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

Polk County, Texas, United States

Last updated: 3:52 PM CDT  ·  Refresh
33°C
Feels like 39°
Mostly Clear
▲ 34°  /  ▼ 23°
Wind
6 mph SSE
Humidity
56%
Dew Point
23°
Pressure
29.64 inHg
Visibility
10 mi
UV Index
7.7
Cloud Cover
30%
Sunrise
7:02 AM
Sunset
7:27 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Polk County is currently mostly clear at 34°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 2931 J/kg) — isolated convective development possible. Sunrise: 7:02AM · Sunset: 7:27PM.

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
26 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
33°
7%
4 PM
34°
5%
5 PM
33°
5%
6 PM
32°
3%
7 PM
31°
3%
8 PM
29°
3%
9 PM
28°
3%
10 PM
27°
3%
11 PM
27°
3%
12 AM
26°
3%
1 AM
26°
3%
2 AM
26°
5%
3 AM
25°
5%
4 AM
25°
5%
5 AM
23°
5%
6 AM
23°
9%
7 AM
24°
9%
8 AM
25°
9%
9 AM
28°
10%
10 AM
29°
10%
11 AM
30°
10%
12 PM
31°
10%
1 PM
31°
10%
2 PM
32°
10%
7-Day Forecast
Today
34° 23°
Partly Cloudy.
Mon
36° 23°
Mostly Cloudy.
Tue
36° 23°
Clear.
Wed
34° 24°
Partly Cloudy.
Thu
35° 23°
Clear.
Fri
37° 22°
Clear.
Sat
37° 22°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 33° Mostly Clear 7% 6 mph SSE 56%
4 PM 34° Partly Cloudy 5% 6 mph SSE 62%
5 PM 33° Partly Cloudy 5% 7 mph SSE 69%
6 PM 32° Partly Cloudy 3% 6 mph SSE 76%
7 PM 31° Partly Cloudy 3% 5 mph SSE 80%
8 PM 29° Partly Cloudy 3% 5 mph SSE 82%
9 PM 28° Mostly Clear 3% 6 mph S 84%
10 PM 27° Clear 3% 5 mph S 86%
11 PM 27° Clear 3% 5 mph S 89%
12 AM 26° Clear 3% 5 mph S 91%
1 AM 26° Mostly Clear 3% 4 mph S 93%
2 AM 26° Mostly Clear 5% 4 mph S 95%
3 AM 25° Partly Cloudy 5% 3 mph S 97%
4 AM 25° Partly Cloudy 5% 3 mph SSE 97%
5 AM 23° Partly Cloudy 5% 2 mph SSE 96%
6 AM 23° Partly Cloudy 9% 2 mph SSE 96%
7 AM 24° Partly Cloudy 9% 2 mph SSE 94%
8 AM 25° Partly Cloudy 9% 3 mph SSE 88%
9 AM 28° Partly Cloudy 10% 3 mph S 84%
10 AM 29° Partly Cloudy 10% 3 mph S 79%
11 AM 30° Partly Cloudy 10% 3 mph S 74%
12 PM 31° Partly Cloudy 10% 3 mph S 68%
1 PM 31° Partly Cloudy 10% 3 mph S 68%
2 PM 32° Partly Cloudy 10% 4 mph S 67%
15-Day Forecast
Today
9/13
Partly Cloudy
7%
23°
34°
Mon
9/14
Mostly Cloudy
11%
23°
36°
Tue
9/15
Clear
8%
23°
36°
Wed
9/16
Partly Cloudy
16%
24°
34°
Thu
9/17
Clear
9%
23°
35°
Fri
9/18
Clear
9%
22°
37°
Sat
9/19
Clear
9%
22°
37°
Sun
9/20
Clear
60%
23°
34°
Mon
9/21
Drizzle
60%
21°
33°
Tue
9/22
Drizzle
60%
19°
33°
Wed
9/23
Drizzle
60%
19°
32°
Thu
9/24
Drizzle
60%
21°
33°
Fri
9/25
Drizzle
60%
20°
33°
Sat
9/26
Clear
25%
19°
33°
Sun
9/27
Drizzle
60%
19°
33°
26
Good
U.S. Air Quality Index · Dominant: O3
50 100 150 200

Air quality is satisfactory and poses little or no health risk.

Pollutant Breakdown · Today
PM2.5
Fine particulate matter
26 AQI 4.7 µg/m³
O3
Ground-level ozone
Dominant
26 AQI 29 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Mon 26 Good 26 26
Tue 25 Good 25 21
Wed 28 Good 28 20
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
SBCAPE3301 J/kg
MLCAPE2608 J/kg
MUCAPE3301 J/kg
SBCIN0 J/kg
MLCIN-7 J/kg
Lifted Index-5.8
Kinematics
0–6 km Shear2 kt
0–1 km Shear3 kt
Eff. Shear11 kt
0–1 km SRH-8
0–3 km SRH9
Eff. SRH9
Storm Motion150° @ 17 kt
0–1 km EHI-0.2
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index32.2
Thermo & Levels
PWAT1.82 in
0–3 km LR7.6 °C/km
700–500 LR5.4 °C/km
Total Totals43.8
LCL865 hPa
LFC1004 hPa
EL141 hPa
Freezing Lvl16,191 ft