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

Dallas, Texas

Last updated: 4:52 PM CDT  ·  Refresh
37°C
Feels like 39°
Clear
▲ 38°  /  ▼ 26°
Wind
10 mph S
Humidity
34%
Dew Point
19°
Pressure
29.41 inHg
Visibility
10 mi
UV Index
6.6
Cloud Cover
5%
Sunrise
7:09 AM
Sunset
7:35 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Dallas is currently clear at 37°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 1834 J/kg) — isolated convective development possible. Sunrise: 7:09AM · Sunset: 7:35PM.

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
34 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
37°
4%
5 PM
37°
4%
6 PM
36°
4%
7 PM
34°
4%
8 PM
33°
4%
9 PM
32°
4%
10 PM
31°
3%
11 PM
31°
3%
12 AM
30°
3%
1 AM
29°
3%
2 AM
29°
3%
3 AM
28°
3%
4 AM
28°
3%
5 AM
26°
3%
6 AM
26°
3%
7 AM
26°
3%
8 AM
27°
3%
9 AM
28°
3%
10 AM
29°
3%
11 AM
32°
3%
12 PM
33°
3%
1 PM
34°
3%
2 PM
35°
3%
3 PM
36°
3%
7-Day Forecast
Today
38° 26°
Clear.
Mon
39° 26°
Clear.
Tue
40° 24°
Clear.
Wed
37° 25°
Mostly Clear.
Thu
36° 26°
Partly Cloudy.
Fri
37° 24°
Clear.
Sat
36° 24°
Mostly Clear.
TimeTempConditionsPrecipWindHumidity
Now 37° Clear 4% 10 mph S 34%
5 PM 37° Clear 4% 9 mph S 34%
6 PM 36° Clear 4% 9 mph S 35%
7 PM 34° Clear 4% 8 mph S 39%
8 PM 33° Clear 4% 9 mph SSE 43%
9 PM 32° Clear 4% 9 mph SSE 48%
10 PM 31° Clear 3% 9 mph SSE 49%
11 PM 31° Clear 3% 10 mph SSE 52%
12 AM 30° Clear 3% 9 mph S 55%
1 AM 29° Clear 3% 8 mph S 58%
2 AM 29° Clear 3% 7 mph S 62%
3 AM 28° Clear 3% 7 mph S 65%
4 AM 28° Clear 3% 7 mph S 67%
5 AM 26° Clear 3% 6 mph S 68%
6 AM 26° Clear 3% 6 mph S 69%
7 AM 26° Clear 3% 7 mph S 68%
8 AM 27° Clear 3% 8 mph SSW 66%
9 AM 28° Clear 3% 8 mph SSW 64%
10 AM 29° Clear 3% 8 mph SSW 60%
11 AM 32° Clear 3% 8 mph S 55%
12 PM 33° Clear 3% 8 mph S 50%
1 PM 34° Clear 3% 8 mph S 48%
2 PM 35° Clear 3% 9 mph S 46%
3 PM 36° Clear 3% 9 mph S 44%
15-Day Forecast
Today
9/13
Clear
4%
26°
38°
Mon
9/14
Clear
3%
26°
39°
Tue
9/15
Clear
7%
24°
40°
Wed
9/16
Mostly Clear
3%
25°
37°
Thu
9/17
Partly Cloudy
3%
26°
36°
Fri
9/18
Clear
3%
24°
37°
Sat
9/19
Mostly Clear
17%
24°
36°
Sun
9/20
Clear
49%
24°
34°
Mon
9/21
Drizzle
60%
23°
34°
Tue
9/22
Drizzle
68%
19°
33°
Wed
9/23
Drizzle
49%
21°
33°
Thu
9/24
Drizzle
60%
22°
32°
Fri
9/25
Clear
60%
22°
32°
Sat
9/26
Clear
25%
22°
32°
Sun
9/27
Drizzle
60%
22°
32°
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
33 AQI 6.0 µg/m³
O3
Ground-level ozone
Dominant
34 AQI 38 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Mon 34 Good 34 33
Tue 35 Good 35 26
Wed 34 Good 34 28
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, 20:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE1267 J/kg
MLCAPE217 J/kg
MUCAPE1285 J/kg
SBCIN-22 J/kg
MLCIN-230 J/kg
Lifted Index-3.1
Kinematics
0–6 km Shear13 kt
0–1 km Shear10 kt
Eff. Shear17 kt
0–1 km SRH-38
0–3 km SRH28
Eff. SRH28
Storm Motion114° @ 22 kt
0–1 km EHI-0.3
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index31.5
Thermo & Levels
PWAT1.69 in
0–3 km LR8.5 °C/km
700–500 LR5.9 °C/km
Total Totals48.0
LCL768 hPa
LFC712 hPa
EL171 hPa
Freezing Lvl16,650 ft