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, 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, Love, OK, Hardeman, TX, Foard, TX, Wilbarger, TX, Wichita, TX, Knox, TX, Baylor, TX, Archer, TX, Clay, TX 7:00 PM

Jefferson County, Oklahoma, United States

Last updated: 3:51 PM CDT  ·  Refresh
38°C
Feels like 39°
Clear
▲ 39°  /  ▼ 23°
Wind
12 mph SSE
Humidity
29%
Dew Point
18°
Pressure
28.95 inHg
Visibility
10 mi
UV Index
7.8
Cloud Cover
4%
Sunrise
7:12 AM
Sunset
7:40 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Jefferson County is currently clear at 38°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 1695 J/kg) — isolated convective development possible. Sunrise: 7:12AM · Sunset: 7:40PM.

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, 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, Love, OK, Hardeman, TX, Foard, TX, Wilbarger, TX, Wichita, TX, Knox, TX, Baylor, TX, Archer, TX, Clay, TX
Expires 7:00 PM
42 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
38°
4%
4 PM
38°
5%
5 PM
39°
5%
6 PM
38°
5%
7 PM
36°
5%
8 PM
34°
5%
9 PM
32°
5%
10 PM
32°
5%
11 PM
31°
3%
12 AM
31°
3%
1 AM
29°
3%
2 AM
28°
3%
3 AM
27°
3%
4 AM
27°
3%
5 AM
23°
3%
6 AM
23°
3%
7 AM
24°
3%
8 AM
26°
3%
9 AM
28°
3%
10 AM
30°
3%
11 AM
31°
3%
12 PM
32°
3%
1 PM
34°
3%
2 PM
34°
3%
7-Day Forecast
Today
39° 23°
Clear.
Mon
39° 23°
Mostly Clear.
Tue
41° 22°
Clear.
Wed
38° 22°
Partly Cloudy.
Thu
37° 23°
Clear.
Fri
38° 23°
Drizzle, 50% chance.
Sat
37° 22°
Clear with a 35% chance of rain.
TimeTempConditionsPrecipWindHumidity
Now 38° Clear 4% 12 mph SSE 29%
4 PM 38° Clear 5% 13 mph SSE 29%
5 PM 39° Clear 5% 13 mph SSE 31%
6 PM 38° Clear 5% 13 mph SSE 33%
7 PM 36° Clear 5% 12 mph SE 37%
8 PM 34° Clear 5% 11 mph SSE 41%
9 PM 32° Clear 5% 10 mph SSE 46%
10 PM 32° Clear 5% 10 mph SSE 48%
11 PM 31° Clear 3% 10 mph SSE 50%
12 AM 31° Clear 3% 10 mph SSE 51%
1 AM 29° Clear 3% 10 mph S 54%
2 AM 28° Clear 3% 9 mph S 58%
3 AM 27° Clear 3% 9 mph S 62%
4 AM 27° Clear 3% 9 mph S 67%
5 AM 23° Clear 3% 9 mph S 72%
6 AM 23° Clear 3% 8 mph S 77%
7 AM 24° Clear 3% 9 mph S 72%
8 AM 26° Clear 3% 11 mph SSW 65%
9 AM 28° Clear 3% 12 mph SSW 58%
10 AM 30° Clear 3% 12 mph SSW 53%
11 AM 31° Mostly Clear 3% 13 mph SSW 48%
12 PM 32° Mostly Clear 3% 13 mph S 43%
1 PM 34° Mostly Clear 3% 13 mph S 42%
2 PM 34° Mostly Clear 3% 14 mph S 41%
15-Day Forecast
Today
9/13
Clear
5%
23°
39°
Mon
9/14
Mostly Clear
3%
23°
39°
Tue
9/15
Clear
8%
22°
41°
Wed
9/16
Partly Cloudy
8%
22°
38°
Thu
9/17
Clear
3%
23°
37°
Fri
9/18
Drizzle
50%
23°
38°
Sat
9/19
Clear
35%
22°
37°
Sun
9/20
Drizzle
60%
21°
34°
Mon
9/21
Drizzle
60%
15°
32°
Tue
9/22
Drizzle
60%
14°
32°
Wed
9/23
Drizzle
60%
17°
31°
Thu
9/24
Drizzle
60%
20°
32°
Fri
9/25
Drizzle
60%
20°
32°
Sat
9/26
Drizzle
60%
19°
32°
Sun
9/27
Drizzle
60%
21°
32°
42
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 6.6 µg/m³
O3
Ground-level ozone
Dominant
42 AQI 46 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Mon 42 Good 42 37
Tue 34 Good 34 32
Wed 32 Good 32 29
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 Sun Sep 13, 19:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE1680 J/kg
MLCAPE875 J/kg
MUCAPE1680 J/kg
SBCIN-44 J/kg
MLCIN-120 J/kg
Lifted Index-5.0
Kinematics
0–6 km Shear16 kt
0–1 km Shear3 kt
Eff. Shear18 kt
0–1 km SRH-8
0–3 km SRH48
Eff. SRH48
Storm Motion79° @ 12 kt
0–1 km EHI-0.1
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index28.6
Thermo & Levels
PWAT1.50 in
0–3 km LR8.6 °C/km
700–500 LR6.9 °C/km
Total Totals49.4
LCL738 hPa
LFC678 hPa
EL158 hPa
Freezing Lvl15,584 ft