Heat Advisory — Williamson, TX, Hays, TX, Travis, TX, Bastrop, TX, Lee, TX, Bexar, TX, Comal, TX, Guadalupe, TX, Caldwell, TX, Fayette, TX, Atascosa, TX, Wilson, TX, Karnes, TX, Gonzales, TX, De Witt, TX, Lavaca, TX 7:00 PM Heat Advisory — Williamson, TX, Hays, TX, Travis, TX, Bastrop, TX, Lee, TX, Bexar, TX, Comal, TX, Guadalupe, TX, Caldwell, TX, Fayette, TX, Atascosa, TX, Wilson, TX, Karnes, TX, Gonzales, TX, De Witt, TX, Lavaca, TX 7:00 PM

Fayette County, Texas, United States

Last updated: 3:48 PM CDT  ·  Refresh
95°F
Feels like 106°
Rain
▲ 95°  /  ▼ 74°
Wind
12 mph SSE
Humidity
50%
Dew Point
73°
Pressure
29.54 inHg
Visibility
10 mi
UV Index
6.4
Cloud Cover
65%
Sunrise
7:10 AM
Sunset
7:35 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Fayette County is currently rain at 95°F. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 2783 J/kg) — isolated convective development possible. Sunrise: 7:10AM · Sunset: 7:35PM.

Alerts

Heat Advisory
Williamson, TX, Hays, TX, Travis, TX, Bastrop, TX, Lee, TX, Bexar, TX, Comal, TX, Guadalupe, TX, Caldwell, TX, Fayette, TX, Atascosa, TX, Wilson, TX, Karnes, TX, Gonzales, TX, De Witt, TX, Lavaca, TX
Expires 7:00 PM
Heat Advisory
Williamson, TX, Hays, TX, Travis, TX, Bastrop, TX, Lee, TX, Bexar, TX, Comal, TX, Guadalupe, TX, Caldwell, TX, Fayette, TX, Atascosa, TX, Wilson, TX, Karnes, TX, Gonzales, TX, De Witt, TX, Lavaca, TX
Expires 7:00 PM
26 AQI · Good Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
95°
24%
4 PM
90°
40%
5 PM
89°
23%
6 PM
86°
22%
7 PM
85°
21%
8 PM
84°
3%
9 PM
82°
3%
10 PM
81°
5%
11 PM
80°
5%
12 AM
78°
5%
1 AM
78°
5%
2 AM
77°
9%
3 AM
77°
9%
4 AM
76°
17%
5 AM
74°
20%
6 AM
74°
20%
7 AM
75°
27%
8 AM
77°
16%
9 AM
81°
27%
10 AM
86°
27%
11 AM
88°
28%
12 PM
90°
28%
1 PM
92°
29%
2 PM
92°
29%
7-Day Forecast
Today
95° 74°
Mostly Cloudy with a 24% chance of rain.
Mon
100° 74°
Mostly Clear with a 37% chance of rain.
Tue
101° 73°
Partly Cloudy.
Wed
95° 72°
Mostly Cloudy.
Thu
96° 72°
Clear.
Fri
98° 71°
Clear.
Sat
97° 71°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 95° Rain 24% 12 mph SSE 50%
4 PM 90° Rain 40% 12 mph S 53%
5 PM 89° Rain 23% 11 mph S 56%
6 PM 86° Thunderstorm 22% 10 mph SE 59%
7 PM 85° Overcast 21% 9 mph SE 64%
8 PM 84° Overcast 3% 9 mph SE 69%
9 PM 82° Mostly Cloudy 3% 9 mph SSE 73%
10 PM 81° Partly Cloudy 5% 9 mph SSE 76%
11 PM 80° Partly Cloudy 5% 8 mph SSE 79%
12 AM 78° Mostly Clear 5% 7 mph SSE 81%
1 AM 78° Mostly Clear 5% 6 mph SSE 83%
2 AM 77° Mostly Clear 9% 5 mph SSE 85%
3 AM 77° Mostly Clear 9% 4 mph SSE 88%
4 AM 76° Mostly Clear 17% 4 mph SSE 89%
5 AM 74° Mostly Clear 20% 3 mph SE 91%
6 AM 74° Partly Cloudy 20% 3 mph SE 92%
7 AM 75° Partly Cloudy 27% 3 mph SSE 87%
8 AM 77° Mostly Clear 16% 4 mph SSE 81%
9 AM 81° Mostly Clear 27% 4 mph S 76%
10 AM 86° Mostly Clear 27% 5 mph S 70%
11 AM 88° Partly Cloudy 28% 5 mph SSE 64%
12 PM 90° Partly Cloudy 28% 6 mph SSE 58%
1 PM 92° Partly Cloudy 29% 6 mph SSE 58%
2 PM 92° Partly Cloudy 29% 8 mph SSE 59%
15-Day Forecast
Today
9/13
Mostly Cloudy
24%
74°
95°
Mon
9/14
Mostly Clear
37%
74°
100°
Tue
9/15
Partly Cloudy
3%
73°
101°
Wed
9/16
Mostly Cloudy
8%
72°
95°
Thu
9/17
Clear
9%
72°
96°
Fri
9/18
Clear
3%
71°
98°
Sat
9/19
Clear
19%
71°
97°
Sun
9/20
Clear
60%
72°
97°
Mon
9/21
Drizzle
60%
73°
97°
Tue
9/22
Drizzle
60%
70°
95°
Wed
9/23
Drizzle
60%
70°
93°
Thu
9/24
Drizzle
60%
71°
93°
Fri
9/25
Drizzle
60%
70°
92°
Sat
9/26
Clear
60%
69°
92°
Sun
9/27
Drizzle
60%
69°
92°
26
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
26 AQI 4.6 µg/m³
O3
Ground-level ozone
16 AQI 18 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Mon 26 Good 16 26
Tue 21 Good 18 21
Wed 34 Good 19 34
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
SBCAPE3465 J/kg
MLCAPE2588 J/kg
MUCAPE3465 J/kg
SBCIN-0 J/kg
MLCIN-7 J/kg
Lifted Index-6.5
Kinematics
0–6 km Shear4 kt
0–1 km Shear1 kt
Eff. Shear13 kt
0–1 km SRH4
0–3 km SRH15
Eff. SRH15
Storm Motion97° @ 15 kt
0–1 km EHI0.1
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index39.9
Thermo & Levels
PWAT2.10 in
0–3 km LR8.3 °C/km
700–500 LR5.6 °C/km
Total Totals49.5
LCL836 hPa
LFC1000 hPa
EL141 hPa
Freezing Lvl16,332 ft