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, Payne, OK, Beckham, OK, Washita, OK, Caddo, OK, Canadian, OK, Oklahoma, OK, Lincoln, OK, Grady, OK, McClain, OK, Cleveland, OK, Pottawatomie, OK, Seminole, OK, Hughes, OK, Harmon, OK, Greer, OK, Kiowa, OK, Jackson, OK, Tillman, OK, Comanche, OK, Stephens, OK, Garvin, OK, Murray, OK, Pontotoc, OK, Coal, OK, Cotton, OK, Jefferson, OK, Carter, OK, Johnston, OK, Atoka, OK, Love, OK, Marshall, OK, Bryan, OK, Hardeman, TX, Foard, TX, Wilbarger, TX, Wichita, TX, Knox, TX, Baylor, TX, Archer, TX, Clay, TX 8:00 PM

Harmon County, Oklahoma, United States

Last updated: 4:14 AM CDT  ·  Refresh
28°C
Feels like 28°
Clear
▲ 41°  /  ▼ 25°
Wind
8 mph S
Humidity
51%
Dew Point
17°
Pressure
28.20 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
0%
Sunrise
6:56 AM
Sunset
8:31 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Harmon County is currently clear at 28°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 1165 J/kg) — isolated convective development possible. Sunrise: 6:56AM · Sunset: 8:31PM.

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, Payne, OK, Beckham, OK, Washita, OK, Caddo, OK, Canadian, OK, Oklahoma, OK, Lincoln, OK, Grady, OK, McClain, OK, Cleveland, OK, Pottawatomie, OK, Seminole, OK, Hughes, OK, Harmon, OK, Greer, OK, Kiowa, OK, Jackson, OK, Tillman, OK, Comanche, OK, Stephens, OK, Garvin, OK, Murray, OK, Pontotoc, OK, Coal, OK, Cotton, OK, Jefferson, OK, Carter, OK, Johnston, OK, Atoka, OK, Love, OK, Marshall, OK, Bryan, OK, Hardeman, TX, Foard, TX, Wilbarger, TX, Wichita, TX, Knox, TX, Baylor, TX, Archer, TX, Clay, TX
Expires 8:00 PM
36 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
28°
3%
5 AM
27°
3%
6 AM
24°
3%
7 AM
24°
3%
8 AM
26°
3%
9 AM
28°
3%
10 AM
31°
3%
11 AM
33°
3%
12 PM
34°
3%
1 PM
36°
3%
2 PM
38°
3%
3 PM
38°
3%
4 PM
39°
3%
5 PM
38°
3%
6 PM
41°
3%
7 PM
39°
3%
8 PM
38°
3%
9 PM
37°
3%
10 PM
34°
3%
11 PM
32°
3%
12 AM
32°
3%
1 AM
32°
3%
2 AM
30°
3%
3 AM
29°
3%
7-Day Forecast
Today
41° 25°
Clear.
Wed
41° 25°
Clear.
Thu
42° 23°
Clear with a 35% chance of rain.
Fri
40° 22°
Partly Cloudy with a 25% chance of rain.
Sat
41° 23°
Clear.
Sun
41° 23°
Clear.
Mon
42° 24°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 28° Clear 3% 8 mph S 51%
5 AM 27° Clear 3% 8 mph SSW 50%
6 AM 24° Clear 3% 8 mph S 53%
7 AM 24° Clear 3% 8 mph SSW 54%
8 AM 26° Clear 3% 10 mph SSW 50%
9 AM 28° Clear 3% 12 mph SW 45%
10 AM 31° Clear 3% 14 mph SW 41%
11 AM 33° Clear 3% 14 mph SW 38%
12 PM 34° Clear 3% 14 mph SSW 34%
1 PM 36° Clear 3% 14 mph SSW 29%
2 PM 38° Clear 3% 16 mph SSW 27%
3 PM 38° Clear 3% 16 mph SSW 25%
4 PM 39° Clear 3% 17 mph S 24%
5 PM 38° Clear 3% 17 mph S 24%
6 PM 41° Clear 3% 16 mph S 24%
7 PM 39° Clear 3% 16 mph S 25%
8 PM 38° Clear 3% 14 mph S 28%
9 PM 37° Clear 3% 13 mph S 32%
10 PM 34° Clear 3% 13 mph S 35%
11 PM 32° Clear 3% 13 mph S 36%
12 AM 32° Clear 3% 13 mph S 37%
1 AM 32° Clear 3% 13 mph S 38%
2 AM 30° Mostly Clear 3% 13 mph SSW 40%
3 AM 29° Mostly Clear 3% 13 mph SSW 42%
15-Day Forecast
Today
8/11
Clear
3%
25°
41°
Wed
8/12
Clear
6%
25°
41°
Thu
8/13
Clear
35%
23°
42°
Fri
8/14
Partly Cloudy
25%
22°
40°
Sat
8/15
Clear
8%
23°
41°
Sun
8/16
Clear
8%
23°
41°
Mon
8/17
Clear
8%
24°
42°
Tue
8/18
Clear
18%
24°
42°
Wed
8/19
Clear
19%
24°
42°
Thu
8/20
Clear
21%
24°
42°
Fri
8/21
Clear
60%
26°
41°
Sat
8/22
Drizzle
60%
26°
40°
Sun
8/23
Drizzle
60%
26°
39°
Mon
8/24
Drizzle
60%
26°
39°
Tue
8/25
Drizzle
60%
26°
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
29 AQI 5.2 µg/m³
O3
Ground-level ozone
Dominant
36 AQI 39 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 36 Good 36 29
Wed 37 Good 37 36
Thu 50 Good 38 50
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, 08:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE82 J/kg
MLCAPE109 J/kg
MUCAPE224 J/kg
SBCIN-627 J/kg
MLCIN0 J/kg
Lifted Index1.2
Kinematics
0–6 km Shear17 kt
0–1 km Shear24 kt
Eff. Shear40 kt
0–1 km SRH-30
0–3 km SRH128
Eff. SRH179
Storm Motion161° @ 22 kt
0–1 km EHI-0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.8
K-Index34.6
Thermo & Levels
PWAT1.29 in
0–3 km LR6.3 °C/km
700–500 LR5.5 °C/km
Total Totals45.1
LCL818 hPa
LFC472 hPa
EL290 hPa
Freezing Lvl15,827 ft