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: 5:22 AM CDT  ·  Refresh
27°C
Feels like 28°
Clear
▲ 41°  /  ▼ 26°
Wind
8 mph S
Humidity
53%
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 27°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
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
36°
3%
10 PM
34°
3%
11 PM
34°
3%
12 AM
32°
3%
1 AM
31°
3%
2 AM
30°
3%
3 AM
29°
3%
4 AM
29°
3%
7-Day Forecast
Today
41° 26°
Clear.
Wed
41° 26°
Clear.
Thu
42° 24°
Mostly Clear with a 31% chance of rain.
Fri
40° 22°
Partly Cloudy with a 22% chance of rain.
Sat
41° 24°
Partly Cloudy.
Sun
41° 24°
Partly Cloudy.
Mon
41° 24°
Mostly Clear.
TimeTempConditionsPrecipWindHumidity
Now 27° Clear 3% 8 mph S 53%
6 AM 24° Clear 3% 8 mph S 52%
7 AM 24° Clear 3% 8 mph SSW 53%
8 AM 26° Clear 3% 10 mph SSW 49%
9 AM 28° Clear 3% 13 mph SW 44%
10 AM 31° Clear 3% 14 mph SW 40%
11 AM 33° Clear 3% 14 mph SSW 37%
12 PM 34° Clear 3% 14 mph SSW 33%
1 PM 36° Clear 3% 15 mph SSW 29%
2 PM 38° Clear 3% 16 mph SSW 27%
3 PM 38° Clear 3% 16 mph S 25%
4 PM 39° Clear 3% 16 mph S 24%
5 PM 38° Clear 3% 16 mph S 24%
6 PM 41° Clear 3% 16 mph S 24%
7 PM 39° Clear 3% 16 mph S 26%
8 PM 38° Clear 3% 14 mph S 29%
9 PM 36° Clear 3% 12 mph S 32%
10 PM 34° Clear 3% 12 mph S 35%
11 PM 34° Clear 3% 12 mph S 36%
12 AM 32° Clear 3% 13 mph S 38%
1 AM 31° Clear 3% 12 mph S 39%
2 AM 30° Mostly Clear 3% 12 mph SSW 40%
3 AM 29° Mostly Clear 3% 12 mph SSW 42%
4 AM 29° Mostly Clear 3% 12 mph SSW 44%
15-Day Forecast
Today
8/11
Clear
3%
26°
41°
Wed
8/12
Clear
6%
26°
41°
Thu
8/13
Mostly Clear
31%
24°
42°
Fri
8/14
Partly Cloudy
22%
22°
40°
Sat
8/15
Partly Cloudy
7%
24°
41°
Sun
8/16
Partly Cloudy
7%
24°
41°
Mon
8/17
Mostly Clear
7%
24°
41°
Tue
8/18
Mostly Clear
15%
23°
42°
Wed
8/19
Clear
15%
24°
42°
Thu
8/20
Clear
19%
25°
41°
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, 09:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE11 J/kg
MLCAPE29 J/kg
MUCAPE113 J/kg
SBCIN-605 J/kg
MLCIN0 J/kg
Lifted Index1.4
Kinematics
0–6 km Shear15 kt
0–1 km Shear24 kt
Eff. Shear—
0–1 km SRH-34
0–3 km SRH102
Eff. SRH—
Storm Motion170° @ 22 kt
0–1 km EHI-0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)—
Supercell—
K-Index30.7
Thermo & Levels
PWAT1.24 in
0–3 km LR6.1 °C/km
700–500 LR5.6 °C/km
Total Totals43.7
LCL822 hPa
LFC414 hPa
EL339 hPa
Freezing Lvl15,322 ft