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

Delta County, Texas, United States

Last updated: 3:46 PM CDT  ·  Refresh
38°C
Feels like 39°
Clear
▲ 39°  /  ▼ 23°
Wind
9 mph S
Humidity
32%
Dew Point
19°
Pressure
29.44 inHg
Visibility
10 mi
UV Index
7.8
Cloud Cover
6%
Sunrise
7:04 AM
Sunset
7:31 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Delta County is currently clear at 38°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 1663 J/kg) — isolated convective development possible. Sunrise: 7:04AM · Sunset: 7:31PM.

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
38°
3%
4 PM
38°
3%
5 PM
39°
3%
6 PM
37°
3%
7 PM
36°
3%
8 PM
33°
3%
9 PM
32°
3%
10 PM
31°
3%
11 PM
30°
3%
12 AM
29°
3%
1 AM
28°
3%
2 AM
27°
3%
3 AM
27°
3%
4 AM
27°
3%
5 AM
23°
3%
6 AM
23°
3%
7 AM
24°
3%
8 AM
26°
3%
9 AM
28°
3%
10 AM
31°
3%
11 AM
32°
3%
12 PM
33°
3%
1 PM
35°
3%
2 PM
35°
3%
7-Day Forecast
Today
39° 23°
Mostly Clear.
Mon
39° 23°
Mostly Clear.
Tue
40° 23°
Clear.
Wed
38° 23°
Clear.
Thu
38° 23°
Clear.
Fri
38° 23°
Clear.
Sat
39° 23°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 38° Clear 3% 9 mph S 32%
4 PM 38° Mostly Clear 3% 8 mph S 32%
5 PM 39° Mostly Clear 3% 9 mph S 33%
6 PM 37° Partly Cloudy 3% 8 mph SSE 34%
7 PM 36° Partly Cloudy 3% 8 mph SSE 38%
8 PM 33° Partly Cloudy 3% 8 mph SSE 43%
9 PM 32° Partly Cloudy 3% 9 mph SSE 47%
10 PM 31° Partly Cloudy 3% 8 mph SSE 52%
11 PM 30° Partly Cloudy 3% 8 mph SSE 57%
12 AM 29° Partly Cloudy 3% 8 mph S 62%
1 AM 28° Mostly Clear 3% 8 mph S 67%
2 AM 27° Mostly Clear 3% 7 mph S 72%
3 AM 27° Mostly Clear 3% 7 mph S 77%
4 AM 27° Mostly Clear 3% 6 mph S 81%
5 AM 23° Mostly Clear 3% 6 mph S 84%
6 AM 23° Clear 3% 6 mph S 87%
7 AM 24° Clear 3% 6 mph SSW 81%
8 AM 26° Clear 3% 7 mph SSW 72%
9 AM 28° Clear 3% 8 mph SSW 65%
10 AM 31° Clear 3% 8 mph SSW 59%
11 AM 32° Clear 3% 8 mph SSW 55%
12 PM 33° Clear 3% 9 mph SSW 50%
1 PM 35° Clear 3% 9 mph SSW 48%
2 PM 35° Mostly Clear 3% 10 mph S 47%
15-Day Forecast
Today
9/13
Mostly Clear
3%
23°
39°
Mon
9/14
Mostly Clear
3%
23°
39°
Tue
9/15
Clear
3%
23°
40°
Wed
9/16
Clear
8%
23°
38°
Thu
9/17
Clear
9%
23°
38°
Fri
9/18
Clear
18%
23°
38°
Sat
9/19
Clear
19%
23°
39°
Sun
9/20
Clear
60%
22°
35°
Mon
9/21
Drizzle
60%
18°
33°
Tue
9/22
Drizzle
60%
16°
32°
Wed
9/23
Drizzle
60%
17°
32°
Thu
9/24
Drizzle
60%
19°
32°
Fri
9/25
Clear
25%
19°
33°
Sat
9/26
Drizzle
60%
19°
32°
Sun
9/27
Drizzle
60%
19°
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
34 AQI 6.3 µg/m³
O3
Ground-level ozone
Dominant
38 AQI 41 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Mon 38 Good 38 34
Tue 34 Good 34 30
Wed 35 Good 35 29
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
SBCAPE1580 J/kg
MLCAPE352 J/kg
MUCAPE1580 J/kg
SBCIN0 J/kg
MLCIN-44 J/kg
Lifted Index-4.2
Kinematics
0–6 km Shear15 kt
0–1 km Shear1 kt
Eff. Shear16 kt
0–1 km SRH-2
0–3 km SRH19
Eff. SRH19
Storm Motion89° @ 14 kt
0–1 km EHI-0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index33.3
Thermo & Levels
PWAT1.83 in
0–3 km LR8.9 °C/km
700–500 LR6.0 °C/km
Total Totals46.9
LCL760 hPa
LFC997 hPa
EL165 hPa
Freezing Lvl15,958 ft