Heat Advisory — Sullivan, IN, Greene, IN, Knox, IN, Daviess, IN, Martin, IN, Lawrence, IN 8:00 PM

Knox County, Indiana, United States

Last updated: 5:12 AM CDT  ·  Refresh
25°C
Feels like 27°
Mostly Clear
▲ 34°  /  ▼ 24°
Wind
8 mph SSW
Humidity
83%
Dew Point
23°
Pressure
29.49 inHg
Visibility
9 mi
UV Index
0.0
Cloud Cover
22%
Sunrise
7:00 AM
Sunset
8:48 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Knox County is currently mostly clear at 25°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 4101 J/kg) — isolated convective development possible. Sunrise: 7:00AM · Sunset: 8:48PM.

Alerts

Heat Advisory
Sullivan, IN, Greene, IN, Knox, IN, Daviess, IN, Martin, IN, Lawrence, IN
Expires 8:00 PM
48 AQI · Good Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
25°
8%
7 AM
24°
25%
8 AM
24°
25%
9 AM
26°
25%
10 AM
27°
27%
11 AM
28°
27%
12 PM
29°
27%
1 PM
31°
30%
2 PM
33°
31%
3 PM
33°
32%
4 PM
33°
32%
5 PM
33°
33%
6 PM
34°
40%
7 PM
32°
40%
8 PM
32°
42%
9 PM
31°
42%
10 PM
29°
43%
11 PM
28°
34%
12 AM
28°
35%
1 AM
27°
25%
2 AM
27°
10%
3 AM
27°
13%
4 AM
27°
14%
5 AM
26°
21%
7-Day Forecast
Today
34° 24°
Partly Cloudy with a 42% chance of rain.
Wed
33° 24°
Partly Cloudy with a 66% chance of rain.
Thu
32° 23°
Mostly Cloudy with a 61% chance of rain.
Fri
33° 22°
Mostly Clear with a 59% chance of rain.
Sat
33° 21°
Mostly Clear.
Sun
36° 22°
Drizzle, 55% chance.
Mon
32° 20°
Mostly Cloudy with a 73% chance of rain.
TimeTempConditionsPrecipWindHumidity
Now 25° Mostly Clear 8% 8 mph SSW 83%
7 AM 24° Mostly Clear 25% 9 mph SW 81%
8 AM 24° Mostly Clear 25% 10 mph SW 82%
9 AM 26° Mostly Clear 25% 11 mph SW 79%
10 AM 27° Partly Cloudy 27% 11 mph SW 76%
11 AM 28° Partly Cloudy 27% 12 mph SW 73%
12 PM 29° Partly Cloudy 27% 13 mph SW 68%
1 PM 31° Partly Cloudy 30% 13 mph SW 64%
2 PM 33° Partly Cloudy 31% 13 mph SW 61%
3 PM 33° Partly Cloudy 32% 12 mph SW 60%
4 PM 33° Partly Cloudy 32% 12 mph SW 58%
5 PM 33° Partly Cloudy 33% 11 mph SW 58%
6 PM 34° Partly Cloudy 40% 10 mph SW 62%
7 PM 32° Partly Cloudy 40% 7 mph SW 69%
8 PM 32° Partly Cloudy 42% 5 mph SSW 75%
9 PM 31° Partly Cloudy 42% 6 mph S 77%
10 PM 29° Partly Cloudy 43% 7 mph S 78%
11 PM 28° Partly Cloudy 34% 8 mph S 79%
12 AM 28° Partly Cloudy 35% 8 mph SSW 78%
1 AM 27° Partly Cloudy 25% 8 mph SSW 78%
2 AM 27° Partly Cloudy 10% 8 mph SSW 78%
3 AM 27° Partly Cloudy 13% 8 mph SSW 79%
4 AM 27° Partly Cloudy 14% 8 mph SSW 81%
5 AM 26° Mostly Clear 21% 9 mph SSW 82%
15-Day Forecast
Today
8/11
Partly Cloudy
42%
24°
34°
Wed
8/12
Partly Cloudy
66%
24°
33°
Thu
8/13
Mostly Cloudy
61%
23°
32°
Fri
8/14
Mostly Clear
59%
22°
33°
Sat
8/15
Mostly Clear
15%
21°
33°
Sun
8/16
Drizzle
55%
22°
36°
Mon
8/17
Mostly Cloudy
73%
20°
32°
Tue
8/18
Rain
53%
19°
32°
Wed
8/19
Mostly Clear
35%
21°
34°
Thu
8/20
Clear
35%
22°
33°
Fri
8/21
Drizzle
60%
19°
33°
Sat
8/22
Drizzle
60%
19°
33°
Sun
8/23
Drizzle
60%
19°
32°
Mon
8/24
Drizzle
60%
19°
31°
Tue
8/25
Drizzle
60%
18°
31°
48
Good
U.S. Air Quality Index · Dominant: PM2.5
50 100 150 200

Air quality is satisfactory and poses little or no health risk.

Pollutant Breakdown · Today
PM2.5
Fine particulate matter
Dominant
48 AQI 8.7 µg/m³
O3
Ground-level ozone
38 AQI 42 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 48 Good 38 48
Wed 40 Good 40 27
Thu 40 Good 40 25
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 Aug 11, 08:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE1974 J/kg
MLCAPE1737 J/kg
MUCAPE1974 J/kg
SBCIN-330 J/kg
MLCIN0 J/kg
Lifted Index-6.0
Kinematics
0–6 km Shear19 kt
0–1 km Shear19 kt
Eff. Shear21 kt
0–1 km SRH142
0–3 km SRH153
Eff. SRH79
Storm Motion324° @ 16 kt
0–1 km EHI1.8
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell1.6
K-Index31.8
Thermo & Levels
PWAT1.75 in
0–3 km LR4.4 °C/km
700–500 LR7.5 °C/km
Total Totals53.7
LCL963 hPa
LFC687 hPa
EL173 hPa
Freezing Lvl14,341 ft