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: 10:07 PM CDT  ·  Refresh
29°C
Feels like 35°
Mostly Clear
▲ 38°  /  ▼ 22°
Wind
10 mph S
Humidity
78%
Dew Point
23°
Pressure
29.73 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
22%
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 mostly clear at 29°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 2535 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
29°
3%
11 PM
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°
3%
7 AM
22°
3%
8 AM
23°
3%
9 AM
26°
3%
10 AM
28°
3%
11 AM
31°
3%
12 PM
34°
3%
1 PM
36°
3%
2 PM
39°
3%
3 PM
39°
5%
4 PM
40°
8%
5 PM
41°
5%
6 PM
39°
5%
7 PM
38°
5%
8 PM
37°
5%
9 PM
34°
6%
7-Day Forecast
Tonight
38° 22°
Mostly Clear.
Sat
41° 22°
Partly Cloudy.
Sun
42° 22°
Mostly Clear.
Mon
41° 21°
Mostly Clear.
Tue
42° 22°
Clear.
Wed
42° 22°
Drizzle, 37% chance.
Thu
41° 22°
Drizzle, 43% chance.
TimeTempConditionsPrecipWindHumidity
Now 29° Mostly Clear 3% 10 mph S 78%
11 PM 28° Mostly Clear 3% 8 mph S 80%
12 AM 27° Mostly Clear 3% 7 mph S 86%
1 AM 27° Partly Cloudy 3% 7 mph S 90%
2 AM 26° Partly Cloudy 3% 6 mph SSW 92%
3 AM 26° Partly Cloudy 3% 6 mph SSW 93%
4 AM 25° Partly Cloudy 3% 5 mph SW 93%
5 AM 25° Mostly Cloudy 3% 5 mph SW 94%
6 AM 22° Mostly Cloudy 3% 4 mph SW 94%
7 AM 22° Mostly Cloudy 3% 4 mph SW 93%
8 AM 23° Mostly Cloudy 3% 5 mph SW 84%
9 AM 26° Mostly Cloudy 3% 7 mph SW 73%
10 AM 28° Mostly Cloudy 3% 8 mph SW 63%
11 AM 31° Partly Cloudy 3% 7 mph SW 51%
12 PM 34° Partly Cloudy 3% 6 mph SW 40%
1 PM 36° Mostly Clear 3% 5 mph SW 31%
2 PM 39° Mostly Clear 3% 4 mph S 28%
3 PM 39° Mostly Clear 5% 5 mph SSE 26%
4 PM 40° Mostly Clear 8% 7 mph SSE 24%
5 PM 41° Mostly Clear 5% 8 mph SSE 26%
6 PM 39° Mostly Clear 5% 10 mph SSE 29%
7 PM 38° Mostly Clear 5% 10 mph SE 32%
8 PM 37° Mostly Clear 5% 9 mph SSE 40%
9 PM 34° Partly Cloudy 6% 9 mph SSE 48%
15-Day Forecast
Today
8/21
Mostly Clear
3%
22°
38°
Sat
8/22
Partly Cloudy
8%
22°
41°
Sun
8/23
Mostly Clear
3%
22°
42°
Mon
8/24
Mostly Clear
3%
21°
41°
Tue
8/25
Clear
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°
41°
Thu
9/3
Clear
25%
24°
39°
Fri
9/4
Clear
25%
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, 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
SBCAPE2468 J/kg
MLCAPE1485 J/kg
MUCAPE2626 J/kg
SBCIN-245 J/kg
MLCIN-250 J/kg
Lifted Index-4.8
Kinematics
0–6 km Shear21 kt
0–1 km Shear1 kt
Eff. Shear19 kt
0–1 km SRH-6
0–3 km SRH97
Eff. SRH97
Storm Motion100° @ 19 kt
0–1 km EHI-0.1
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index29.7
Thermo & Levels
PWAT1.72 in
0–3 km LR5.5 °C/km
700–500 LR6.3 °C/km
Total Totals49.0
LCL924 hPa
LFC731 hPa
EL172 hPa
Freezing Lvl16,155 ft