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

Parker County, Texas, United States

Last updated: 3:51 PM CDT  ·  Refresh
36°C
Feels like 38°
Mostly Clear
▲ 38°  /  ▼ 23°
Wind
10 mph S
Humidity
37%
Dew Point
20°
Pressure
28.80 inHg
Visibility
10 mi
UV Index
7.9
Cloud Cover
13%
Sunrise
7:13 AM
Sunset
7:39 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Parker County is currently mostly clear at 36°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 1850 J/kg) — isolated convective development possible. Sunrise: 7:13AM · Sunset: 7:39PM.

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
35 AQI · Good Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
36°
3%
4 PM
38°
3%
5 PM
37°
3%
6 PM
36°
3%
7 PM
34°
3%
8 PM
33°
3%
9 PM
31°
3%
10 PM
31°
5%
11 PM
29°
5%
12 AM
29°
5%
1 AM
28°
5%
2 AM
27°
5%
3 AM
27°
5%
4 AM
26°
3%
5 AM
23°
3%
6 AM
23°
3%
7 AM
23°
3%
8 AM
25°
3%
9 AM
27°
3%
10 AM
29°
3%
11 AM
30°
3%
12 PM
31°
3%
1 PM
34°
3%
2 PM
35°
3%
7-Day Forecast
Today
38° 23°
Mostly Clear.
Mon
40° 23°
Mostly Clear.
Tue
39° 21°
Clear.
Wed
37° 21°
Clear with a 38% chance of rain.
Thu
36° 23°
Drizzle, 43% chance.
Fri
37° 23°
Clear.
Sat
36° 22°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 36° Mostly Clear 3% 10 mph S 37%
4 PM 38° Mostly Clear 3% 12 mph SSE 37%
5 PM 37° Mostly Clear 3% 12 mph SSE 37%
6 PM 36° Mostly Clear 3% 13 mph SSE 38%
7 PM 34° Mostly Clear 3% 12 mph SSE 41%
8 PM 33° Clear 3% 12 mph SSE 44%
9 PM 31° Clear 3% 12 mph SSE 46%
10 PM 31° Clear 5% 11 mph SSE 51%
11 PM 29° Clear 5% 10 mph S 56%
12 AM 29° Clear 5% 11 mph S 62%
1 AM 28° Clear 5% 11 mph S 68%
2 AM 27° Clear 5% 10 mph S 74%
3 AM 27° Clear 5% 10 mph S 78%
4 AM 26° Clear 3% 9 mph S 81%
5 AM 23° Clear 3% 9 mph S 84%
6 AM 23° Mostly Clear 3% 8 mph S 87%
7 AM 23° Mostly Clear 3% 9 mph SSW 82%
8 AM 25° Mostly Clear 3% 11 mph SSW 72%
9 AM 27° Mostly Clear 3% 12 mph SSW 65%
10 AM 29° Clear 3% 12 mph SSW 59%
11 AM 30° Clear 3% 12 mph SSW 53%
12 PM 31° Clear 3% 12 mph SSW 47%
1 PM 34° Clear 3% 12 mph SSW 45%
2 PM 35° Clear 3% 12 mph S 44%
15-Day Forecast
Today
9/13
Mostly Clear
3%
23°
38°
Mon
9/14
Mostly Clear
5%
23°
40°
Tue
9/15
Clear
8%
21°
39°
Wed
9/16
Clear
38%
21°
37°
Thu
9/17
Drizzle
43%
23°
36°
Fri
9/18
Clear
9%
23°
37°
Sat
9/19
Clear
19%
22°
36°
Sun
9/20
Clear
60%
22°
34°
Mon
9/21
Drizzle
60%
18°
33°
Tue
9/22
Drizzle
60%
17°
33°
Wed
9/23
Drizzle
60%
19°
33°
Thu
9/24
Drizzle
60%
21°
33°
Fri
9/25
Clear
60%
21°
32°
Sat
9/26
Clear
60%
20°
33°
Sun
9/27
Drizzle
60%
21°
32°
35
Good
U.S. Air Quality Index · Dominant: PM2.5
50 100 150 200

Air quality is satisfactory and poses little or no health risk.

Pollutant Breakdown · Today
PM2.5
Fine particulate matter
Dominant
35 AQI 6.3 µg/m³
O3
Ground-level ozone
33 AQI 36 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Mon 35 Good 33 35
Tue 34 Good 34 24
Wed 35 Good 35 31
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
SBCAPE2631 J/kg
MLCAPE1438 J/kg
MUCAPE2631 J/kg
SBCIN0 J/kg
MLCIN-17 J/kg
Lifted Index-5.6
Kinematics
0–6 km Shear9 kt
0–1 km Shear1 kt
Eff. Shear9 kt
0–1 km SRH-1
0–3 km SRH18
Eff. SRH18
Storm Motion115° @ 16 kt
0–1 km EHI-0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index36.0
Thermo & Levels
PWAT1.64 in
0–3 km LR8.7 °C/km
700–500 LR5.9 °C/km
Total Totals49.3
LCL776 hPa
LFC975 hPa
EL144 hPa
Freezing Lvl15,955 ft