Excessive Heat Watch 9:00 PM Excessive 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 9:00 PM

Lyon County, Kansas, United States

Last updated: 4:45 PM CDT  ·  Refresh
33°C
Feels like 39°
Mostly Clear
▲ 33°  /  ▼ 23°
Wind
19 mph SSW
Humidity
60%
Dew Point
23°
Pressure
28.67 inHg
Visibility
10 mi
UV Index
7.8
Cloud Cover
24%
Sunrise
6:04 AM
Sunset
8:52 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Lyon County is currently mostly clear at 33°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 3281 J/kg) — isolated convective development possible. Sunrise: 6:04AM · Sunset: 8:52PM.

Alerts

Excessive Heat Watch
Expires 9:00 PM
Excessive 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 9:00 PM
88 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
33°
3%
5 PM
33°
16%
6 PM
33°
16%
7 PM
31°
16%
8 PM
30°
16%
9 PM
28°
16%
10 PM
27°
16%
11 PM
27°
16%
12 AM
26°
8%
1 AM
26°
3%
2 AM
25°
3%
3 AM
25°
3%
4 AM
24°
3%
5 AM
23°
3%
6 AM
23°
3%
7 AM
24°
3%
8 AM
26°
3%
9 AM
27°
3%
10 AM
28°
3%
11 AM
29°
3%
12 PM
31°
3%
1 PM
32°
3%
2 PM
32°
3%
3 PM
32°
3%
7-Day Forecast
Today
33° 23°
Mostly Clear.
Wed
34° 23°
Partly Cloudy.
Thu
34° 23°
Overcast.
Fri
33° 23°
Partly Cloudy with a 44% chance of rain.
Sat
34° 23°
Mostly Clear with a 60% chance of rain.
Sun
34° 22°
Thunderstorm, 81% chance.
Mon
33° 22°
Overcast with a 81% chance of rain.
TimeTempConditionsPrecipWindHumidity
Now 33° Mostly Clear 3% 19 mph SSW 60%
5 PM 33° Mostly Clear 16% 19 mph S 60%
6 PM 33° Mostly Clear 16% 18 mph S 62%
7 PM 31° Mostly Clear 16% 16 mph S 64%
8 PM 30° Partly Cloudy 16% 15 mph S 66%
9 PM 28° Partly Cloudy 16% 15 mph S 67%
10 PM 27° Partly Cloudy 16% 15 mph S 70%
11 PM 27° Partly Cloudy 16% 14 mph S 72%
12 AM 26° Partly Cloudy 8% 13 mph S 74%
1 AM 26° Partly Cloudy 3% 13 mph S 74%
2 AM 25° Partly Cloudy 3% 13 mph S 76%
3 AM 25° Partly Cloudy 3% 13 mph S 77%
4 AM 24° Partly Cloudy 3% 12 mph S 78%
5 AM 23° Partly Cloudy 3% 13 mph S 79%
6 AM 23° Partly Cloudy 3% 13 mph S 81%
7 AM 24° Partly Cloudy 3% 15 mph S 78%
8 AM 26° Partly Cloudy 3% 16 mph SSW 73%
9 AM 27° Mostly Cloudy 3% 17 mph SSW 69%
10 AM 28° Mostly Cloudy 3% 18 mph SSW 66%
11 AM 29° Mostly Cloudy 3% 18 mph SSW 64%
12 PM 31° Partly Cloudy 3% 18 mph SSW 61%
1 PM 32° Partly Cloudy 3% 18 mph SSW 60%
2 PM 32° Partly Cloudy 3% 18 mph SSW 59%
3 PM 32° Mostly Cloudy 3% 18 mph S 58%
15-Day Forecast
Today
6/30
Mostly Clear
16%
23°
33°
Wed
7/1
Partly Cloudy
3%
23°
34°
Thu
7/2
Overcast
3%
23°
34°
Fri
7/3
Partly Cloudy
44%
23°
33°
Sat
7/4
Mostly Clear
60%
23°
34°
Sun
7/5
Thunderstorm
81%
22°
34°
Mon
7/6
Overcast
81%
22°
33°
Tue
7/7
Mostly Cloudy
60%
22°
33°
Wed
7/8
Drizzle
60%
22°
34°
Thu
7/9
Thunderstorm
60%
23°
34°
Fri
7/10
Drizzle
60%
22°
34°
Sat
7/11
Drizzle
60%
22°
33°
Sun
7/12
Drizzle
60%
21°
33°
Mon
7/13
Clear
60%
21°
33°
Tue
7/14
Drizzle
60%
21°
33°
88
Moderate
U.S. Air Quality Index · Dominant: PM2.5
50 100 150 200

Air quality is acceptable. Unusually sensitive people should consider limiting prolonged outdoor exertion.

Pollutant Breakdown · Today
PM2.5
Fine particulate matter
Dominant
88 AQI 28.7 µg/m³
O3
Ground-level ozone
27 AQI 29 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Wed 88 Moderate 27 88
Thu 44 Good 31 44
Fri 52 Moderate 31 52
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 Jun 30, 20:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE3990 J/kg
MLCAPE2840 J/kg
MUCAPE3990 J/kg
SBCIN-29 J/kg
MLCIN0 J/kg
Lifted Index-9.4
Kinematics
0–6 km Shear21 kt
0–1 km Shear7 kt
Eff. Shear17 kt
0–1 km SRH-12
0–3 km SRH-47
Eff. SRH-47
Storm Motion189° @ 34 kt
0–1 km EHI-0.3
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index29.1
Thermo & Levels
PWAT1.52 in
0–3 km LR7.4 °C/km
700–500 LR7.0 °C/km
Total Totals53.7
LCL845 hPa
LFC805 hPa
EL138 hPa
Freezing Lvl14,518 ft