Extreme Heat Warning — 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, 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 9:00 PM Heat Advisory — 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, 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 8:00 PM

Marion County, Texas, 75657, United States

Last updated: 5:07 PM CDT  ·  Refresh
37°C
Feels like 39°
Mostly Cloudy
▲ 38°  /  ▼ 23°
Wind
4 mph NNE
Humidity
37%
Dew Point
18°
Pressure
29.70 inHg
Visibility
10 mi
UV Index
4.9
Cloud Cover
70%
Sunrise
6:44 AM
Sunset
7:55 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Marion County is currently mostly cloudy at 36°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 1302 J/kg) — isolated convective development possible. Sunrise: 6:44AM · Sunset: 7:55PM.

Alerts

Extreme Heat Warning
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, 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 9:00 PM
Heat Advisory
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, 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 8:00 PM
55 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
37°
17%
6 PM
36°
16%
7 PM
34°
16%
8 PM
33°
16%
9 PM
32°
19%
10 PM
28°
11%
11 PM
28°
11%
12 AM
27°
9%
1 AM
27°
9%
2 AM
27°
9%
3 AM
26°
9%
4 AM
25°
9%
5 AM
25°
9%
6 AM
23°
5%
7 AM
23°
5%
8 AM
26°
5%
9 AM
28°
5%
10 AM
29°
5%
11 AM
30°
5%
12 PM
33°
3%
1 PM
34°
3%
2 PM
36°
5%
3 PM
36°
16%
4 PM
38°
21%
7-Day Forecast
Today
38° 23°
Mostly Cloudy.
Sat
41° 23°
Mostly Clear with a 30% chance of rain.
Sun
41° 22°
Partly Cloudy.
Mon
40° 26°
Partly Cloudy with a 51% chance of rain.
Tue
38° 23°
Mostly Clear with a 22% chance of rain.
Wed
38° 24°
Rain, 80% chance.
Thu
39° 25°
Drizzle, 53% chance.
TimeTempConditionsPrecipWindHumidity
Now 37° Mostly Cloudy 17% 4 mph NNE 37%
6 PM 36° Overcast 16% 4 mph NNW 42%
7 PM 34° Overcast 16% 4 mph NW 47%
8 PM 33° Overcast 16% 4 mph WNW 49%
9 PM 32° Mostly Cloudy 19% 4 mph NNE 52%
10 PM 28° Partly Cloudy 11% 4 mph E 55%
11 PM 28° Partly Cloudy 11% 4 mph ESE 57%
12 AM 27° Partly Cloudy 9% 4 mph SSE 59%
1 AM 27° Partly Cloudy 9% 4 mph SSE 61%
2 AM 27° Mostly Clear 9% 3 mph SSE 65%
3 AM 26° Mostly Clear 9% 3 mph SSW 68%
4 AM 25° Mostly Clear 9% 3 mph SSW 71%
5 AM 25° Mostly Clear 9% 3 mph SW 72%
6 AM 23° Mostly Clear 5% 3 mph SW 72%
7 AM 23° Mostly Clear 5% 3 mph SW 72%
8 AM 26° Clear 5% 3 mph WSW 65%
9 AM 28° Clear 5% 3 mph WSW 55%
10 AM 29° Clear 5% 3 mph WSW 49%
11 AM 30° Mostly Clear 5% 3 mph SW 46%
12 PM 33° Mostly Clear 3% 3 mph SSW 43%
1 PM 34° Mostly Clear 3% 3 mph S 40%
2 PM 36° Clear 5% 2 mph S 38%
3 PM 36° Clear 16% 3 mph S 35%
4 PM 38° Clear 21% 4 mph SSE 33%
15-Day Forecast
Today
8/21
Mostly Cloudy
17%
23°
38°
Sat
8/22
Mostly Clear
30%
23°
41°
Sun
8/23
Partly Cloudy
12%
22°
41°
Mon
8/24
Partly Cloudy
51%
26°
40°
Tue
8/25
Mostly Clear
22%
23°
38°
Wed
8/26
Rain
80%
24°
38°
Thu
8/27
Drizzle
53%
25°
39°
Fri
8/28
Mostly Clear
19%
22°
39°
Sat
8/29
Mostly Clear
27%
24°
38°
Sun
8/30
Mostly Clear
40%
23°
40°
Mon
8/31
Partly Cloudy
60%
25°
39°
Tue
9/1
Clear
25%
24°
38°
Wed
9/2
Drizzle
60%
24°
38°
Thu
9/3
Drizzle
60%
24°
39°
Fri
9/4
Clear
60%
23°
38°
55
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
55 AQI 11.5 µg/m³
O3
Ground-level ozone
48 AQI 52 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Sat 55 Moderate 48 55
Sun 49 Good 38 49
Mon 59 Moderate 58 59
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 Fri Aug 21, 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
SBCAPE1429 J/kg
MLCAPE1143 J/kg
MUCAPE1429 J/kg
SBCIN-97 J/kg
MLCIN-130 J/kg
Lifted Index-3.8
Kinematics
0–6 km Shear12 kt
0–1 km Shear7 kt
Eff. Shear9 kt
0–1 km SRH23
0–3 km SRH42
Eff. SRH42
Storm Motion18° @ 19 kt
0–1 km EHI0.2
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index34.5
Thermo & Levels
PWAT1.91 in
0–3 km LR8.0 °C/km
700–500 LR6.6 °C/km
Total Totals49.2
LCL775 hPa
LFC680 hPa
EL171 hPa
Freezing Lvl15,125 ft