Heat Advisory — Benton, AR, Carroll, AR, North and Central Sebastian, AR, Southern Crawford, AR, Central and Southern Franklin, AR, Southern Sebastian, AR, Pushmataha, OK, Choctaw, OK, Washington, OK, Nowata, OK, Craig, OK, Ottawa, OK, Pawnee, OK, Tulsa, OK, Rogers, OK, Mayes, OK, Delaware, OK, Creek, OK, Okfuskee, OK, Okmulgee, OK, Wagoner, OK, Cherokee, OK, Muskogee, OK, McIntosh, OK, Pittsburg, OK, Haskell, OK, Latimer, OK, Western Osage, OK, Northern Sequoyah, OK, Northern Le Flore, OK, Northeast Osage, OK, Central and Southern Sequoyah, OK, Central Le Flore, OK, Southeast Osage, OK, Southern Le Flore, OK 8:00 PM

Fort Smith, Arkansas

Last updated: 4:13 AM CDT  ·  Refresh
26°C
Feels like 28°
Clear
▲ 38°  /  ▼ 25°
Wind
3 mph ESE
Humidity
71%
Dew Point
20°
Pressure
29.51 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
1%
Sunrise
6:34 AM
Sunset
8:10 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Fort Smith is currently clear at 26°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 1276 J/kg) — isolated convective development possible. Sunrise: 6:34AM · Sunset: 8:10PM.

Alerts

Heat Advisory
Benton, AR, Carroll, AR, North and Central Sebastian, AR, Southern Crawford, AR, Central and Southern Franklin, AR, Southern Sebastian, AR, Pushmataha, OK, Choctaw, OK, Washington, OK, Nowata, OK, Craig, OK, Ottawa, OK, Pawnee, OK, Tulsa, OK, Rogers, OK, Mayes, OK, Delaware, OK, Creek, OK, Okfuskee, OK, Okmulgee, OK, Wagoner, OK, Cherokee, OK, Muskogee, OK, McIntosh, OK, Pittsburg, OK, Haskell, OK, Latimer, OK, Western Osage, OK, Northern Sequoyah, OK, Northern Le Flore, OK, Northeast Osage, OK, Central and Southern Sequoyah, OK, Central Le Flore, OK, Southeast Osage, OK, Southern Le Flore, OK
Expires 8:00 PM
36 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
26°
3%
5 AM
25°
3%
6 AM
23°
3%
7 AM
23°
3%
8 AM
26°
3%
9 AM
28°
3%
10 AM
30°
3%
11 AM
32°
3%
12 PM
33°
3%
1 PM
34°
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
36°
3%
9 PM
35°
3%
10 PM
32°
3%
11 PM
31°
3%
12 AM
31°
3%
1 AM
30°
3%
2 AM
29°
3%
3 AM
29°
3%
7-Day Forecast
Today
38° 25°
Clear.
Wed
41° 26°
Mostly Clear.
Thu
41° 24°
Clear.
Fri
41° 24°
Mostly Clear.
Sat
42° 22°
Clear.
Sun
43° 22°
Clear.
Mon
43° 24°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 26° Clear 3% 3 mph ESE 71%
5 AM 25° Clear 3% 2 mph ESE 70%
6 AM 23° Clear 3% 2 mph ESE 72%
7 AM 23° Clear 3% 2 mph SSE 73%
8 AM 26° Clear 3% 5 mph SSW 67%
9 AM 28° Clear 3% 7 mph SW 61%
10 AM 30° Clear 3% 8 mph SW 54%
11 AM 32° Clear 3% 9 mph SW 48%
12 PM 33° Clear 3% 9 mph SSW 43%
1 PM 34° Clear 3% 9 mph SSW 38%
2 PM 37° Clear 3% 9 mph SSW 36%
3 PM 38° Mostly Clear 3% 10 mph SSW 34%
4 PM 38° Mostly Clear 3% 10 mph SSW 33%
5 PM 38° Mostly Clear 3% 10 mph SSW 34%
6 PM 38° Mostly Clear 3% 9 mph SSW 36%
7 PM 37° Clear 3% 9 mph SSW 38%
8 PM 36° Clear 3% 8 mph S 42%
9 PM 35° Clear 3% 8 mph S 46%
10 PM 32° Clear 3% 7 mph S 50%
11 PM 31° Clear 3% 6 mph S 53%
12 AM 31° Clear 3% 5 mph S 55%
1 AM 30° Clear 3% 5 mph S 57%
2 AM 29° Clear 3% 5 mph S 58%
3 AM 29° Clear 3% 5 mph S 60%
15-Day Forecast
Today
8/11
Clear
3%
25°
38°
Wed
8/12
Mostly Clear
3%
26°
41°
Thu
8/13
Clear
3%
24°
41°
Fri
8/14
Mostly Clear
3%
24°
41°
Sat
8/15
Clear
8%
22°
42°
Sun
8/16
Clear
8%
22°
43°
Mon
8/17
Clear
17%
24°
43°
Tue
8/18
Clear
18%
24°
43°
Wed
8/19
Clear
44%
25°
43°
Thu
8/20
Clear
19%
24°
43°
Fri
8/21
Clear
25%
24°
41°
Sat
8/22
Drizzle
60%
24°
41°
Sun
8/23
Drizzle
60%
23°
40°
Mon
8/24
Drizzle
60%
23°
39°
Tue
8/25
Drizzle
60%
23°
38°
36
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
26 AQI 4.7 µg/m³
O3
Ground-level ozone
Dominant
36 AQI 40 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 36 Good 36 26
Wed 33 Good 33 25
Thu 34 Good 34 29
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, 07:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE171 J/kg
MLCAPE370 J/kg
MUCAPE1217 J/kg
SBCIN-586 J/kg
MLCIN0 J/kg
Lifted Index0.8
Kinematics
0–6 km Shear1 kt
0–1 km Shear15 kt
Eff. Shear17 kt
0–1 km SRH89
0–3 km SRH80
Eff. SRH28
Storm Motion301° @ 12 kt
0–1 km EHI0.1
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index22.9
Thermo & Levels
PWAT1.42 in
0–3 km LR4.6 °C/km
700–500 LR5.9 °C/km
Total Totals42.3
LCL923 hPa
LFC417 hPa
EL245 hPa
Freezing Lvl16,161 ft