Heat Advisory — Sevier, AR, Howard, AR, Little River, AR, Hempstead, AR, Nevada, AR, Miller, AR, Lafayette, AR, Columbia, AR, Union, AR, Caddo, LA, Bossier, LA, Webster, LA, Claiborne, LA, Lincoln, LA, Union, LA, De Soto, LA, Red River, LA, Bienville, LA, Jackson, LA, Ouachita, LA, Sabine, LA, Natchitoches, LA, Winn, LA, Grant, LA, Caldwell, LA, La Salle, LA, McCurtain, OK, Red River, TX, Bowie, TX, Franklin, TX, Titus, TX, Camp, TX, Morris, TX, Cass, TX, Wood, TX, Upshur, TX, Marion, TX, Smith, TX, Gregg, TX, Harrison, TX, Cherokee, TX, Rusk, TX, Panola, TX, Nacogdoches, TX, Shelby, TX, Angelina, TX, San Augustine, TX, Sabine, TX 7:00 PM Heat Advisory — Sevier, AR, Howard, AR, Little River, AR, Hempstead, AR, Nevada, AR, Miller, AR, Lafayette, AR, Columbia, AR, Union, AR, Caddo, LA, Bossier, LA, Webster, LA, Claiborne, LA, Lincoln, LA, Union, LA, De Soto, LA, Red River, LA, Bienville, LA, Jackson, LA, Ouachita, LA, Sabine, LA, Natchitoches, LA, Winn, LA, Grant, LA, Caldwell, LA, La Salle, LA, McCurtain, OK, Red River, TX, Bowie, TX, Franklin, TX, Titus, TX, Camp, TX, Morris, TX, Cass, TX, Wood, TX, Upshur, TX, Marion, TX, Smith, TX, Gregg, TX, Harrison, TX, Cherokee, TX, Rusk, TX, Panola, TX, Nacogdoches, TX, Shelby, TX, Angelina, TX, San Augustine, TX, Sabine, TX 7:00 PM

Smith County, Texas, United States

Last updated: 2:43 PM CDT  ·  Refresh
36°C
Feels like 39°
Mostly Clear
▲ 38°  /  ▼ 24°
Wind
5 mph SSE
Humidity
40%
Dew Point
22°
Pressure
29.38 inHg
Visibility
10 mi
UV Index
8.8
Cloud Cover
14%
Sunrise
6:59 AM
Sunset
7:37 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Smith County is currently mostly clear at 36°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 2387 J/kg) — isolated convective development possible. Sunrise: 6:59AM · Sunset: 7:37PM.

