Heat Advisory — Montague, TX, Cooke, TX, Grayson, TX, Fannin, TX, Lamar, TX, Jack, TX, Wise, TX, Denton, TX, Collin, TX, Hunt, TX, Delta, TX, Hopkins, TX, Palo Pinto, TX, Parker, TX, Tarrant, TX, Dallas, TX, Rockwall, TX, Kaufman, TX, Johnson, TX, Ellis, TX 8:00 PM

Rockwall County, Texas, United States

Last updated: 6:04 AM CDT  ·  Refresh
25°C
Feels like 26°
Clear
▲ 38°  /  ▼ 24°
Wind
11 mph S
Humidity
79%
Dew Point
21°
Pressure
29.47 inHg
Visibility
6 mi
UV Index
0.0
Cloud Cover
9%
Sunrise
6:46 AM
Sunset
8:14 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Rockwall County is currently clear at 25°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 1895 J/kg) — isolated convective development possible. Sunrise: 6:46AM · Sunset: 8:14PM.

Alerts

Heat Advisory
Montague, TX, Cooke, TX, Grayson, TX, Fannin, TX, Lamar, TX, Jack, TX, Wise, TX, Denton, TX, Collin, TX, Hunt, TX, Delta, TX, Hopkins, TX, Palo Pinto, TX, Parker, TX, Tarrant, TX, Dallas, TX, Rockwall, TX, Kaufman, TX, Johnson, TX, Ellis, TX
Expires 8:00 PM
34 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
25°
3%
7 AM
23°
3%
8 AM
25°
3%
9 AM
27°
3%
10 AM
28°
3%
11 AM
30°
3%
12 PM
32°
3%
1 PM
33°
3%
2 PM
36°
3%
3 PM
37°
3%
4 PM
37°
3%
5 PM
37°
3%
6 PM
37°
3%
7 PM
37°
4%
8 PM
35°
3%
9 PM
33°
3%
10 PM
31°
3%
11 PM
31°
3%
12 AM
30°
3%
1 AM
28°
3%
2 AM
28°
3%
3 AM
28°
3%
4 AM
27°
3%
5 AM
26°
3%
7-Day Forecast
Today
38° 24°
Mostly Clear.
Wed
40° 25°
Clear.
Thu
40° 24°
Clear.
Fri
39° 23°
Clear.
Sat
41° 25°
Mostly Cloudy.
Sun
41° 25°
Clear.
Mon
41° 24°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 25° Clear 3% 11 mph S 79%
7 AM 23° Clear 3% 10 mph S 78%
8 AM 25° Clear 3% 12 mph SSW 73%
9 AM 27° Clear 3% 13 mph SSW 68%
10 AM 28° Clear 3% 14 mph SSW 62%
11 AM 30° Clear 3% 14 mph SSW 56%
12 PM 32° Mostly Clear 3% 14 mph SSW 49%
1 PM 33° Clear 3% 14 mph SSW 43%
2 PM 36° Mostly Clear 3% 13 mph SSW 40%
3 PM 37° Mostly Clear 3% 13 mph SSW 36%
4 PM 37° Mostly Clear 3% 13 mph SSW 34%
5 PM 37° Partly Cloudy 3% 14 mph SSW 34%
6 PM 37° Mostly Clear 3% 14 mph S 35%
7 PM 37° Mostly Clear 4% 15 mph S 36%
8 PM 35° Clear 3% 14 mph S 40%
9 PM 33° Clear 3% 13 mph S 44%
10 PM 31° Clear 3% 12 mph S 48%
11 PM 31° Clear 3% 13 mph S 53%
12 AM 30° Clear 3% 14 mph S 57%
1 AM 28° Clear 3% 14 mph S 60%
2 AM 28° Clear 3% 14 mph S 63%
3 AM 28° Clear 3% 13 mph S 66%
4 AM 27° Clear 3% 12 mph SSW 69%
5 AM 26° Clear 3% 12 mph SSW 72%
15-Day Forecast
Today
8/11
Mostly Clear
3%
24°
38°
Wed
8/12
Clear
3%
25°
40°
Thu
8/13
Clear
3%
24°
40°
Fri
8/14
Clear
3%
23°
39°
Sat
8/15
Mostly Cloudy
3%
25°
41°
Sun
8/16
Clear
3%
25°
41°
Mon
8/17
Clear
13%
24°
41°
Tue
8/18
Clear
34%
27°
41°
Wed
8/19
Clear
34%
27°
41°
Thu
8/20
Mostly Clear
15%
26°
39°
Fri
8/21
Drizzle
60%
27°
41°
Sat
8/22
Clear
60%
27°
40°
Sun
8/23
Drizzle
60%
27°
39°
Mon
8/24
Drizzle
60%
27°
39°
Tue
8/25
Drizzle
60%
26°
38°
34
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
24 AQI 4.3 µg/m³
O3
Ground-level ozone
Dominant
34 AQI 38 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 34 Good 34 24
Wed 52 Moderate 33 52
Thu 31 Good 31 25
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 Tue Aug 11, 09:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE286 J/kg
MLCAPE28 J/kg
MUCAPE286 J/kg
SBCIN-322 J/kg
MLCIN0 J/kg
Lifted Index-1.3
Kinematics
0–6 km Shear6 kt
0–1 km Shear9 kt
Eff. Shear6 kt
0–1 km SRH17
0–3 km SRH37
Eff. SRH14
Storm Motion79° @ 9 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index27.0
Thermo & Levels
PWAT1.50 in
0–3 km LR4.4 °C/km
700–500 LR6.3 °C/km
Total Totals46.1
LCL947 hPa
LFC609 hPa
EL270 hPa
Freezing Lvl15,892 ft