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

Caldwell County, Texas, United States

Last updated: 3:50 PM CDT  ·  Refresh
98°F
Feels like 104°
Partly Cloudy
▲ 98°  /  ▼ 75°
Wind
11 mph SSE
Humidity
39%
Dew Point
70°
Pressure
29.46 inHg
Visibility
10 mi
UV Index
7.3
Cloud Cover
50%
Sunrise
7:13 AM
Sunset
7:37 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Caldwell County is currently partly cloudy at 98°F. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 2604 J/kg) — isolated convective development possible. Sunrise: 7:13AM · Sunset: 7:37PM.

27 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
98°
3%
4 PM
98°
5%
5 PM
95°
5%
6 PM
91°
24%
7 PM
89°
5%
8 PM
87°
5%
9 PM
84°
5%
10 PM
82°
5%
11 PM
81°
5%
12 AM
80°
5%
1 AM
80°
5%
2 AM
79°
13%
3 AM
79°
12%
4 AM
79°
12%
5 AM
75°
23%
6 AM
75°
24%
7 AM
76°
24%
8 AM
78°
14%
9 AM
80°
14%
10 AM
86°
10%
11 AM
88°
10%
12 PM
89°
7%
1 PM
93°
7%
2 PM
92°
7%
7-Day Forecast
Today
98° 75°
Mostly Cloudy with a 24% chance of rain.
Mon
102° 75°
Partly Cloudy with a 24% chance of rain.
Tue
102° 72°
Clear.
Wed
95° 76°
Partly Cloudy with a 47% chance of rain.
Thu
96° 73°
Drizzle, 50% chance.
Fri
99° 71°
Clear.
Sat
98° 71°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 98° Partly Cloudy 3% 11 mph SSE 39%
4 PM 98° Partly Cloudy 5% 14 mph SE 46%
5 PM 95° Overcast 5% 14 mph SE 55%
6 PM 91° Overcast 24% 14 mph SE 60%
7 PM 89° Overcast 5% 12 mph SE 65%
8 PM 87° Overcast 5% 11 mph SE 70%
9 PM 84° Mostly Cloudy 5% 10 mph SSE 74%
10 PM 82° Mostly Cloudy 5% 10 mph SSE 77%
11 PM 81° Partly Cloudy 5% 9 mph SSE 80%
12 AM 80° Mostly Cloudy 5% 9 mph SSE 81%
1 AM 80° Partly Cloudy 5% 7 mph S 83%
2 AM 79° Partly Cloudy 13% 6 mph S 85%
3 AM 79° Mostly Cloudy 12% 5 mph S 86%
4 AM 79° Partly Cloudy 12% 4 mph S 86%
5 AM 75° Partly Cloudy 23% 3 mph S 87%
6 AM 75° Mostly Cloudy 24% 2 mph S 88%
7 AM 76° Mostly Cloudy 24% 3 mph S 84%
8 AM 78° Partly Cloudy 14% 5 mph S 76%
9 AM 80° Partly Cloudy 14% 6 mph S 70%
10 AM 86° Partly Cloudy 10% 6 mph S 65%
11 AM 88° Partly Cloudy 10% 7 mph S 60%
12 PM 89° Partly Cloudy 7% 7 mph S 55%
1 PM 93° Partly Cloudy 7% 8 mph S 56%
2 PM 92° Partly Cloudy 7% 9 mph SSE 58%
15-Day Forecast
Today
9/13
Mostly Cloudy
24%
75°
98°
Mon
9/14
Partly Cloudy
24%
75°
102°
Tue
9/15
Clear
8%
72°
102°
Wed
9/16
Partly Cloudy
47%
76°
95°
Thu
9/17
Drizzle
50%
73°
96°
Fri
9/18
Clear
3%
71°
99°
Sat
9/19
Clear
19%
71°
98°
Sun
9/20
Clear
60%
71°
98°
Mon
9/21
Drizzle
60%
73°
96°
Tue
9/22
Drizzle
60%
71°
96°
Wed
9/23
Drizzle
60%
71°
93°
Thu
9/24
Drizzle
60%
71°
93°
Fri
9/25
Drizzle
60%
70°
92°
Sat
9/26
Drizzle
60%
70°
92°
Sun
9/27
Drizzle
60%
69°
92°
27
Good
U.S. Air Quality Index · Dominant: O3
50 100 150 200

Air quality is satisfactory and poses little or no health risk.

Pollutant Breakdown · Today
PM2.5
Fine particulate matter
23 AQI 4.2 µg/m³
O3
Ground-level ozone
Dominant
27 AQI 29 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Mon 27 Good 27 23
Tue 29 Good 29 20
Wed 49 Good 31 49
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, 19:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE2722 J/kg
MLCAPE1545 J/kg
MUCAPE2722 J/kg
SBCIN0 J/kg
MLCIN-12 J/kg
Lifted Index-5.3
Kinematics
0–6 km Shear2 kt
0–1 km Shear4 kt
Eff. Shear9 kt
0–1 km SRH-0
0–3 km SRH-4
Eff. SRH-4
Storm Motion93° @ 14 kt
0–1 km EHI-0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index36.1
Thermo & Levels
PWAT1.86 in
0–3 km LR8.8 °C/km
700–500 LR5.5 °C/km
Total Totals48.2
LCL796 hPa
LFC997 hPa
EL150 hPa
Freezing Lvl16,060 ft