Heat Advisory — Benton, 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 8:00 PM

Fort Smith, Arkansas

Last updated: 9:03 AM CDT  ·  Refresh
29°C
Feels like 31°
Clear
▲ 39°  /  ▼ 24°
Wind
6 mph SSW
Humidity
62%
Dew Point
21°
Pressure
29.55 inHg
Visibility
10 mi
UV Index
6.2
Cloud Cover
1%
Sunrise
6:33 AM
Sunset
8:12 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Fort Smith is currently clear at 29°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 1554 J/kg) — isolated convective development possible. Sunrise: 6:33AM · Sunset: 8:12PM.

Alerts

Heat Advisory
Benton, 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
Expires 8:00 PM
37 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
29°
3%
10 AM
30°
3%
11 AM
32°
3%
12 PM
33°
3%
1 PM
34°
3%
2 PM
38°
3%
3 PM
38°
3%
4 PM
39°
3%
5 PM
38°
3%
6 PM
38°
3%
7 PM
37°
3%
8 PM
36°
3%
9 PM
34°
3%
10 PM
31°
3%
11 PM
30°
3%
12 AM
29°
3%
1 AM
29°
3%
2 AM
28°
3%
3 AM
27°
3%
4 AM
27°
3%
5 AM
27°
3%
6 AM
26°
3%
7 AM
25°
3%
8 AM
26°
3%
7-Day Forecast
Today
39° 24°
Clear.
Tue
41° 25°
Clear.
Wed
41° 24°
Mostly Clear.
Thu
41° 24°
Clear.
Fri
42° 23°
Clear.
Sat
42° 22°
Clear.
Sun
43° 22°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 29° Clear 3% 6 mph SSW 62%
10 AM 30° Clear 3% 9 mph SW 51%
11 AM 32° Clear 3% 9 mph SW 47%
12 PM 33° Clear 3% 7 mph SSW 42%
1 PM 34° Clear 3% 7 mph SSW 38%
2 PM 38° Clear 3% 8 mph SSW 37%
3 PM 38° Clear 3% 9 mph S 36%
4 PM 39° Clear 3% 10 mph S 34%
5 PM 38° Clear 3% 10 mph SSW 35%
6 PM 38° Mostly Clear 3% 10 mph S 36%
7 PM 37° Clear 3% 10 mph S 38%
8 PM 36° Clear 3% 9 mph S 42%
9 PM 34° Clear 3% 7 mph S 46%
10 PM 31° Clear 3% 6 mph SSE 50%
11 PM 30° Clear 3% 5 mph SSE 52%
12 AM 29° Clear 3% 4 mph SSE 54%
1 AM 29° Clear 3% 3 mph SSE 56%
2 AM 28° Clear 3% 3 mph SSE 58%
3 AM 27° Clear 3% 2 mph SSE 60%
4 AM 27° Clear 3% 2 mph S 62%
5 AM 27° Clear 3% 2 mph SSE 64%
6 AM 26° Clear 3% 3 mph SSE 66%
7 AM 25° Clear 3% 3 mph SSE 68%
8 AM 26° Clear 3% 4 mph S 64%
15-Day Forecast
Today
8/10
Clear
3%
24°
39°
Tue
8/11
Clear
3%
25°
41°
Wed
8/12
Mostly Clear
7%
24°
41°
Thu
8/13
Clear
3%
24°
41°
Fri
8/14
Clear
8%
23°
42°
Sat
8/15
Clear
8%
22°
42°
Sun
8/16
Clear
3%
22°
43°
Mon
8/17
Clear
18%
23°
43°
Tue
8/18
Clear
44%
23°
42°
Wed
8/19
Clear
36%
22°
42°
Thu
8/20
Clear
36%
24°
41°
Fri
8/21
Clear
60%
24°
41°
Sat
8/22
Drizzle
60%
24°
41°
Sun
8/23
Drizzle
60%
23°
39°
Mon
8/24
Clear
60%
22°
38°
37
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 4.6 µg/m³
O3
Ground-level ozone
Dominant
37 AQI 41 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Tue 37 Good 37 26
Wed 33 Good 33 25
Thu 34 Good 34 32
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 Aug 10, 11:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE1461 J/kg
MLCAPE610 J/kg
MUCAPE1461 J/kg
SBCIN0 J/kg
MLCIN0 J/kg
Lifted Index-5.2
Kinematics
0–6 km Shear10 kt
0–1 km Shear13 kt
Eff. Shear11 kt
0–1 km SRH-42
0–3 km SRH58
Eff. SRH58
Storm Motion142° @ 19 kt
0–1 km EHI-0.4
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index20.6
Thermo & Levels
PWAT1.41 in
0–3 km LR5.0 °C/km
700–500 LR7.8 °C/km
Total Totals49.7
LCL899 hPa
LFC1000 hPa
EL196 hPa
Freezing Lvl15,115 ft