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 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
89°F
Feels like 100°
Mostly Cloudy
▲ 93°  /  ▼ 78°
Wind
8 mph SSE
Humidity
65%
Dew Point
74°
Pressure
29.93 inHg
Visibility
10 mi
UV Index
4.6
Cloud Cover
83%
Sunrise
7:04 AM
Sunset
7:29 PM
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WeatherAI™ Analysis

WeatherAI Analysis: Houston is currently mostly cloudy at 89°F. Precipitation is likely — peak probability 66% around 2 PM. Atmospheric instability is elevated (CAPE up to 3206 J/kg) — isolated convective development possible. Sunrise: 7:04AM · Sunset: 7:29PM.

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
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
33 AQI · Good Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
89°
32%
4 PM
88°
24%
5 PM
90°
23%
6 PM
88°
5%
7 PM
87°
3%
8 PM
86°
3%
9 PM
83°
3%
10 PM
83°
3%
11 PM
82°
3%
12 AM
82°
3%
1 AM
81°
8%
2 AM
81°
11%
3 AM
80°
11%
4 AM
80°
21%
5 AM
78°
21%
6 AM
78°
21%
7 AM
79°
22%
8 AM
81°
30%
9 AM
83°
31%
10 AM
85°
64%
11 AM
86°
64%
12 PM
86°
65%
1 PM
87°
65%
2 PM
86°
66%
7-Day Forecast
Today
93° 78°
Mostly Cloudy with a 32% chance of rain.
Mon
94° 78°
Partly Cloudy with a 57% chance of rain.
Tue
94° 78°
Mostly Cloudy with a 28% chance of rain.
Wed
92° 79°
Mostly Cloudy with a 34% chance of rain.
Thu
92° 76°
Clear.
Fri
94° 74°
Clear.
Sat
94° 75°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 89° Mostly Cloudy 32% 8 mph SSE 65%
4 PM 88° Mostly Cloudy 24% 9 mph SE 72%
5 PM 90° Mostly Cloudy 23% 8 mph SSE 73%
6 PM 88° Partly Cloudy 5% 6 mph SE 73%
7 PM 87° Mostly Clear 3% 6 mph SE 76%
8 PM 86° Mostly Clear 3% 5 mph SSE 79%
9 PM 83° Mostly Clear 3% 5 mph SSE 82%
10 PM 83° Mostly Clear 3% 4 mph SSE 84%
11 PM 82° Partly Cloudy 3% 4 mph SSE 86%
12 AM 82° Mostly Clear 3% 4 mph SSE 88%
1 AM 81° Partly Cloudy 8% 3 mph SSE 89%
2 AM 81° Mostly Clear 11% 3 mph SSE 90%
3 AM 80° Partly Cloudy 11% 3 mph SE 91%
4 AM 80° Partly Cloudy 21% 3 mph SE 91%
5 AM 78° Mostly Clear 21% 3 mph SE 92%
6 AM 78° Mostly Clear 21% 3 mph ESE 92%
7 AM 79° Mostly Clear 22% 3 mph ESE 87%
8 AM 81° Mostly Clear 30% 3 mph SE 80%
9 AM 83° Mostly Clear 31% 4 mph SE 75%
10 AM 85° Mostly Clear 64% 4 mph SE 73%
11 AM 86° Partly Cloudy 64% 4 mph SE 72%
12 PM 86° Partly Cloudy 65% 4 mph SE 70%
1 PM 87° Partly Cloudy 65% 4 mph SE 70%
2 PM 86° Partly Cloudy 66% 4 mph SE 70%
15-Day Forecast
Today
9/13
Mostly Cloudy
32%
78°
93°
Mon
9/14
Partly Cloudy
57%
78°
94°
Tue
9/15
Mostly Cloudy
28%
78°
94°
Wed
9/16
Mostly Cloudy
34%
79°
92°
Thu
9/17
Clear
9%
76°
92°
Fri
9/18
Clear
3%
74°
94°
Sat
9/19
Clear
9%
75°
94°
Sun
9/20
Clear
60%
76°
94°
Mon
9/21
Drizzle
60%
74°
93°
Tue
9/22
Drizzle
75%
73°
92°
Wed
9/23
Drizzle
75%
71°
90°
Thu
9/24
Drizzle
60%
74°
90°
Fri
9/25
Clear
25%
74°
90°
Sat
9/26
Clear
25%
73°
89°
Sun
9/27
Clear
60%
73°
88°
33
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
33 AQI 6.0 µg/m³
O3
Ground-level ozone
19 AQI 20 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Mon 33 Good 19 33
Tue 35 Good 24 35
Wed 39 Good 30 39
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
SBCAPE2810 J/kg
MLCAPE2198 J/kg
MUCAPE2810 J/kg
SBCIN-52 J/kg
MLCIN-29 J/kg
Lifted Index-5.7
Kinematics
0–6 km Shear2 kt
0–1 km Shear6 kt
Eff. Shear8 kt
0–1 km SRH12
0–3 km SRH3
Eff. SRH3
Storm Motion216° @ 17 kt
0–1 km EHI0.2
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index36.0
Thermo & Levels
PWAT2.15 in
0–3 km LR7.0 °C/km
700–500 LR5.5 °C/km
Total Totals46.1
LCL901 hPa
LFC849 hPa
EL148 hPa
Freezing Lvl16,503 ft