Heat Advisory — Montague, TX, Cooke, TX, Grayson, TX, Fannin, TX, Lamar, TX, Young, 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, Van Zandt, TX, Rains, TX, Hood, TX, Somervell, TX, Johnson, TX, Ellis, TX, Henderson, TX, Navarro, TX, Freestone, TX, Anderson, TX, Leon, TX 8:00 PM

Lamar County, Texas, United States

Last updated: 12:21 AM CDT  ·  Refresh
27°C
Feels like 28°
Clear
▲ 39°  /  ▼ 24°
Wind
5 mph S
Humidity
57%
Dew Point
19°
Pressure
29.37 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
1%
Sunrise
6:31 AM
Sunset
8:26 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Lamar County is currently clear at 27°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 706 J/kg) — isolated convective development possible. Sunrise: 6:31AM · Sunset: 8:26PM.

Alerts

Heat Advisory
Montague, TX, Cooke, TX, Grayson, TX, Fannin, TX, Lamar, TX, Young, 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, Van Zandt, TX, Rains, TX, Hood, TX, Somervell, TX, Johnson, TX, Ellis, TX, Henderson, TX, Navarro, TX, Freestone, TX, Anderson, TX, Leon, TX
Expires 8:00 PM
54 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
27°
8%
1 AM
27°
8%
2 AM
27°
8%
3 AM
26°
3%
4 AM
26°
3%
5 AM
24°
3%
6 AM
23°
3%
7 AM
23°
3%
8 AM
26°
3%
9 AM
29°
3%
10 AM
31°
3%
11 AM
33°
3%
12 PM
34°
3%
1 PM
36°
3%
2 PM
37°
3%
3 PM
38°
3%
4 PM
38°
3%
5 PM
38°
3%
6 PM
38°
3%
7 PM
37°
3%
8 PM
35°
3%
9 PM
33°
3%
10 PM
31°
3%
11 PM
31°
3%
7-Day Forecast
Today
39° 24°
Clear.
Tue
41° 24°
Mostly Cloudy.
Wed
39° 26°
Mostly Clear.
Thu
40° 26°
Clear.
Fri
41° 26°
Rain, 21% chance.
Sat
38° 23°
Clear.
Sun
37° 21°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 27° Clear 8% 5 mph S 57%
1 AM 27° Clear 8% 6 mph S 57%
2 AM 27° Clear 8% 6 mph S 59%
3 AM 26° Clear 3% 6 mph SSW 60%
4 AM 26° Clear 3% 6 mph SSW 64%
5 AM 24° Clear 3% 6 mph SSW 68%
6 AM 23° Clear 3% 6 mph SSW 73%
7 AM 23° Clear 3% 7 mph SSW 73%
8 AM 26° Clear 3% 9 mph SW 67%
9 AM 29° Clear 3% 10 mph SW 60%
10 AM 31° Clear 3% 10 mph SW 54%
11 AM 33° Clear 3% 9 mph SW 48%
12 PM 34° Mostly Clear 3% 8 mph SW 42%
1 PM 36° Mostly Clear 3% 8 mph SSW 37%
2 PM 37° Mostly Clear 3% 8 mph SSW 36%
3 PM 38° Clear 3% 9 mph SSW 34%
4 PM 38° Clear 3% 8 mph SSW 33%
5 PM 38° Clear 3% 8 mph SSW 35%
6 PM 38° Clear 3% 7 mph S 37%
7 PM 37° Clear 3% 7 mph S 39%
8 PM 35° Clear 3% 6 mph S 42%
9 PM 33° Clear 3% 6 mph S 45%
10 PM 31° Clear 3% 6 mph S 47%
11 PM 31° Clear 3% 7 mph S 48%
15-Day Forecast
Today
7/27
Clear
8%
24°
39°
Tue
7/28
Mostly Cloudy
3%
24°
41°
Wed
7/29
Mostly Clear
7%
26°
39°
Thu
7/30
Clear
16%
26°
40°
Fri
7/31
Rain
21%
26°
41°
Sat
8/1
Clear
8%
23°
38°
Sun
8/2
Clear
8%
21°
37°
Mon
8/3
Clear
18%
21°
38°
Tue
8/4
Clear
19%
23°
39°
Wed
8/5
Clear
27%
25°
39°
Thu
8/6
Drizzle
60%
26°
39°
Fri
8/7
Drizzle
60%
24°
38°
Sat
8/8
Drizzle
60%
24°
38°
Sun
8/9
Drizzle
60%
24°
38°
Mon
8/10
Drizzle
60%
25°
38°
54
Moderate
U.S. Air Quality Index · Dominant: PM2.5
50 100 150 200

Air quality is acceptable. Unusually sensitive people should consider limiting prolonged outdoor exertion.

Pollutant Breakdown · Today
PM2.5
Fine particulate matter
Dominant
54 AQI 10.8 µg/m³
O3
Ground-level ozone
37 AQI 40 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 54 Moderate 37 54
Tue 39 Good 37 39
Wed 46 Good 43 46
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 LCL0°C Temperature (°C) Pressure (hPa)
Temp Dewpoint Parcel (SB) CAPE CIN Dry adiabat Moist adiabat Mixing ratio
RAP
Valid Mon Jul 27, 04:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE0 J/kg
MLCAPE56 J/kg
MUCAPE434 J/kg
SBCIN-4685 J/kg
MLCIN0 J/kg
Lifted Index4.4
Kinematics
0–6 km Shear15 kt
0–1 km Shear11 kt
Eff. Shear—
0–1 km SRH68
0–3 km SRH31
Eff. SRH—
Storm Motion272° @ 17 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)—
Supercell—
K-Index30.8
Thermo & Levels
PWAT1.60 in
0–3 km LR5.0 °C/km
700–500 LR5.0 °C/km
Total Totals38.1
LCL876 hPa
LFC—
EL—
Freezing Lvl18,343 ft