Alerts

Heat Advisory
Sevier, AR, Howard, AR, Little River, AR, Hempstead, AR, Nevada, AR, Miller, AR, Lafayette, AR, Columbia, AR, Union, AR, Caddo, LA, Bossier, LA, Webster, LA, Claiborne, LA, Lincoln, LA, Union, LA, De Soto, LA, Red River, LA, Bienville, LA, Jackson, LA, Ouachita, LA, Sabine, LA, Natchitoches, LA, Winn, LA, Grant, LA, Caldwell, LA, La Salle, LA, McCurtain, OK, Red River, TX, Bowie, TX, Franklin, TX, Titus, TX, Camp, TX, Morris, TX, Cass, TX, Wood, TX, Upshur, TX, Marion, TX, Smith, TX, Gregg, TX, Harrison, TX, Cherokee, TX, Rusk, TX, Panola, TX, Nacogdoches, TX, Shelby, TX, Angelina, TX, San Augustine, TX, Sabine, TX
Expires 7:00 PM
Heat Advisory
Sevier, AR, Howard, AR, Little River, AR, Hempstead, AR, Nevada, AR, Miller, AR, Lafayette, AR, Columbia, AR, Union, AR, Caddo, LA, Bossier, LA, Webster, LA, Claiborne, LA, Lincoln, LA, Union, LA, De Soto, LA, Red River, LA, Bienville, LA, Jackson, LA, Ouachita, LA, Sabine, LA, Natchitoches, LA, Winn, LA, Grant, LA, Caldwell, LA, La Salle, LA, McCurtain, OK, Red River, TX, Bowie, TX, Franklin, TX, Titus, TX, Camp, TX, Morris, TX, Cass, TX, Wood, TX, Upshur, TX, Marion, TX, Smith, TX, Gregg, TX, Harrison, TX, Cherokee, TX, Rusk, TX, Panola, TX, Nacogdoches, TX, Shelby, TX, Angelina, TX, San Augustine, TX, Sabine, TX
Expires 7:00 PM
45 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
36°
27%
3 PM
37°
28%
4 PM
37°
13%
5 PM
37°
14%
6 PM
36°
19%
7 PM
34°
16%
8 PM
33°
16%
9 PM
31°
17%
10 PM
30°
18%
11 PM
29°
18%
12 AM
29°
16%
1 AM
28°
13%
2 AM
28°
13%
3 AM
27°
13%
4 AM
27°
13%
5 AM
24°
9%
6 AM
24°
9%
7 AM
25°
5%
8 AM
27°
12%
9 AM
31°
12%
10 AM
32°
12%
11 AM
33°
10%
12 PM
34°
10%
1 PM
36°
10%
7-Day Forecast
Today
38° 24°
Mostly Clear with a 27% chance of rain.
Tue
39° 24°
Mostly Clear.
Wed
38° 22°
Partly Cloudy with a 33% chance of rain.
Thu
34° 23°
Mostly Cloudy.
Fri
36° 21°
Clear.
Sat
37° 20°
Clear.
Sun
36° 21°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 36° Mostly Clear 27% 5 mph SSE 40%
3 PM 37° Mostly Clear 28% 7 mph SSE 41%
4 PM 37° Mostly Clear 13% 7 mph SSE 43%
5 PM 37° Mostly Clear 14% 7 mph SSE 45%
6 PM 36° Mostly Clear 19% 7 mph SSE 48%
7 PM 34° Mostly Clear 16% 6 mph SSE 53%
8 PM 33° Partly Cloudy 16% 4 mph SE 58%
9 PM 31° Partly Cloudy 17% 4 mph SSE 62%
10 PM 30° Partly Cloudy 18% 4 mph SSE 66%
11 PM 29° Mostly Clear 18% 4 mph S 69%
12 AM 29° Clear 16% 4 mph S 72%
1 AM 28° Clear 13% 4 mph S 74%
2 AM 28° Clear 13% 4 mph S 76%
3 AM 27° Clear 13% 3 mph SSW 77%
4 AM 27° Clear 13% 3 mph S 79%
5 AM 24° Clear 9% 3 mph S 81%
6 AM 24° Clear 9% 3 mph S 83%
7 AM 25° Clear 5% 3 mph S 79%
8 AM 27° Clear 12% 3 mph SSW 71%
9 AM 31° Clear 12% 3 mph SW 62%
10 AM 32° Clear 12% 3 mph SSW 56%
11 AM 33° Clear 10% 5 mph S 52%
12 PM 34° Mostly Clear 10% 6 mph SSE 47%
1 PM 36° Mostly Clear 10% 7 mph SSE 45%
15-Day Forecast
Today
9/7
Mostly Clear
27%
24°
38°
Tue
9/8
Mostly Clear
13%
24°
39°
Wed
9/9
Partly Cloudy
33%
22°
38°
Thu
9/10
Mostly Cloudy
8%
23°
34°
Fri
9/11
Clear
19%
21°
36°
Sat
9/12
Clear
9%
20°
37°
Sun
9/13
Clear
19%
21°
36°
Mon
9/14
Clear
25%
21°
36°
Tue
9/15
Drizzle
60%
21°
36°
Wed
9/16
Drizzle
60%
19°
35°
Thu
9/17
Drizzle
60%
18°
33°
Fri
9/18
Drizzle
60%
20°
33°
Sat
9/19
Drizzle
60%
19°
32°
Sun
9/20
Clear
60%
18°
31°
Mon
9/21
Drizzle
60%
18°
32°
45
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
41 AQI 7.3 µg/m³
O3
Ground-level ozone
Dominant
45 AQI 50 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Tue 45 Good 45 41
Wed 50 Good 37 50
Thu 45 Good 42 45
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 Mon Sep 7, 18:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE2775 J/kg
MLCAPE1801 J/kg
MUCAPE2775 J/kg
SBCIN0 J/kg
MLCIN-12 J/kg
Lifted Index-5.3
Kinematics
0–6 km Shear5 kt
0–1 km Shear2 kt
Eff. Shear9 kt
0–1 km SRH-2
0–3 km SRH-1
Eff. SRH-1
Storm Motion85° @ 20 kt
0–1 km EHI-0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index35.9
Thermo & Levels
PWAT2.10 in
0–3 km LR8.5 °C/km
700–500 LR5.3 °C/km
Total Totals46.8
LCL814 hPa
LFC995 hPa
EL148 hPa
Freezing Lvl15,735 ft