Heat Advisory — Montague, TX, Cooke, TX, Grayson, TX, Fannin, TX, Lamar, TX, Jack, TX, Wise, TX, Denton, TX, Collin, TX, Hunt, TX, Delta, TX, Hopkins, TX, Palo Pinto, TX, Parker, TX, Tarrant, TX, Dallas, TX, Rockwall, TX, Kaufman, TX, Johnson, TX, Ellis, TX 8:00 PM

Lamar County, Texas, United States

Last updated: 5:11 AM CDT  ·  Refresh
25°C
Feels like 28°
Clear
▲ 37°  /  ▼ 24°
Wind
7 mph S
Humidity
82%
Dew Point
22°
Pressure
29.48 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
8%
Sunrise
6:41 AM
Sunset
8:12 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Lamar County is currently clear at 25°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 1896 J/kg) — isolated convective development possible. Sunrise: 6:41AM · Sunset: 8:12PM.

Alerts

Heat Advisory
Montague, TX, Cooke, TX, Grayson, TX, Fannin, TX, Lamar, TX, Jack, TX, Wise, TX, Denton, TX, Collin, TX, Hunt, TX, Delta, TX, Hopkins, TX, Palo Pinto, TX, Parker, TX, Tarrant, TX, Dallas, TX, Rockwall, TX, Kaufman, TX, Johnson, TX, Ellis, TX
Expires 8:00 PM
35 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
25°
3%
6 AM
22°
3%
7 AM
22°
3%
8 AM
24°
3%
9 AM
26°
3%
10 AM
28°
3%
11 AM
30°
3%
12 PM
32°
3%
1 PM
33°
3%
2 PM
36°
3%
3 PM
36°
3%
4 PM
37°
3%
5 PM
36°
3%
6 PM
36°
3%
7 PM
35°
3%
8 PM
33°
3%
9 PM
32°
3%
10 PM
31°
3%
11 PM
30°
3%
12 AM
28°
3%
1 AM
28°
3%
2 AM
29°
3%
3 AM
28°
3%
4 AM
27°
3%
7-Day Forecast
Today
37° 24°
Mostly Clear.
Wed
39° 24°
Clear.
Thu
39° 23°
Clear.
Fri
40° 23°
Clear.
Sat
41° 24°
Mostly Cloudy.
Sun
41° 23°
Mostly Clear.
Mon
41° 24°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 25° Clear 3% 7 mph S 82%
6 AM 22° Clear 3% 8 mph SSW 81%
7 AM 22° Clear 3% 8 mph SSW 80%
8 AM 24° Clear 3% 10 mph SSW 72%
9 AM 26° Clear 3% 11 mph SSW 65%
10 AM 28° Clear 3% 12 mph SSW 60%
11 AM 30° Clear 3% 12 mph SSW 55%
12 PM 32° Clear 3% 12 mph SSW 50%
1 PM 33° Mostly Clear 3% 11 mph SSW 45%
2 PM 36° Mostly Clear 3% 11 mph SSW 41%
3 PM 36° Mostly Clear 3% 11 mph SSW 38%
4 PM 37° Mostly Clear 3% 10 mph SSW 36%
5 PM 36° Mostly Clear 3% 10 mph SSW 38%
6 PM 36° Mostly Clear 3% 10 mph SSW 39%
7 PM 35° Mostly Clear 3% 10 mph S 41%
8 PM 33° Clear 3% 10 mph S 44%
9 PM 32° Clear 3% 9 mph S 47%
10 PM 31° Clear 3% 10 mph S 49%
11 PM 30° Clear 3% 10 mph S 51%
12 AM 28° Clear 3% 11 mph SSW 54%
1 AM 28° Clear 3% 12 mph SSW 56%
2 AM 29° Clear 3% 11 mph SSW 59%
3 AM 28° Clear 3% 11 mph SSW 63%
4 AM 27° Clear 3% 11 mph SSW 66%
15-Day Forecast
Today
8/11
Mostly Clear
3%
24°
37°
Wed
8/12
Clear
3%
24°
39°
Thu
8/13
Clear
3%
23°
39°
Fri
8/14
Clear
3%
23°
40°
Sat
8/15
Mostly Cloudy
3%
24°
41°
Sun
8/16
Mostly Clear
7%
23°
41°
Mon
8/17
Clear
8%
24°
41°
Tue
8/18
Mostly Clear
34%
24°
42°
Wed
8/19
Clear
35%
26°
41°
Thu
8/20
Partly Cloudy
22%
26°
40°
Fri
8/21
Clear
60%
26°
41°
Sat
8/22
Drizzle
60%
25°
40°
Sun
8/23
Drizzle
60%
26°
40°
Mon
8/24
Drizzle
60%
25°
39°
Tue
8/25
Drizzle
60%
24°
39°
35
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
25 AQI 4.5 µg/m³
O3
Ground-level ozone
Dominant
35 AQI 39 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 35 Good 35 25
Wed 46 Good 33 46
Thu 32 Good 32 26
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 Tue Aug 11, 08:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE624 J/kg
MLCAPE611 J/kg
MUCAPE969 J/kg
SBCIN-269 J/kg
MLCIN0 J/kg
Lifted Index-1.3
Kinematics
0–6 km Shear6 kt
0–1 km Shear9 kt
Eff. Shear11 kt
0–1 km SRH12
0–3 km SRH11
Eff. SRH-27
Storm Motion307° @ 11 kt
0–1 km EHI0.1
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index26.0
Thermo & Levels
PWAT1.61 in
0–3 km LR4.6 °C/km
700–500 LR5.9 °C/km
Total Totals43.9
LCL951 hPa
LFC649 hPa
EL202 hPa
Freezing Lvl16,250 ft