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: 4:49 PM CDT  ·  Refresh
31°C
Feels like 38°
Partly Cloudy
▲ 34°  /  ▼ 26°
Wind
6 mph SSE
Humidity
68%
Dew Point
24°
Pressure
29,96 inHg
Visibility
10 mi
UV Index
6,2
Cloud Cover
44%
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 31°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 3123 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
31°
23%
5 PM
32°
12%
6 PM
31°
12%
7 PM
31°
9%
8 PM
30°
9%
9 PM
29°
13%
10 PM
28°
9%
11 PM
28°
9%
12 AM
28°
7%
1 AM
27°
18%
2 AM
27°
18%
3 AM
27°
25%
4 AM
27°
38%
5 AM
26°
38%
6 AM
26°
26%
7 AM
26°
32%
8 AM
27°
29%
9 AM
28°
32%
10 AM
28°
40%
11 AM
30°
44%
12 PM
30°
45%
1 PM
31°
45%
2 PM
31°
42%
3 PM
31°
42%
7-Day Forecast
Today
34° 26°
Partly Cloudy with a 23% chance of rain.
Mon
34° 26°
Mostly Clear with a 44% chance of rain.
Tue
34° 25°
Mostly Clear with a 22% chance of rain.
Wed
33° 26°
Partly Cloudy with a 45% chance of rain.
Thu
32° 26°
Mostly Cloudy with a 43% chance of rain.
Fri
33° 23°
Clear.
Sat
33° 23°
Clear with a 20% chance of rain.
TimeTempConditionsPrecipWindHumidity
Now 31° Partly Cloudy 23% 6 mph SSE 68%
5 PM 32° Mostly Clear 12% 7 mph SSE 74%
6 PM 31° Partly Cloudy 12% 7 mph SSE 76%
7 PM 31° Partly Cloudy 9% 6 mph SSE 79%
8 PM 30° Partly Cloudy 9% 6 mph SSE 81%
9 PM 29° Mostly Clear 13% 6 mph SSE 83%
10 PM 28° Mostly Clear 9% 5 mph SSE 84%
11 PM 28° Clear 9% 5 mph SSE 86%
12 AM 28° Clear 7% 4 mph SSE 88%
1 AM 27° Clear 18% 4 mph SSE 89%
2 AM 27° Clear 18% 3 mph SSE 90%
3 AM 27° Mostly Clear 25% 3 mph SE 91%
4 AM 27° Mostly Clear 38% 3 mph SE 90%
5 AM 26° Mostly Clear 38% 3 mph SE 89%
6 AM 26° Mostly Clear 26% 3 mph ESE 87%
7 AM 26° Mostly Clear 32% 3 mph SE 83%
8 AM 27° Mostly Clear 29% 3 mph SE 77%
9 AM 28° Mostly Clear 32% 3 mph SE 73%
10 AM 28° Mostly Clear 40% 3 mph SE 70%
11 AM 30° Partly Cloudy 44% 4 mph SE 68%
12 PM 30° Partly Cloudy 45% 4 mph ESE 66%
1 PM 31° Partly Cloudy 45% 4 mph SE 68%
2 PM 31° Partly Cloudy 42% 5 mph SE 70%
3 PM 31° Partly Cloudy 42% 6 mph SSE 72%
15-Day Forecast
Today
9/13
Partly Cloudy
23%
26°
34°
Mon
9/14
Mostly Clear
44%
26°
34°
Tue
9/15
Mostly Clear
22%
25°
34°
Wed
9/16
Partly Cloudy
45%
26°
33°
Thu
9/17
Mostly Cloudy
43%
26°
32°
Fri
9/18
Clear
15%
23°
33°
Sat
9/19
Clear
20%
23°
33°
Sun
9/20
Mostly Clear
60%
24°
33°
Mon
9/21
Drizzle
68%
24°
33°
Tue
9/22
Drizzle
68%
23°
32°
Wed
9/23
Drizzle
67%
22°
31°
Thu
9/24
Drizzle
60%
24°
31°
Fri
9/25
Clear
60%
24°
31°
Sat
9/26
Clear
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 dim. sept. 13, 20:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE3027 J/kg
MLCAPE2738 J/kg
MUCAPE3597 J/kg
SBCIN-19 J/kg
MLCIN-33 J/kg
Lifted Index-6.4
Kinematics
0–6 km Shear11 kt
0–1 km Shear5 kt
Eff. Shear12 kt
0–1 km SRH-4
0–3 km SRH16
Eff. SRH16
Storm Motion133° @ 22 kt
0–1 km EHI-0.1
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index35.0
Thermo & Levels
PWAT2.26 in
0–3 km LR6.6 °C/km
700–500 LR5.7 °C/km
Total Totals46.4
LCL917 hPa
LFC839 hPa
EL148 hPa
Freezing Lvl16,161 ft