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

Denton County, Texas, United States

Last updated: 3:49 PM CDT  ·  Refresh
37°C
Feels like 39°
Clear
▲ 38°  /  ▼ 24°
Wind
11 mph SSE
Humidity
35%
Dew Point
19°
Pressure
29,23 inHg
Visibility
10 mi
UV Index
7,9
Cloud Cover
6%
Sunrise
7:10 AM
Sunset
7:37 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Denton County is currently clear at 37°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 1568 J/kg) — isolated convective development possible. Sunrise: 7:10AM · Sunset: 7:37PM.

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
44 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
37°
3%
4 PM
38°
5%
5 PM
38°
5%
6 PM
37°
5%
7 PM
35°
5%
8 PM
33°
5%
9 PM
33°
5%
10 PM
32°
3%
11 PM
31°
3%
12 AM
31°
3%
1 AM
29°
3%
2 AM
29°
3%
3 AM
28°
3%
4 AM
28°
3%
5 AM
24°
3%
6 AM
24°
3%
7 AM
25°
3%
8 AM
26°
3%
9 AM
28°
3%
10 AM
29°
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° 23°
Mostly Clear.
Wed
37° 23°
Clear.
Thu
36° 26°
Clear.
Fri
36° 26°
Clear.
Sat
36° 26°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 37° Clear 3% 11 mph SSE 35%
4 PM 38° Clear 5% 12 mph SSE 35%
5 PM 38° Clear 5% 11 mph SSE 36%
6 PM 37° Clear 5% 11 mph SSE 38%
7 PM 35° Clear 5% 10 mph SSE 39%
8 PM 33° Mostly Clear 5% 9 mph SSE 41%
9 PM 33° Mostly Clear 5% 9 mph SSE 44%
10 PM 32° Mostly Clear 3% 8 mph SSE 47%
11 PM 31° Mostly Clear 3% 8 mph SSE 51%
12 AM 31° Clear 3% 9 mph S 55%
1 AM 29° Clear 3% 9 mph S 60%
2 AM 29° Clear 3% 8 mph S 65%
3 AM 28° Clear 3% 8 mph S 69%
4 AM 28° Clear 3% 7 mph S 73%
5 AM 24° Clear 3% 6 mph S 76%
6 AM 24° Clear 3% 6 mph S 79%
7 AM 25° Clear 3% 7 mph S 76%
8 AM 26° Clear 3% 8 mph SSW 69%
9 AM 28° Clear 3% 10 mph SSW 64%
10 AM 29° Clear 3% 10 mph SSW 60%
11 AM 31° Clear 3% 10 mph S 55%
12 PM 32° Clear 3% 10 mph S 50%
1 PM 34° Clear 3% 10 mph S 48%
2 PM 34° Clear 3% 10 mph S 46%
15-Day Forecast
Today
9/13
Clear
5%
24°
38°
Mon
9/14
Clear
3%
24°
39°
Tue
9/15
Mostly Clear
3%
23°
39°
Wed
9/16
Clear
8%
23°
37°
Thu
9/17
Clear
9%
26°
36°
Fri
9/18
Clear
18%
26°
36°
Sat
9/19
Clear
19%
26°
36°
Sun
9/20
Clear
60%
23°
34°
Mon
9/21
Drizzle
60%
19°
33°
Tue
9/22
Drizzle
60%
18°
32°
Wed
9/23
Drizzle
42%
22°
32°
Thu
9/24
Drizzle
60%
23°
32°
Fri
9/25
Clear
60%
22°
32°
Sat
9/26
Clear
25%
22°
32°
Sun
9/27
Drizzle
60%
22°
32°
44
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
44 AQI 8.0 µg/m³
O3
Ground-level ozone
Dominant
44 AQI 47 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Mon 44 Good 44 44
Tue 42 Good 42 36
Wed 39 Good 37 39
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
SBCAPE1865 J/kg
MLCAPE430 J/kg
MUCAPE1865 J/kg
SBCIN-11 J/kg
MLCIN-127 J/kg
Lifted Index-4.9
Kinematics
0–6 km Shear15 kt
0–1 km Shear1 kt
Eff. Shear17 kt
0–1 km SRH3
0–3 km SRH29
Eff. SRH29
Storm Motion92° @ 14 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index29.4
Thermo & Levels
PWAT1.50 in
0–3 km LR8.5 °C/km
700–500 LR6.3 °C/km
Total Totals46.1
LCL770 hPa
LFC724 hPa
EL153 hPa
Freezing Lvl16,178 ft