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

Fort Bend County, Texas, United States

Last updated: 3:50 PM CDT  ·  Refresh
90°F
Feels like 102°
Mostly Cloudy
▲ 91°  /  ▼ 76°
Wind
8 mph SSE
Humidity
65%
Dew Point
74°
Pressure
29.87 inHg
Visibility
10 mi
UV Index
6.6
Cloud Cover
61%
Sunrise
7:06 AM
Sunset
7:30 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Fort Bend County is currently mostly cloudy at 90°F. Precipitation is likely — peak probability 52% around 4 PM. Atmospheric instability is elevated (CAPE up to 3056 J/kg) — isolated convective development possible. Sunrise: 7:06AM · Sunset: 7:30PM.

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
20 AQI · Good Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
90°
38%
4 PM
89°
52%
5 PM
89°
41%
6 PM
88°
24%
7 PM
86°
13%
8 PM
85°
10%
9 PM
81°
10%
10 PM
81°
10%
11 PM
80°
5%
12 AM
80°
3%
1 AM
79°
14%
2 AM
79°
27%
3 AM
79°
33%
4 AM
79°
34%
5 AM
76°
31%
6 AM
77°
37%
7 AM
78°
37%
8 AM
80°
26%
9 AM
83°
27%
10 AM
86°
31%
11 AM
86°
38%
12 PM
87°
38%
1 PM
89°
39%
2 PM
89°
33%
7-Day Forecast
Today
91° 76°
Partly Cloudy with a 38% chance of rain.
Mon
94° 76°
Partly Cloudy with a 39% chance of rain.
Tue
95° 74°
Mostly Cloudy with a 28% chance of rain.
Wed
93° 76°
Mostly Cloudy with a 52% chance of rain.
Thu
93° 74°
Drizzle, 60% chance.
Fri
94° 73°
Clear with a 43% chance of rain.
Sat
94° 73°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 90° Mostly Cloudy 38% 8 mph SSE 65%
4 PM 89° Mostly Cloudy 52% 10 mph SSE 70%
5 PM 89° Partly Cloudy 41% 9 mph SSE 73%
6 PM 88° Partly Cloudy 24% 7 mph SSE 78%
7 PM 86° Partly Cloudy 13% 5 mph SSE 82%
8 PM 85° Partly Cloudy 10% 6 mph SSE 86%
9 PM 81° Mostly Clear 10% 6 mph SSE 90%
10 PM 81° Mostly Clear 10% 5 mph SSE 92%
11 PM 80° Mostly Clear 5% 4 mph SSE 93%
12 AM 80° Mostly Clear 3% 3 mph SE 94%
1 AM 79° Partly Cloudy 14% 3 mph SE 94%
2 AM 79° Mostly Clear 27% 4 mph SE 94%
3 AM 79° Partly Cloudy 33% 4 mph SE 95%
4 AM 79° Mostly Clear 34% 4 mph SE 95%
5 AM 76° Partly Cloudy 31% 4 mph SE 95%
6 AM 77° Partly Cloudy 37% 4 mph ESE 95%
7 AM 78° Partly Cloudy 37% 4 mph ESE 90%
8 AM 80° Partly Cloudy 26% 4 mph SE 83%
9 AM 83° Partly Cloudy 27% 5 mph SE 78%
10 AM 86° Partly Cloudy 31% 5 mph SE 75%
11 AM 86° Mostly Cloudy 38% 5 mph SE 73%
12 PM 87° Mostly Cloudy 38% 5 mph SE 70%
1 PM 89° Mostly Cloudy 39% 6 mph SE 68%
2 PM 89° Mostly Cloudy 33% 6 mph SE 67%
15-Day Forecast
Today
9/13
Partly Cloudy
38%
76°
91°
Mon
9/14
Partly Cloudy
39%
76°
94°
Tue
9/15
Mostly Cloudy
28%
74°
95°
Wed
9/16
Mostly Cloudy
52%
76°
93°
Thu
9/17
Drizzle
60%
74°
93°
Fri
9/18
Clear
43%
73°
94°
Sat
9/19
Clear
19%
73°
94°
Sun
9/20
Drizzle
60%
74°
93°
Mon
9/21
Drizzle
60%
74°
93°
Tue
9/22
Drizzle
75%
74°
92°
Wed
9/23
Rain
90%
73°
91°
Thu
9/24
Drizzle
60%
72°
92°
Fri
9/25
Drizzle
60%
72°
92°
Sat
9/26
Clear
25%
71°
91°
Sun
9/27
Drizzle
60%
71°
90°
20
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
20 AQI 3.7 µg/m³
O3
Ground-level ozone
18 AQI 19 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Mon 20 Good 18 20
Tue 21 Good 21 20
Wed 25 Good 25 24
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
SBCAPE2679 J/kg
MLCAPE2286 J/kg
MUCAPE2690 J/kg
SBCIN-36 J/kg
MLCIN-36 J/kg
Lifted Index-5.7
Kinematics
0–6 km Shear0 kt
0–1 km Shear4 kt
Eff. Shear8 kt
0–1 km SRH8
0–3 km SRH-5
Eff. SRH-5
Storm Motion206° @ 18 kt
0–1 km EHI0.1
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index33.4
Thermo & Levels
PWAT2.08 in
0–3 km LR7.1 °C/km
700–500 LR5.6 °C/km
Total Totals45.6
LCL889 hPa
LFC818 hPa
EL150 hPa
Freezing Lvl16,391 ft