 52
Wed 55 Moderate 24 55
Thu 60 Moderate 24 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
SBCAPE1469 J/kg
MLCAPE1523 J/kg
MUCAPE1737 J/kg
SBCIN-118 J/kg
MLCIN0 J/kg
Lifted Index-2.0
Kinematics
0–6 km Shear23 kt
0–1 km Shear4 kt
Eff. Shear22 kt
0–1 km SRH25
0–3 km SRH5
Eff. SRH5
Storm Motion302° @ 16 kt
0–1 km EHI0.2
Composite Parameters
Sig. Tornado0.1
STP (eff)0.0
Supercell0.1
K-Index13.2
Thermo & Levels
PWAT1.57 in
0–3 km LR5.5 °C/km
700–500 LR5.4 °C/km
Total Totals31.4
LCL921 hPa
LFC697 hPa
EL159 hPa
Freezing Lvl18,448 ft