Heat Advisory — Llano, TX, Burnet, TX, 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

Lavaca County, Texas, United States

Last updated: 11:13 PM CDT  ·  Refresh
28°C
Feels like 32°
Clear
▲ 38°  /  ▼ 22°
Wind
8 mph S
Humidity
81%
Dew Point
24°
Pressure
29.74 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
9%
Sunrise
6:59 AM
Sunset
8:01 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Lavaca County is currently clear at 28°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 2754 J/kg) — isolated convective development possible. Sunrise: 6:59AM · Sunset: 8:01PM.

Alerts

Heat Advisory
Llano, TX, Burnet, TX, 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
58 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
28°
3%
12 AM
27°
3%
1 AM
27°
3%
2 AM
26°
3%
3 AM
26°
3%
4 AM
25°
3%
5 AM
25°
3%
6 AM
22°
6%
7 AM
22°
6%
8 AM
23°
6%
9 AM
26°
6%
10 AM
29°
7%
11 AM
31°
7%
12 PM
34°
7%
1 PM
36°
7%
2 PM
39°
7%
3 PM
40°
10%
4 PM
40°
13%
5 PM
39°
10%
6 PM
39°
5%
7 PM
38°
5%
8 PM
37°
5%
9 PM
35°
5%
10 PM
33°
6%
7-Day Forecast
Tonight
38° 22°
Clear.
Sat
40° 22°
Partly Cloudy.
Sun
42° 23°
Mostly Clear.
Mon
40° 22°
Mostly Clear.
Tue
42° 22°
Mostly Cloudy.
Wed
42° 22°
Drizzle, 37% chance.
Thu
41° 22°
Drizzle, 43% chance.
TimeTempConditionsPrecipWindHumidity
Now 28° Clear 3% 8 mph S 81%
12 AM 27° Mostly Clear 3% 7 mph S 86%
1 AM 27° Mostly Clear 3% 6 mph S 91%
2 AM 26° Mostly Clear 3% 6 mph SSW 92%
3 AM 26° Partly Cloudy 3% 6 mph SSW 94%
4 AM 25° Partly Cloudy 3% 5 mph SSW 94%
5 AM 25° Mostly Cloudy 3% 5 mph SSW 94%
6 AM 22° Mostly Cloudy 6% 4 mph SSW 94%
7 AM 22° Overcast 6% 4 mph SSW 93%
8 AM 23° Overcast 6% 4 mph SW 84%
9 AM 26° Mostly Cloudy 6% 7 mph SW 74%
10 AM 29° Mostly Cloudy 7% 7 mph SW 63%
11 AM 31° Partly Cloudy 7% 6 mph SW 52%
12 PM 34° Mostly Clear 7% 5 mph SW 42%
1 PM 36° Mostly Clear 7% 4 mph SSW 33%
2 PM 39° Mostly Clear 7% 4 mph S 29%
3 PM 40° Partly Cloudy 10% 5 mph SSE 26%
4 PM 40° Partly Cloudy 13% 7 mph SSE 25%
5 PM 39° Partly Cloudy 10% 9 mph SE 27%
6 PM 39° Partly Cloudy 5% 11 mph SE 30%
7 PM 38° Partly Cloudy 5% 11 mph SE 34%
8 PM 37° Partly Cloudy 5% 10 mph SSE 42%
9 PM 35° Partly Cloudy 5% 10 mph SSE 51%
10 PM 33° Partly Cloudy 6% 9 mph SSE 59%
15-Day Forecast
Today
8/21
Clear
3%
22°
38°
Sat
8/22
Partly Cloudy
10%
22°
40°
Sun
8/23
Mostly Clear
3%
23°
42°
Mon
8/24
Mostly Clear
3%
22°
40°
Tue
8/25
Mostly Cloudy
3%
22°
42°
Wed
8/26
Drizzle
37%
22°
42°
Thu
8/27
Drizzle
43%
22°
41°
Fri
8/28
Clear
8%
24°
41°
Sat
8/29
Clear
18%
22°
41°
Sun
8/30
Clear
19%
22°
41°
Mon
8/31
Clear
3%
22°
40°
Tue
9/1
Clear
25%
24°
40°
Wed
9/2
Clear
25%
24°
40°
Thu
9/3
Drizzle
60%
24°
39°
Fri
9/4
Clear
60%
24°
39°
58
Moderate
U.S. Air Quality Index · Dominant: PM2.5
50 100 150 200

Air quality is acceptable. Unusually sensitive people should consider limiting prolonged outdoor exertion.

Pollutant Breakdown · Today
PM2.5
Fine particulate matter
Dominant
58 AQI 12.6 µg/m³
O3
Ground-level ozone
30 AQI 32 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 58 Moderate 30 58
Sun 57 Moderate 35 57
Mon 56 Moderate 31 56
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 Sat Aug 22, 03:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE2409 J/kg
MLCAPE1094 J/kg
MUCAPE2795 J/kg
SBCIN-267 J/kg
MLCIN-343 J/kg
Lifted Index-5.4
Kinematics
0–6 km Shear18 kt
0–1 km Shear6 kt
Eff. Shear20 kt
0–1 km SRH-26
0–3 km SRH58
Eff. SRH82
Storm Motion111° @ 21 kt
0–1 km EHI-0.4
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell2.4
K-Index27.3
Thermo & Levels
PWAT1.66 in
0–3 km LR5.1 °C/km
700–500 LR6.6 °C/km
Total Totals50.6
LCL947 hPa
LFC715 hPa
EL173 hPa
Freezing Lvl15,584 ft