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

Harper County, Oklahoma, United States

Last updated: 5:18 PM CDT  ·  Refresh
38°C
Feels like 39°
Mostly Clear
▲ 39°  /  ▼ 24°
Wind
8 mph S
Humidity
28%
Dew Point
16°
Pressure
27.74 inHg
Visibility
10 mi
UV Index
7.2
Cloud Cover
18%
Sunrise
6:42 AM
Sunset
8:47 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Harper County is currently mostly clear at 38°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 1029 J/kg) — isolated convective development possible. Sunrise: 6:42AM · Sunset: 8:47PM.

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
47 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
38°
15%
6 PM
39°
32%
7 PM
38°
31%
8 PM
37°
34%
9 PM
36°
33%
10 PM
33°
25%
11 PM
32°
12%
12 AM
31°
12%
1 AM
29°
8%
2 AM
29°
12%
3 AM
29°
17%
4 AM
28°
21%
5 AM
28°
16%
6 AM
24°
33%
7 AM
24°
13%
8 AM
26°
13%
9 AM
28°
14%
10 AM
28°
14%
11 AM
29°
10%
12 PM
32°
10%
1 PM
32°
10%
2 PM
36°
11%
3 PM
36°
15%
4 PM
36°
15%
7-Day Forecast
Today
39° 24°
Mostly Clear with a 34% chance of rain.
Thu
40° 24°
Partly Cloudy with a 42% chance of rain.
Fri
38° 23°
Clear with a 25% chance of rain.
Sat
33° 19°
Clear.
Sun
35° 18°
Clear.
Mon
37° 19°
Clear.
Tue
38° 22°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 38° Mostly Clear 15% 8 mph S 28%
6 PM 39° Partly Cloudy 32% 5 mph S 32%
7 PM 38° Partly Cloudy 31% 5 mph S 34%
8 PM 37° Mostly Clear 34% 6 mph SE 38%
9 PM 36° Mostly Clear 33% 7 mph SE 41%
10 PM 33° Mostly Clear 25% 7 mph SE 43%
11 PM 32° Partly Cloudy 12% 8 mph SE 43%
12 AM 31° Partly Cloudy 12% 8 mph SSE 46%
1 AM 29° Partly Cloudy 8% 10 mph S 48%
2 AM 29° Mostly Clear 12% 9 mph S 48%
3 AM 29° Mostly Clear 17% 9 mph S 49%
4 AM 28° Partly Cloudy 21% 9 mph S 52%
5 AM 28° Partly Cloudy 16% 8 mph S 55%
6 AM 24° Partly Cloudy 33% 7 mph SSE 58%
7 AM 24° Partly Cloudy 13% 9 mph S 58%
8 AM 26° Partly Cloudy 13% 8 mph S 54%
9 AM 28° Partly Cloudy 14% 10 mph S 49%
10 AM 28° Partly Cloudy 14% 10 mph S 45%
11 AM 29° Partly Cloudy 10% 10 mph S 41%
12 PM 32° Partly Cloudy 10% 11 mph S 37%
1 PM 32° Partly Cloudy 10% 12 mph S 34%
2 PM 36° Partly Cloudy 11% 13 mph S 34%
3 PM 36° Partly Cloudy 15% 13 mph S 32%
4 PM 36° Partly Cloudy 15% 13 mph S 33%
15-Day Forecast
Today
7/29
Mostly Clear
34%
24°
39°
Thu
7/30
Partly Cloudy
42%
24°
40°
Fri
7/31
Clear
25%
23°
38°
Sat
8/1
Clear
7%
19°
33°
Sun
8/2
Clear
3%
18°
35°
Mon
8/3
Clear
3%
19°
37°
Tue
8/4
Clear
8%
22°
38°
Wed
8/5
Partly Cloudy
60%
24°
37°
Thu
8/6
Clear
25%
24°
38°
Fri
8/7
Clear
19%
24°
39°
Sat
8/8
Clear
60%
23°
39°
Sun
8/9
Drizzle
60%
26°
39°
Mon
8/10
Drizzle
60%
26°
39°
Tue
8/11
Clear
60%
27°
39°
Wed
8/12
Drizzle
60%
26°
39°
47
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
37 AQI 6.7 µg/m³
O3
Ground-level ozone
Dominant
47 AQI 52 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Thu 47 Good 47 37
Fri 54 Moderate 54 45
Sat 54 Moderate 54 44
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, 21:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE676 J/kg
MLCAPE563 J/kg
MUCAPE627 J/kg
SBCIN0 J/kg
MLCIN0 J/kg
Lifted Index-2.5
Kinematics
0–6 km Shear32 kt
0–1 km Shear2 kt
Eff. Shear32 kt
0–1 km SRH15
0–3 km SRH29
Eff. SRH29
Storm Motion260° @ 24 kt
0–1 km EHI0.1
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.3
K-Index40.1
Thermo & Levels
PWAT1.89 in
0–3 km LR9.0 °C/km
700–500 LR6.4 °C/km
Total Totals49.9
LCL684 hPa
LFC939 hPa
EL199 hPa
Freezing Lvl14,938 ft