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

Bastrop County, Texas, United States

Last updated: 4:53 PM CDT  ·  Refresh
35°C
Feels like 38°
Mostly Cloudy
▲ 37°  /  ▼ 24°
Wind
12 mph SE
Humidity
43%
Dew Point
22°
Pressure
29.47 inHg
Visibility
10 mi
UV Index
5.6
Cloud Cover
60%
Sunrise
7:12 AM
Sunset
7:37 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Bastrop County is currently mostly cloudy at 35°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 2746 J/kg) — isolated convective development possible. Sunrise: 7:12AM · Sunset: 7:37PM.

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
27 AQI · Good Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
35°
8%
5 PM
34°
9%
6 PM
32°
9%
7 PM
31°
9%
8 PM
30°
9%
9 PM
29°
9%
10 PM
28°
6%
11 PM
27°
6%
12 AM
27°
5%
1 AM
26°
5%
2 AM
26°
5%
3 AM
26°
8%
4 AM
26°
19%
5 AM
24°
22%
6 AM
24°
31%
7 AM
25°
21%
8 AM
26°
21%
9 AM
27°
17%
10 AM
28°
20%
11 AM
31°
20%
12 PM
31°
17%
1 PM
33°
24%
2 PM
33°
24%
3 PM
33°
20%
7-Day Forecast
Today
37° 24°
Mostly Cloudy.
Mon
37° 24°
Partly Cloudy with a 25% chance of rain.
Tue
39° 22°
Mostly Clear.
Wed
36° 24°
Partly Cloudy with a 40% chance of rain.
Thu
36° 23°
Mostly Cloudy with a 44% chance of rain.
Fri
37° 22°
Clear.
Sat
37° 21°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 35° Mostly Cloudy 8% 12 mph SE 43%
5 PM 34° Mostly Cloudy 9% 13 mph SE 56%
6 PM 32° Mostly Cloudy 9% 12 mph SE 62%
7 PM 31° Mostly Cloudy 9% 9 mph SSE 63%
8 PM 30° Mostly Cloudy 9% 9 mph SSE 64%
9 PM 29° Mostly Cloudy 9% 9 mph SSE 66%
10 PM 28° Partly Cloudy 6% 9 mph SSE 71%
11 PM 27° Partly Cloudy 6% 9 mph SSE 76%
12 AM 27° Partly Cloudy 5% 8 mph SSE 80%
1 AM 26° Mostly Clear 5% 7 mph S 83%
2 AM 26° Mostly Clear 5% 5 mph S 85%
3 AM 26° Mostly Clear 8% 4 mph SSE 88%
4 AM 26° Mostly Clear 19% 4 mph SSE 87%
5 AM 24° Partly Cloudy 22% 4 mph SSE 86%
6 AM 24° Partly Cloudy 31% 3 mph S 85%
7 AM 25° Partly Cloudy 21% 4 mph S 81%
8 AM 26° Partly Cloudy 21% 5 mph S 76%
9 AM 27° Mostly Clear 17% 5 mph S 71%
10 AM 28° Partly Cloudy 20% 5 mph S 67%
11 AM 31° Partly Cloudy 20% 6 mph SSE 63%
12 PM 31° Partly Cloudy 17% 7 mph SSE 60%
1 PM 33° Mostly Cloudy 24% 7 mph SSE 59%
2 PM 33° Mostly Cloudy 24% 8 mph SSE 59%
3 PM 33° Mostly Cloudy 20% 8 mph SSE 59%
15-Day Forecast
Today
9/13
Mostly Cloudy
9%
24°
37°
Mon
9/14
Partly Cloudy
25%
24°
37°
Tue
9/15
Mostly Clear
10%
22°
39°
Wed
9/16
Partly Cloudy
40%
24°
36°
Thu
9/17
Mostly Cloudy
44%
23°
36°
Fri
9/18
Clear
10%
22°
37°
Sat
9/19
Clear
17%
21°
37°
Sun
9/20
Clear
43%
22°
36°
Mon
9/21
Drizzle
60%
23°
36°
Tue
9/22
Drizzle
68%
21°
34°
Wed
9/23
Drizzle
67%
21°
34°
Thu
9/24
Clear
60%
22°
34°
Fri
9/25
Drizzle
60%
21°
33°
Sat
9/26
Drizzle
60%
21°
33°
Sun
9/27
Drizzle
60%
21°
33°
27
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
27 AQI 4.9 µg/m³
O3
Ground-level ozone
7 AQI 8 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Mon 27 Good 7 27
Tue 22 Good 8 22
Wed 43 Good 9 43
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, 20:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE2864 J/kg
MLCAPE1535 J/kg
MUCAPE2864 J/kg
SBCIN-12 J/kg
MLCIN-117 J/kg
Lifted Index-5.4
Kinematics
0–6 km Shear8 kt
0–1 km Shear7 kt
Eff. Shear11 kt
0–1 km SRH-10
0–3 km SRH37
Eff. SRH37
Storm Motion108° @ 20 kt
0–1 km EHI-0.2
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index36.3
Thermo & Levels
PWAT1.94 in
0–3 km LR8.2 °C/km
700–500 LR5.4 °C/km
Total Totals47.3
LCL828 hPa
LFC802 hPa
EL148 hPa
Freezing Lvl16,017 ft