Heat Advisory — Grayson, TX, Fannin, TX, Lamar, TX, Denton, TX, Collin, TX, Hunt, TX, Delta, TX, Hopkins, TX, Tarrant, TX, Dallas, TX, Rockwall, TX, Kaufman, TX, Van Zandt, TX, Rains, TX, Johnson, TX, Ellis, TX, Henderson, TX, Hill, TX, Navarro, TX, Freestone, TX, Anderson, TX, Bell, TX, McLennan, TX, Falls, TX, Limestone, TX, Leon, TX, Milam, TX, Robertson, TX 8:00 PM

Tarrant County, Texas, United States

Last updated: 3:49 PM CDT  ·  Refresh
37°C
Feels like 40°
Mostly Clear
▲ 38°  /  ▼ 24°
Wind
10 mph S
Humidity
37%
Dew Point
20°
Pressure
29,25 inHg
Visibility
10 mi
UV Index
7,9
Cloud Cover
14%
Sunrise
7:11 AM
Sunset
7:38 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Tarrant County is currently mostly clear at 37°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 1684 J/kg) — isolated convective development possible. Sunrise: 7:11AM · Sunset: 7:38PM.

Alerts

Heat Advisory
Grayson, TX, Fannin, TX, Lamar, TX, Denton, TX, Collin, TX, Hunt, TX, Delta, TX, Hopkins, TX, Tarrant, TX, Dallas, TX, Rockwall, TX, Kaufman, TX, Van Zandt, TX, Rains, TX, Johnson, TX, Ellis, TX, Henderson, TX, Hill, TX, Navarro, TX, Freestone, TX, Anderson, TX, Bell, TX, McLennan, TX, Falls, TX, Limestone, TX, Leon, TX, Milam, TX, Robertson, TX
Expires 8:00 PM
38 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
37°
3%
4 PM
38°
3%
5 PM
37°
3%
6 PM
36°
3%
7 PM
34°
3%
8 PM
33°
3%
9 PM
32°
3%
10 PM
31°
3%
11 PM
31°
3%
12 AM
29°
3%
1 AM
29°
3%
2 AM
28°
3%
3 AM
28°
3%
4 AM
27°
3%
5 AM
25°
3%
6 AM
24°
3%
7 AM
25°
3%
8 AM
26°
3%
9 AM
27°
3%
10 AM
30°
3%
11 AM
31°
3%
12 PM
32°
3%
1 PM
34°
3%
2 PM
34°
3%
7-Day Forecast
Today
38° 24°
Clear.
Mon
39° 24°
Clear.
Tue
39° 24°
Mostly Clear.
Wed
37° 24°
Clear.
Thu
36° 25°
Clear.
Fri
36° 25°
Clear.
Sat
36° 24°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 37° Mostly Clear 3% 10 mph S 37%
4 PM 38° Mostly Clear 3% 11 mph SSE 37%
5 PM 37° Clear 3% 12 mph SSE 37%
6 PM 36° Clear 3% 11 mph SSE 37%
7 PM 34° Clear 3% 10 mph SSE 40%
8 PM 33° Clear 3% 10 mph SSE 42%
9 PM 32° Clear 3% 10 mph SSE 46%
10 PM 31° Clear 3% 10 mph SSE 49%
11 PM 31° Clear 3% 10 mph SSE 51%
12 AM 29° Clear 3% 10 mph S 55%
1 AM 29° Clear 3% 10 mph S 61%
2 AM 28° Clear 3% 9 mph S 66%
3 AM 28° Clear 3% 9 mph S 70%
4 AM 27° Clear 3% 8 mph SSW 72%
5 AM 25° Clear 3% 8 mph SSW 74%
6 AM 24° Clear 3% 7 mph S 76%
7 AM 25° Clear 3% 7 mph S 73%
8 AM 26° Clear 3% 8 mph S 68%
9 AM 27° Clear 3% 8 mph SSW 65%
10 AM 30° Clear 3% 8 mph SSW 60%
11 AM 31° Clear 3% 8 mph S 54%
12 PM 32° Clear 3% 8 mph S 49%
1 PM 34° Clear 3% 9 mph S 46%
2 PM 34° Clear 3% 9 mph S 44%
15-Day Forecast
Today
9/13
Clear
3%
24°
38°
Mon
9/14
Clear
3%
24°
39°
Tue
9/15
Mostly Clear
8%
24°
39°
Wed
9/16
Clear
8%
24°
37°
Thu
9/17
Clear
3%
25°
36°
Fri
9/18
Clear
3%
25°
36°
Sat
9/19
Clear
19%
24°
36°
Sun
9/20
Clear
60%
24°
34°
Mon
9/21
Drizzle
60%
19°
33°
Tue
9/22
Drizzle
60%
18°
33°
Wed
9/23
Drizzle
60%
21°
33°
Thu
9/24
Drizzle
60%
22°
32°
Fri
9/25
Clear
60%
22°
32°
Sat
9/26
Clear
25%
21°
32°
Sun
9/27
Drizzle
60%
22°
32°
38
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
38 AQI 6.9 µg/m³
O3
Ground-level ozone
Dominant
38 AQI 41 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Mon 38 Good 38 38
Tue 38 Good 38 28
Wed 36 Good 36 32
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 dim. sept. 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
SBCAPE2436 J/kg
MLCAPE869 J/kg
MUCAPE2436 J/kg
SBCIN0 J/kg
MLCIN-47 J/kg
Lifted Index-5.0
Kinematics
0–6 km Shear11 kt
0–1 km Shear0 kt
Eff. Shear12 kt
0–1 km SRH-0
0–3 km SRH15
Eff. SRH15
Storm Motion111° @ 16 kt
0–1 km EHI-0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index30.2
Thermo & Levels
PWAT1.56 in
0–3 km LR8.6 °C/km
700–500 LR5.9 °C/km
Total Totals46.3
LCL780 hPa
LFC991 hPa
EL146 hPa
Freezing Lvl16,421 ft