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

De Witt, Atlantus Drive, El Paso County, Texas, United States

Last updated: 4:50 PM CDT  ·  Refresh
94°F
Feels like 92°
Clear
▲ 95°  /  ▼ 71°
Wind
7 mph SW
Humidity
25%
Dew Point
54°
Pressure
25.85 inHg
Visibility
10 mi
UV Index
7.5
Cloud Cover
8%
Sunrise
6:46 AM
Sunset
7:12 PM
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WeatherAI™ Analysis

WeatherAI Analysis: De Witt is currently clear at 94°F. Precipitation is likely — peak probability 52% around 12 AM. Atmospheric instability is elevated (CAPE up to 1214 J/kg) — isolated convective development possible. Sunrise: 6:46AM · Sunset: 7:12PM.

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
71 AQI · Moderate Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
94°
7%
4 PM
94°
12%
5 PM
94°
16%
6 PM
91°
24%
7 PM
89°
24%
8 PM
87°
27%
9 PM
84°
34%
10 PM
81°
38%
11 PM
78°
38%
12 AM
78°
52%
1 AM
77°
27%
2 AM
76°
10%
3 AM
76°
7%
4 AM
75°
7%
5 AM
71°
5%
6 AM
72°
5%
7 AM
73°
5%
8 AM
74°
5%
9 AM
76°
3%
10 AM
83°
3%
11 AM
85°
3%
12 PM
86°
3%
1 PM
86°
12%
2 PM
87°
12%
7-Day Forecast
Today
95° 71°
Mostly Clear with a 34% chance of rain.
Mon
95° 71°
Mostly Clear with a 52% chance of rain.
Tue
91° 69°
Mostly Clear with a 51% chance of rain.
Wed
91° 67°
Mostly Clear with a 73% chance of rain.
Thu
89° 66°
Drizzle, 64% chance.
Fri
87° 64°
Rain, 78% chance.
Sat
86° 64°
Drizzle, 63% chance.
TimeTempConditionsPrecipWindHumidity
Now 94° Clear 7% 7 mph SW 25%
4 PM 94° Clear 12% 6 mph SSW 27%
5 PM 94° Clear 16% 9 mph S 28%
6 PM 91° Partly Cloudy 24% 8 mph SE 30%
7 PM 89° Partly Cloudy 24% 4 mph ESE 32%
8 PM 87° Partly Cloudy 27% 3 mph ENE 34%
9 PM 84° Partly Cloudy 34% 3 mph E 39%
10 PM 81° Mostly Cloudy 38% 6 mph ESE 53%
11 PM 78° Mostly Cloudy 38% 7 mph S 62%
12 AM 78° Mostly Cloudy 52% 6 mph SW 65%
1 AM 77° Mostly Cloudy 27% 4 mph ENE 66%
2 AM 76° Mostly Cloudy 10% 5 mph E 66%
3 AM 76° Partly Cloudy 7% 5 mph E 67%
4 AM 75° Partly Cloudy 7% 4 mph ESE 68%
5 AM 71° Mostly Clear 5% 4 mph ESE 68%
6 AM 72° Mostly Clear 5% 5 mph ESE 66%
7 AM 73° Mostly Clear 5% 6 mph SE 65%
8 AM 74° Clear 5% 6 mph SE 63%
9 AM 76° Clear 3% 7 mph SE 60%
10 AM 83° Clear 3% 7 mph SSE 56%
11 AM 85° Clear 3% 7 mph SSE 53%
12 PM 86° Mostly Clear 3% 7 mph S 50%
1 PM 86° Mostly Clear 12% 7 mph S 47%
2 PM 87° Mostly Clear 12% 7 mph S 44%
15-Day Forecast
Today
9/13
Mostly Clear
34%
71°
95°
Mon
9/14
Mostly Clear
52%
71°
95°
Tue
9/15
Mostly Clear
51%
69°
91°
Wed
9/16
Mostly Clear
73%
67°
91°
Thu
9/17
Drizzle
64%
66°
89°
Fri
9/18
Rain
78%
64°
87°
Sat
9/19
Drizzle
63%
64°
86°
Sun
9/20
Drizzle
63%
63°
84°
Mon
9/21
Drizzle
50%
64°
85°
Tue
9/22
Drizzle
60%
65°
83°
Wed
9/23
Drizzle
60%
64°
82°
Thu
9/24
Drizzle
60%
68°
82°
Fri
9/25
Drizzle
60%
67°
82°
Sat
9/26
Drizzle
60%
66°
82°
Sun
9/27
Drizzle
60%
67°
82°
71
Moderate
U.S. Air Quality Index · Dominant: O3
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
32 AQI 5.7 µg/m³
O3
Ground-level ozone
Dominant
71 AQI 62 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Mon 71 Moderate 71 32
Tue 58 Moderate 58 30
Wed 77 Moderate 77 26
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
SBCAPE940 J/kg
MLCAPE421 J/kg
MUCAPE940 J/kg
SBCIN-11 J/kg
MLCIN-22 J/kg
Lifted Index-3.7
Kinematics
0–6 km Shear6 kt
0–1 km Shear2 kt
Eff. Shear5 kt
0–1 km SRH-6
0–3 km SRH35
Eff. SRH35
Storm Motion206° @ 19 kt
0–1 km EHI-0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index34.5
Thermo & Levels
PWAT1.13 in
0–3 km LR10.0 °C/km
700–500 LR7.9 °C/km
Total Totals53.2
LCL632 hPa
LFC645 hPa
EL187 hPa
Freezing Lvl12,310 ft