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

Atascosa County, Texas, United States

Last updated: 10:08 PM CDT  ·  Refresh
31°C
Feels like 36°
Clear
▲ 39°  /  ▼ 22°
Wind
11 mph SSE
Humidity
64%
Dew Point
21°
Pressure
29.52 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
3%
Sunrise
7:05 AM
Sunset
8:07 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Atascosa County is currently clear at 31°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 1779 J/kg) — isolated convective development possible. Sunrise: 7:05AM · Sunset: 8:07PM.

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
61 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
31°
3%
11 PM
30°
3%
12 AM
29°
3%
1 AM
28°
3%
2 AM
27°
3%
3 AM
27°
3%
4 AM
26°
3%
5 AM
26°
3%
6 AM
23°
3%
7 AM
22°
3%
8 AM
24°
3%
9 AM
27°
3%
10 AM
28°
3%
11 AM
31°
3%
12 PM
33°
3%
1 PM
35°
3%
2 PM
38°
3%
3 PM
38°
3%
4 PM
39°
3%
5 PM
41°
3%
6 PM
40°
3%
7 PM
39°
3%
8 PM
38°
3%
9 PM
37°
3%
7-Day Forecast
Tonight
39° 22°
Clear.
Sat
41° 22°
Partly Cloudy.
Sun
41° 23°
Mostly Clear.
Mon
39° 22°
Mostly Clear.
Tue
40° 23°
Clear.
Wed
41° 24°
Clear.
Thu
39° 24°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 31° Clear 3% 11 mph SSE 64%
11 PM 30° Clear 3% 11 mph SSE 60%
12 AM 29° Clear 3% 9 mph SSE 63%
1 AM 28° Clear 3% 8 mph SSE 66%
2 AM 27° Clear 3% 6 mph SSE 70%
3 AM 27° Mostly Clear 3% 6 mph SSE 74%
4 AM 26° Mostly Clear 3% 5 mph SSE 77%
5 AM 26° Mostly Clear 3% 4 mph SSE 79%
6 AM 23° Partly Cloudy 3% 4 mph SE 81%
7 AM 22° Partly Cloudy 3% 3 mph ESE 82%
8 AM 24° Partly Cloudy 3% 3 mph SE 75%
9 AM 27° Mostly Cloudy 3% 4 mph SSE 66%
10 AM 28° Mostly Cloudy 3% 4 mph S 58%
11 AM 31° Partly Cloudy 3% 5 mph S 48%
12 PM 33° Partly Cloudy 3% 5 mph S 39%
1 PM 35° Partly Cloudy 3% 5 mph SSE 31%
2 PM 38° Mostly Clear 3% 6 mph SE 27%
3 PM 38° Mostly Clear 3% 7 mph SE 24%
4 PM 39° Mostly Clear 3% 8 mph SE 22%
5 PM 41° Mostly Clear 3% 8 mph SE 21%
6 PM 40° Mostly Clear 3% 8 mph SE 22%
7 PM 39° Clear 3% 9 mph SE 23%
8 PM 38° Clear 3% 9 mph SE 29%
9 PM 37° Clear 3% 11 mph SE 34%
15-Day Forecast
Today
8/21
Clear
3%
22°
39°
Sat
8/22
Partly Cloudy
3%
22°
41°
Sun
8/23
Mostly Clear
3%
23°
41°
Mon
8/24
Mostly Clear
3%
22°
39°
Tue
8/25
Clear
8%
23°
40°
Wed
8/26
Clear
8%
24°
41°
Thu
8/27
Clear
17%
24°
39°
Fri
8/28
Clear
8%
25°
40°
Sat
8/29
Clear
3%
23°
40°
Sun
8/30
Clear
19%
23°
40°
Mon
8/31
Clear
12%
23°
39°
Tue
9/1
Clear
25%
24°
39°
Wed
9/2
Clear
25%
24°
39°
Thu
9/3
Clear
25%
24°
38°
Fri
9/4
Clear
25%
24°
38°
61
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
61 AQI 14.6 µg/m³
O3
Ground-level ozone
32 AQI 36 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 61 Moderate 32 61
Sun 58 Moderate 37 58
Mon 59 Moderate 35 59
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
SBCAPE1542 J/kg
MLCAPE1403 J/kg
MUCAPE2086 J/kg
SBCIN-382 J/kg
MLCIN-207 J/kg
Lifted Index-2.9
Kinematics
0–6 km Shear17 kt
0–1 km Shear2 kt
Eff. Shear29 kt
0–1 km SRH-0
0–3 km SRH37
Eff. SRH91
Storm Motion96° @ 18 kt
0–1 km EHI-0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell2.9
K-Index30.1
Thermo & Levels
PWAT1.52 in
0–3 km LR6.5 °C/km
700–500 LR6.0 °C/km
Total Totals48.0
LCL864 hPa
LFC702 hPa
EL191 hPa
Freezing Lvl16,224 ft