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: 5:11 AM CDT  ·  Refresh
26°C
Feels like 26°
Clear
▲ 38°  /  ▼ 25°
Wind
10 mph S
Humidity
78%
Dew Point
21°
Pressure
29.46 inHg
Visibility
7 mi
UV Index
0.0
Cloud Cover
8%
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 1878 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
26°
3%
6 AM
24°
3%
7 AM
23°
3%
8 AM
25°
3%
9 AM
27°
3%
10 AM
28°
3%
11 AM
31°
3%
12 PM
32°
3%
1 PM
34°
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
34°
3%
10 PM
32°
3%
11 PM
31°
3%
12 AM
29°
3%
1 AM
28°
3%
2 AM
29°
3%
3 AM
28°
3%
4 AM
27°
3%
7-Day Forecast
Today
38° 25°
Clear.
Wed
40° 25°
Clear.
Thu
40° 24°
Clear.
Fri
39° 23°
Clear.
Sat
41° 25°
Mostly Cloudy.
Sun
41° 26°
Clear.
Mon
41° 25°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 26° Clear 3% 10 mph S 78%
6 AM 24° Clear 3% 10 mph S 77%
7 AM 23° Clear 3% 11 mph S 78%
8 AM 25° Clear 3% 12 mph SSW 73%
9 AM 27° Mostly Clear 3% 13 mph SSW 68%
10 AM 28° Mostly Clear 3% 14 mph SSW 61%
11 AM 31° Mostly Clear 3% 14 mph SSW 55%
12 PM 32° Mostly Clear 3% 14 mph SSW 48%
1 PM 34° Clear 3% 13 mph SSW 42%
2 PM 36° Clear 3% 13 mph SSW 39%
3 PM 37° Clear 3% 13 mph SSW 36%
4 PM 37° Mostly Clear 3% 13 mph SSW 34%
5 PM 37° Clear 3% 14 mph SSW 34%
6 PM 37° Clear 3% 14 mph S 35%
7 PM 37° Clear 4% 14 mph S 37%
8 PM 35° Clear 3% 13 mph S 40%
9 PM 34° Clear 3% 13 mph S 44%
10 PM 32° Clear 3% 13 mph S 49%
11 PM 31° Clear 3% 13 mph S 53%
12 AM 29° Clear 3% 14 mph S 57%
1 AM 28° Clear 3% 14 mph S 61%
2 AM 29° Clear 3% 14 mph S 64%
3 AM 28° Clear 3% 13 mph S 67%
4 AM 27° Clear 3% 13 mph SSW 70%
15-Day Forecast
Today
8/11
Clear
3%
25°
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
13%
26°
41°
Mon
8/17
Clear
12%
25°
41°
Tue
8/18
Clear
34%
27°
41°
Wed
8/19
Clear
15%
27°
41°
Thu
8/20
Mostly Clear
11%
27°
39°
Fri
8/21
Drizzle
60%
27°
41°
Sat
8/22
Clear
60%
27°
40°
Sun
8/23
Clear
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, 08:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE368 J/kg
MLCAPE33 J/kg
MUCAPE368 J/kg
SBCIN-333 J/kg
MLCIN0 J/kg
Lifted Index-1.4
Kinematics
0–6 km Shear5 kt
0–1 km Shear8 kt
Eff. Shear6 kt
0–1 km SRH-0
0–3 km SRH37
Eff. SRH18
Storm Motion89° @ 10 kt
0–1 km EHI-0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index26.4
Thermo & Levels
PWAT1.56 in
0–3 km LR4.4 °C/km
700–500 LR6.4 °C/km
Total Totals45.9
LCL941 hPa
LFC610 hPa
EL239 hPa
Freezing Lvl16,040 ft