Frost Advisory — Miami, KS, Linn, KS, Leavenworth, KS, Wyandotte, KS, Johnson, KS, Schuyler, MO, Adair, MO, Clinton, MO, Caldwell, MO, Livingston, MO, Linn, MO, Macon, MO, Platte, MO, Clay, MO, Ray, MO, Carroll, MO, Chariton, MO, Randolph, MO, Jackson, MO, Lafayette, MO, Saline, MO, Cass, MO, Johnson, MO 9:00 AM

Johnson County, Kansas, United States

Last updated: 8:23 PM CDT  ·  Refresh
8°C
Feels like 6°
Mostly Clear
▲ 11°  /  ▼ 3°
Wind
7 mph N
Humidity
68%
Dew Point
3°
Pressure
29.42 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
19%
Sunrise
7:28 AM
Sunset
6:39 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Johnson County is currently mostly clear at 8°C. Dry conditions are expected through the next 24 hours. Sunrise: 7:28AM · Sunset: 6:39PM.

Alerts

Frost Advisory
Miami, KS, Linn, KS, Leavenworth, KS, Wyandotte, KS, Johnson, KS, Schuyler, MO, Adair, MO, Clinton, MO, Caldwell, MO, Livingston, MO, Linn, MO, Macon, MO, Platte, MO, Clay, MO, Ray, MO, Carroll, MO, Chariton, MO, Randolph, MO, Jackson, MO, Lafayette, MO, Saline, MO, Cass, MO, Johnson, MO
Expires 9:00 AM
20 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
8°
8%
9 PM
8°
3%
10 PM
7°
3%
11 PM
7°
3%
12 AM
6°
3%
1 AM
6°
3%
2 AM
6°
3%
3 AM
5°
3%
4 AM
4°
3%
5 AM
3°
3%
6 AM
3°
14%
7 AM
3°
14%
8 AM
4°
14%
9 AM
7°
3%
10 AM
8°
3%
11 AM
10°
3%
12 PM
12°
3%
1 PM
14°
3%
2 PM
14°
3%
3 PM
14°
3%
4 PM
14°
3%
5 PM
12°
3%
6 PM
11°
3%
7 PM
11°
3%
7-Day Forecast
Tonight
11° 3°
Mostly Clear.
Sat
16° 3°
Fog.
Sun
20° 4°
Clear.
Mon
22° 6°
Mostly Clear.
Tue
24° 10°
Mostly Clear.
Wed
26° 12°
Mostly Clear.
Thu
28° 13°
Partly Cloudy.
TimeTempConditionsPrecipWindHumidity
Now 8° Mostly Clear 8% 7 mph N 68%
9 PM 8° Clear 3% 6 mph N 69%
10 PM 7° Clear 3% 6 mph N 71%
11 PM 7° Clear 3% 6 mph N 74%
12 AM 6° Clear 3% 6 mph NNW 76%
1 AM 6° Clear 3% 5 mph N 78%
2 AM 6° Clear 3% 5 mph N 78%
3 AM 5° Clear 3% 4 mph NNW 79%
4 AM 4° Clear 3% 4 mph NNW 79%
5 AM 3° Mostly Clear 3% 3 mph NNW 80%
6 AM 3° Mostly Clear 14% 3 mph NNW 81%
7 AM 3° Mostly Clear 14% 2 mph NNW 80%
8 AM 4° Fog 14% 1 mph WNW 77%
9 AM 7° Fog 3% 2 mph SSW 74%
10 AM 8° Mostly Clear 3% 3 mph S 67%
11 AM 10° Mostly Clear 3% 4 mph SSW 59%
12 PM 12° Clear 3% 4 mph SSW 52%
1 PM 14° Clear 3% 4 mph SSW 47%
2 PM 14° Clear 3% 5 mph SSW 46%
3 PM 14° Clear 3% 5 mph SSW 46%
4 PM 14° Clear 3% 5 mph SSW 47%
5 PM 12° Clear 3% 5 mph S 51%
6 PM 11° Clear 3% 5 mph S 55%
7 PM 11° Clear 3% 5 mph S 58%
15-Day Forecast
Today
10/16
Mostly Clear
8%
3°
11°
Sat
10/17
Fog
14%
3°
16°
Sun
10/18
Clear
3%
4°
20°
Mon
10/19
Mostly Clear
7%
6°
22°
Tue
10/20
Mostly Clear
13%
10°
24°
Wed
10/21
Mostly Clear
17%
12°
26°
Thu
10/22
Partly Cloudy
7%
13°
28°
Fri
10/23
Partly Cloudy
16%
14°
27°
Sat
10/24
Drizzle
47%
14°
26°
Sun
10/25
Drizzle
72%
11°
20°
Mon
10/26
Drizzle
60%
9°
22°
Tue
10/27
Drizzle
60%
9°
21°
Wed
10/28
Drizzle
60%
9°
20°
Thu
10/29
Drizzle
60%
9°
21°
Fri
10/30
Drizzle
60%
10°
21°
20
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
8 AQI 1.5 µg/m³
O3
Ground-level ozone
Dominant
20 AQI 22 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 20 Good 20 8
Sun 26 Good 24 26
Mon 32 Good 26 32
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 LCL0°C Temperature (°C) Pressure (hPa)
Temp Dewpoint Parcel (SB) CAPE CIN Dry adiabat Moist adiabat Mixing ratio
RAP
Valid Fri Oct 16, 23:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 50 60 70 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE0 J/kg
MLCAPE6 J/kg
MUCAPE0 J/kg
SBCIN—
MLCIN0 J/kg
Lifted Index19.6
Kinematics
0–6 km Shear40 kt
0–1 km Shear19 kt
Eff. Shear—
0–1 km SRH53
0–3 km SRH54
Eff. SRH—
Storm Motion23° @ 42 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)—
Supercell—
K-Index-25.2
Thermo & Levels
PWAT0.35 in
0–3 km LR3.1 °C/km
700–500 LR4.8 °C/km
Total Totals20.8
LCL923 hPa
LFC—
EL—
Freezing Lvl3,740 ft