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, Wharton, TX, Fort Bend, TX, Inland Jackson, TX, Inland Matagorda, TX, Inland Brazoria, TX, Coastal Jackson, TX 6:00 PM

Houston, Texas

Last updated: 3:51 PM CDT  ·  Refresh
32°C
Feels like 38°
Partly Cloudy
▲ 33°  /  ▼ 25°
Wind
6 mph SE
Humidity
67%
Dew Point
24°
Pressure
29.96 inHg
Visibility
10 mi
UV Index
6.8
Cloud Cover
58%
Sunrise
7:03 AM
Sunset
7:28 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Houston is currently partly cloudy at 32°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 3442 J/kg) — isolated convective development possible. Sunrise: 7:03AM · Sunset: 7:28PM.

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, Wharton, TX, Fort Bend, TX, Inland Jackson, TX, Inland Matagorda, TX, Inland Brazoria, TX, Coastal Jackson, TX
Expires 6:00 PM
25 AQI · Good Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
32°
23%
4 PM
32°
24%
5 PM
32°
8%
6 PM
31°
5%
7 PM
31°
5%
8 PM
30°
5%
9 PM
28°
10%
10 PM
28°
8%
11 PM
28°
8%
12 AM
28°
8%
1 AM
27°
19%
2 AM
27°
20%
3 AM
27°
24%
4 AM
27°
24%
5 AM
25°
25%
6 AM
25°
25%
7 AM
26°
26%
8 AM
27°
26%
9 AM
28°
27%
10 AM
29°
35%
11 AM
29°
40%
12 PM
30°
40%
1 PM
31°
40%
2 PM
31°
37%
7-Day Forecast
Today
33° 25°
Partly Cloudy with a 23% chance of rain.
Mon
34° 25°
Partly Cloudy with a 42% chance of rain.
Tue
34° 26°
Partly Cloudy.
Wed
33° 26°
Partly Cloudy with a 55% chance of rain.
Thu
32° 25°
Clear with a 60% chance of rain.
Fri
33° 24°
Clear.
Sat
33° 24°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 32° Partly Cloudy 23% 6 mph SE 67%
4 PM 32° Partly Cloudy 24% 7 mph SSE 72%
5 PM 32° Mostly Clear 8% 7 mph SSE 74%
6 PM 31° Clear 5% 7 mph SSE 77%
7 PM 31° Mostly Clear 5% 6 mph SSE 80%
8 PM 30° Mostly Clear 5% 6 mph SSE 82%
9 PM 28° Mostly Clear 10% 5 mph SSE 85%
10 PM 28° Mostly Clear 8% 5 mph SSE 86%
11 PM 28° Mostly Clear 8% 4 mph SSE 87%
12 AM 28° Mostly Clear 8% 4 mph SSE 88%
1 AM 27° Mostly Clear 19% 4 mph SSE 90%
2 AM 27° Mostly Clear 20% 3 mph SSE 91%
3 AM 27° Mostly Clear 24% 3 mph SSE 92%
4 AM 27° Mostly Clear 24% 2 mph SE 92%
5 AM 25° Mostly Clear 25% 2 mph ESE 92%
6 AM 25° Mostly Clear 25% 3 mph ESE 92%
7 AM 26° Mostly Clear 26% 3 mph ESE 88%
8 AM 27° Partly Cloudy 26% 4 mph SE 82%
9 AM 28° Partly Cloudy 27% 4 mph SE 77%
10 AM 29° Partly Cloudy 35% 5 mph SE 74%
11 AM 29° Partly Cloudy 40% 5 mph SE 72%
12 PM 30° Partly Cloudy 40% 6 mph SE 69%
1 PM 31° Partly Cloudy 40% 5 mph SE 70%
2 PM 31° Partly Cloudy 37% 5 mph SE 71%
15-Day Forecast
Today
9/13
Partly Cloudy
23%
25°
33°
Mon
9/14
Partly Cloudy
42%
25°
34°
Tue
9/15
Partly Cloudy
18%
26°
34°
Wed
9/16
Partly Cloudy
55%
26°
33°
Thu
9/17
Clear
60%
25°
32°
Fri
9/18
Clear
3%
24°
33°
Sat
9/19
Clear
9%
24°
33°
Sun
9/20
Clear
60%
26°
33°
Mon
9/21
Drizzle
60%
24°
33°
Tue
9/22
Drizzle
60%
23°
32°
Wed
9/23
Drizzle
60%
22°
31°
Thu
9/24
Drizzle
60%
24°
31°
Fri
9/25
Clear
25%
24°
31°
Sat
9/26
Drizzle
60%
24°
30°
Sun
9/27
Clear
60%
24°
30°
25
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
25 AQI 4.5 µg/m³
O3
Ground-level ozone
15 AQI 16 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Mon 25 Good 15 25
Tue 26 Good 21 26
Wed 29 Good 27 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 Sun Sep 13, 19:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE3472 J/kg
MLCAPE2986 J/kg
MUCAPE3472 J/kg
SBCIN-5 J/kg
MLCIN-9 J/kg
Lifted Index-6.8
Kinematics
0–6 km Shear3 kt
0–1 km Shear5 kt
Eff. Shear8 kt
0–1 km SRH-13
0–3 km SRH3
Eff. SRH3
Storm Motion157° @ 18 kt
0–1 km EHI-0.3
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index37.4
Thermo & Levels
PWAT2.30 in
0–3 km LR7.1 °C/km
700–500 LR5.5 °C/km
Total Totals46.7
LCL915 hPa
LFC890 hPa
EL141 hPa
Freezing Lvl16,299 ft