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

Walker County, Texas, United States

Last updated: 9:32 PM CDT  ·  Refresh
30°C
Feels like 33°
Clear
▲ 35°  /  ▼ 23°
Wind
5 mph S
Humidity
61%
Dew Point
22°
Pressure
29.47 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
0%
Sunrise
6:37 AM
Sunset
8:20 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Walker County is currently clear at 30°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 1084 J/kg) — isolated convective development possible. Sunrise: 6:37AM · Sunset: 8:20PM.

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
36 AQI · Good Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
30°
3%
10 PM
29°
3%
11 PM
28°
3%
12 AM
28°
3%
1 AM
27°
3%
2 AM
26°
3%
3 AM
26°
3%
4 AM
25°
3%
5 AM
23°
3%
6 AM
23°
3%
7 AM
23°
3%
8 AM
25°
3%
9 AM
27°
3%
10 AM
28°
3%
11 AM
30°
3%
12 PM
32°
3%
1 PM
34°
3%
2 PM
34°
3%
3 PM
35°
3%
4 PM
37°
3%
5 PM
36°
3%
6 PM
35°
3%
7 PM
34°
3%
8 PM
33°
3%
7-Day Forecast
Tonight
35° 23°
Clear.
Tue
37° 23°
Mostly Clear.
Wed
38° 23°
Partly Cloudy.
Thu
38° 24°
Partly Cloudy.
Fri
39° 24°
Clear.
Sat
41° 25°
Clear.
Sun
39° 24°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 30° Clear 3% 5 mph S 61%
10 PM 29° Clear 3% 6 mph S 68%
11 PM 28° Clear 3% 7 mph S 72%
12 AM 28° Clear 3% 7 mph SSW 77%
1 AM 27° Clear 3% 8 mph SSW 80%
2 AM 26° Mostly Clear 3% 7 mph SSW 84%
3 AM 26° Mostly Clear 3% 7 mph SSW 88%
4 AM 25° Partly Cloudy 3% 7 mph SSW 91%
5 AM 23° Partly Cloudy 3% 6 mph SSW 92%
6 AM 23° Partly Cloudy 3% 6 mph SSW 92%
7 AM 23° Partly Cloudy 3% 7 mph SW 89%
8 AM 25° Partly Cloudy 3% 8 mph SW 82%
9 AM 27° Partly Cloudy 3% 8 mph SW 76%
10 AM 28° Partly Cloudy 3% 8 mph SW 68%
11 AM 30° Mostly Clear 3% 7 mph SW 61%
12 PM 32° Clear 3% 6 mph SW 53%
1 PM 34° Clear 3% 6 mph SW 48%
2 PM 34° Clear 3% 6 mph SSW 44%
3 PM 35° Clear 3% 6 mph SSW 41%
4 PM 37° Clear 3% 6 mph SSW 41%
5 PM 36° Clear 3% 6 mph SSW 42%
6 PM 35° Clear 3% 7 mph SSW 44%
7 PM 34° Clear 3% 7 mph S 47%
8 PM 33° Clear 3% 7 mph SSW 51%
15-Day Forecast
Today
7/27
Clear
3%
23°
35°
Tue
7/28
Mostly Clear
3%
23°
37°
Wed
7/29
Partly Cloudy
7%
23°
38°
Thu
7/30
Partly Cloudy
16%
24°
38°
Fri
7/31
Clear
8%
24°
39°
Sat
8/1
Clear
17%
25°
41°
Sun
8/2
Clear
17%
24°
39°
Mon
8/3
Rain
19%
22°
39°
Tue
8/4
Rain
29%
21°
38°
Wed
8/5
Clear
42%
23°
39°
Thu
8/6
Clear
60%
23°
38°
Fri
8/7
Drizzle
60%
24°
38°
Sat
8/8
Drizzle
60%
23°
38°
Sun
8/9
Clear
25%
24°
38°
Mon
8/10
Drizzle
60%
23°
38°
36
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
36 AQI 6.5 µg/m³
O3
Ground-level ozone
29 AQI 32 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 36 Good 29 36
Wed 42 Good 28 42
Thu 57 Moderate 26 57
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
SBCAPE428 J/kg
MLCAPE307 J/kg
MUCAPE428 J/kg
SBCIN-412 J/kg
MLCIN0 J/kg
Lifted Index-0.1
Kinematics
0–6 km Shear18 kt
0–1 km Shear8 kt
Eff. Shear28 kt
0–1 km SRH42
0–3 km SRH9
Eff. SRH-40
Storm Motion308° @ 15 kt
0–1 km EHI0.1
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index15.2
Thermo & Levels
PWAT1.37 in
0–3 km LR5.4 °C/km
700–500 LR5.6 °C/km
Total Totals35.3
LCL886 hPa
LFC502 hPa
EL216 hPa
Freezing Lvl18,133 ft