Heat Advisory — Harper, OK, Woods, OK, Alfalfa, OK, Grant, OK, Kay, OK, Ellis, OK, Woodward, OK, Major, OK, Garfield, OK, Noble, OK, Roger Mills, OK, Dewey, OK, Custer, OK, Blaine, OK, Kingfisher, OK, Logan, OK, Beckham, OK, Washita, OK, Caddo, OK, Canadian, OK, Oklahoma, OK, Grady, OK, McClain, OK, Cleveland, OK, Pottawatomie, OK, Seminole, OK, Harmon, OK, Greer, OK, Kiowa, OK, Jackson, OK, Tillman, OK, Comanche, OK, Stephens, OK, Garvin, OK, Murray, OK, Pontotoc, OK, Cotton, OK, Jefferson, OK, Carter, OK, Johnston, OK, Love, OK, Marshall, OK, Hardeman, TX, Foard, TX, Wilbarger, TX, Wichita, TX, Knox, TX, Baylor, TX, Archer, TX, Clay, TX 9:00 PM

Major County, Oklahoma, United States

Last updated: 6:18 PM CDT  ·  Refresh
40°C
Feels like 41°
Mostly Clear
▲ 40°  /  ▼ 25°
Wind
10 mph SSE
Humidity
26%
Dew Point
16°
Pressure
28.35 inHg
Visibility
10 mi
UV Index
5.5
Cloud Cover
24%
Sunrise
6:38 AM
Sunset
8:41 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Major County is currently mostly clear at 40°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 542 J/kg) — isolated convective development possible. Sunrise: 6:38AM · Sunset: 8:41PM.

Alerts

Heat Advisory
Harper, OK, Woods, OK, Alfalfa, OK, Grant, OK, Kay, OK, Ellis, OK, Woodward, OK, Major, OK, Garfield, OK, Noble, OK, Roger Mills, OK, Dewey, OK, Custer, OK, Blaine, OK, Kingfisher, OK, Logan, OK, Beckham, OK, Washita, OK, Caddo, OK, Canadian, OK, Oklahoma, OK, Grady, OK, McClain, OK, Cleveland, OK, Pottawatomie, OK, Seminole, OK, Harmon, OK, Greer, OK, Kiowa, OK, Jackson, OK, Tillman, OK, Comanche, OK, Stephens, OK, Garvin, OK, Murray, OK, Pontotoc, OK, Cotton, OK, Jefferson, OK, Carter, OK, Johnston, OK, Love, OK, Marshall, OK, Hardeman, TX, Foard, TX, Wilbarger, TX, Wichita, TX, Knox, TX, Baylor, TX, Archer, TX, Clay, TX
Expires 9:00 PM
52 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
40°
28%
7 PM
39°
27%
8 PM
38°
27%
9 PM
37°
18%
10 PM
34°
17%
11 PM
33°
10%
12 AM
32°
9%
1 AM
31°
4%
2 AM
29°
4%
3 AM
29°
11%
4 AM
28°
11%
5 AM
28°
15%
6 AM
25°
11%
7 AM
25°
11%
8 AM
27°
14%
9 AM
28°
7%
10 AM
31°
19%
11 AM
32°
22%
12 PM
34°
11%
1 PM
36°
11%
2 PM
38°
12%
3 PM
39°
14%
4 PM
39°
14%
5 PM
38°
14%
7-Day Forecast
Tonight
40° 25°
Mostly Clear with a 28% chance of rain.
Thu
40° 25°
Partly Cloudy.
Fri
40° 23°
Clear with a 42% chance of rain.
Sat
33° 21°
Mostly Clear.
Sun
34° 18°
Clear.
Mon
37° 18°
Clear.
Tue
39° 21°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 40° Mostly Clear 28% 10 mph SSE 26%
7 PM 39° Mostly Clear 27% 11 mph SSE 26%
8 PM 38° Partly Cloudy 27% 10 mph SSE 29%
9 PM 37° Partly Cloudy 18% 9 mph SSE 32%
10 PM 34° Partly Cloudy 17% 10 mph SSE 36%
11 PM 33° Partly Cloudy 10% 11 mph SSE 38%
12 AM 32° Mostly Clear 9% 12 mph SSE 41%
1 AM 31° Mostly Clear 4% 12 mph SSE 43%
2 AM 29° Mostly Clear 4% 11 mph SSE 44%
3 AM 29° Partly Cloudy 11% 10 mph SSE 46%
4 AM 28° Partly Cloudy 11% 9 mph SSE 48%
5 AM 28° Mostly Clear 15% 8 mph SSE 53%
6 AM 25° Mostly Clear 11% 8 mph SE 56%
7 AM 25° Mostly Clear 11% 8 mph SE 56%
8 AM 27° Partly Cloudy 14% 8 mph SSE 54%
9 AM 28° Partly Cloudy 7% 9 mph SSE 50%
10 AM 31° Partly Cloudy 19% 10 mph SSE 45%
11 AM 32° Partly Cloudy 22% 10 mph S 40%
12 PM 34° Partly Cloudy 11% 10 mph S 34%
1 PM 36° Partly Cloudy 11% 10 mph S 29%
2 PM 38° Partly Cloudy 12% 11 mph S 27%
3 PM 39° Partly Cloudy 14% 12 mph S 25%
4 PM 39° Partly Cloudy 14% 12 mph S 25%
5 PM 38° Partly Cloudy 14% 13 mph S 27%
15-Day Forecast
Today
7/29
Mostly Clear
28%
25°
40°
Thu
7/30
Partly Cloudy
16%
25°
40°
Fri
7/31
Clear
42%
23°
40°
Sat
8/1
Mostly Clear
6%
21°
33°
Sun
8/2
Clear
3%
18°
34°
Mon
8/3
Clear
7%
18°
37°
Tue
8/4
Clear
3%
21°
39°
Wed
8/5
Partly Cloudy
16%
23°
39°
Thu
8/6
Clear
34%
25°
38°
Fri
8/7
Mostly Clear
34%
24°
38°
Sat
8/8
Clear
35%
23°
38°
Sun
8/9
Clear
60%
27°
40°
Mon
8/10
Drizzle
60%
27°
41°
Tue
8/11
Clear
25%
28°
41°
Wed
8/12
Drizzle
60%
27°
40°
52
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
52 AQI 10.0 µg/m³
O3
Ground-level ozone
47 AQI 52 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Thu 52 Moderate 47 52
Fri 57 Moderate 48 57
Sat 58 Moderate 58 54
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 Wed Jul 29, 22:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE612 J/kg
MLCAPE354 J/kg
MUCAPE612 J/kg
SBCIN0 J/kg
MLCIN0 J/kg
Lifted Index-2.8
Kinematics
0–6 km Shear36 kt
0–1 km Shear3 kt
Eff. Shear35 kt
0–1 km SRH14
0–3 km SRH-0
Eff. SRH-0
Storm Motion257° @ 20 kt
0–1 km EHI0.1
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index41.5
Thermo & Levels
PWAT1.97 in
0–3 km LR9.4 °C/km
700–500 LR6.2 °C/km
Total Totals50.1
LCL686 hPa
LFC960 hPa
EL196 hPa
Freezing Lvl15,676 ft