Extreme Heat Warning — Republic, KS, Washington, KS, Marshall, KS, Nemaha, KS, Brown, KS, Cloud, KS, Clay, KS, Riley, KS, Pottawatomie, KS, Jackson, KS, Jefferson, KS, Ottawa, KS, Dickinson, KS, Geary, KS, Morris, KS, Wabaunsee, KS, Shawnee, KS, Douglas, KS, Lyon, KS, Osage, KS, Franklin, KS, Coffey, KS, Anderson, KS 7:00 PM

Lyon County, Kansas, United States

Last updated: 8:28 AM CDT  ·  Refresh
24°C
Feels like 25°
Mostly Clear
▲ 39°  /  ▼ 22°
Wind
8 mph SE
Humidity
75%
Dew Point
20°
Pressure
28.75 inHg
Visibility
10 mi
UV Index
4.0
Cloud Cover
15%
Sunrise
6:59 AM
Sunset
7:45 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Lyon County is currently mostly clear at 24°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 1246 J/kg) — isolated convective development possible. Sunrise: 6:59AM · Sunset: 7:45PM.

Alerts

Extreme Heat Warning
Republic, KS, Washington, KS, Marshall, KS, Nemaha, KS, Brown, KS, Cloud, KS, Clay, KS, Riley, KS, Pottawatomie, KS, Jackson, KS, Jefferson, KS, Ottawa, KS, Dickinson, KS, Geary, KS, Morris, KS, Wabaunsee, KS, Shawnee, KS, Douglas, KS, Lyon, KS, Osage, KS, Franklin, KS, Coffey, KS, Anderson, KS
Expires 7:00 PM
44 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
24°
30%
9 AM
26°
25%
10 AM
28°
21%
11 AM
31°
21%
12 PM
33°
14%
1 PM
36°
14%
2 PM
37°
15%
3 PM
38°
15%
4 PM
38°
15%
5 PM
39°
7%
6 PM
38°
8%
7 PM
36°
8%
8 PM
34°
8%
9 PM
31°
8%
10 PM
30°
8%
11 PM
29°
3%
12 AM
28°
3%
1 AM
27°
3%
2 AM
27°
3%
3 AM
26°
3%
4 AM
25°
3%
5 AM
23°
3%
6 AM
23°
3%
7 AM
24°
3%
7-Day Forecast
Today
39° 22°
Mostly Clear with a 30% chance of rain.
Tue
42° 23°
Mostly Clear.
Wed
38° 22°
Mostly Clear with a 75% chance of rain.
Thu
31° 17°
Mostly Cloudy with a 78% chance of rain.
Fri
36° 17°
Drizzle, 71% chance.
Sat
35° 16°
Rain, 82% chance.
Sun
39° 22°
Drizzle, 72% chance.
TimeTempConditionsPrecipWindHumidity
Now 24° Mostly Clear 30% 8 mph SE 75%
9 AM 26° Mostly Clear 25% 10 mph SSE 66%
10 AM 28° Mostly Clear 21% 11 mph SSE 58%
11 AM 31° Clear 21% 12 mph SSE 50%
12 PM 33° Clear 14% 12 mph SSE 42%
1 PM 36° Clear 14% 12 mph SSE 37%
2 PM 37° Clear 15% 12 mph SSE 34%
3 PM 38° Clear 15% 12 mph SSE 31%
4 PM 38° Mostly Clear 15% 12 mph SSE 30%
5 PM 39° Mostly Clear 7% 12 mph SSE 31%
6 PM 38° Partly Cloudy 8% 12 mph SSE 32%
7 PM 36° Partly Cloudy 8% 11 mph SSE 36%
8 PM 34° Mostly Clear 8% 10 mph SE 41%
9 PM 31° Clear 8% 11 mph SE 46%
10 PM 30° Clear 8% 11 mph SE 50%
11 PM 29° Mostly Clear 3% 11 mph SSE 53%
12 AM 28° Mostly Clear 3% 11 mph SSE 57%
1 AM 27° Mostly Clear 3% 10 mph SSE 59%
2 AM 27° Mostly Clear 3% 10 mph SSE 61%
3 AM 26° Mostly Clear 3% 10 mph SSE 63%
4 AM 25° Mostly Clear 3% 10 mph SSE 64%
5 AM 23° Mostly Clear 3% 10 mph SSE 64%
6 AM 23° Mostly Clear 3% 11 mph S 65%
7 AM 24° Mostly Clear 3% 11 mph S 62%
15-Day Forecast
Today
9/7
Mostly Clear
30%
22°
39°
Tue
9/8
Mostly Clear
6%
23°
42°
Wed
9/9
Mostly Clear
75%
22°
38°
Thu
9/10
Mostly Cloudy
78%
17°
31°
Fri
9/11
Drizzle
71%
17°
36°
Sat
9/12
Rain
82%
16°
35°
Sun
9/13
Drizzle
72%
22°
39°
Mon
9/14
Rain
68%
18°
32°
Tue
9/15
Drizzle
68%
10°
29°
Wed
9/16
Drizzle
51%
5°
28°
Thu
9/17
Drizzle
60%
10°
28°
Fri
9/18
Drizzle
60%
16°
27°
Sat
9/19
Drizzle
60%
16°
28°
Sun
9/20
Drizzle
60%
15°
27°
Mon
9/21
Clear
60%
16°
29°
44
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
44 AQI 7.9 µg/m³
O3
Ground-level ozone
Dominant
44 AQI 48 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Tue 44 Good 44 44
Wed 55 Moderate 48 55
Thu 42 Good 42 39
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 Mon Sep 7, 11:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE39 J/kg
MLCAPE84 J/kg
MUCAPE311 J/kg
SBCIN-495 J/kg
MLCIN-323 J/kg
Lifted Index0.4
Kinematics
0–6 km Shear21 kt
0–1 km Shear14 kt
Eff. Shear27 kt
0–1 km SRH44
0–3 km SRH105
Eff. SRH81
Storm Motion93° @ 12 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.4
K-Index33.6
Thermo & Levels
PWAT1.48 in
0–3 km LR4.9 °C/km
700–500 LR5.6 °C/km
Total Totals46.6
LCL915 hPa
LFC634 hPa
EL353 hPa
Freezing Lvl14,934 ft