Severe Thunderstorm Warning — Knox County, IN, Sullivan County, IN 8:45 PM Severe Thunderstorm Watch 10:00 PM Severe Thunderstorm Watch 10:00 PM Areal Flood Advisory — Knox County, IN, Sullivan County, IN 12:00 AM

Sullivan County, Indiana, United States

Last updated: 8:38 PM CDT  ·  Refresh
28°C
Feels like 32°
Heavy Rain
▲ 33°  /  ▼ 22°
Wind
8 mph S
Humidity
88%
Dew Point
25°
Pressure
29.26 inHg
Visibility
8 mi
UV Index
0.0
Cloud Cover
70%
Sunrise
6:46 AM
Sunset
9:05 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Sullivan County is currently heavy rain at 28°C. Precipitation is likely — peak probability 50% around 10 PM. Atmospheric instability is elevated (CAPE up to 3103 J/kg) — isolated convective development possible. Sunrise: 6:46AM · Sunset: 9:05PM.

Alerts

Severe Thunderstorm Warning
Knox County, IN, Sullivan County, IN
Expires 8:45 PM
Severe Thunderstorm Watch
Expires 10:00 PM
Severe Thunderstorm Watch
Expires 10:00 PM
Areal Flood Advisory
Knox County, IN, Sullivan County, IN
Expires 12:00 AM
49 AQI · Good Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
28°
34%
10 PM
26°
50%
11 PM
26°
23%
12 AM
26°
23%
1 AM
26°
16%
2 AM
26°
4%
3 AM
26°
4%
4 AM
26°
4%
5 AM
26°
3%
6 AM
24°
3%
7 AM
24°
3%
8 AM
25°
3%
9 AM
26°
3%
10 AM
26°
3%
11 AM
27°
3%
12 PM
28°
3%
1 PM
28°
3%
2 PM
29°
3%
3 PM
29°
3%
4 PM
32°
3%
5 PM
32°
3%
6 PM
30°
3%
7 PM
29°
3%
8 PM
28°
3%
7-Day Forecast
Tonight
33° 22°
Heavy Rain, 34% chance.
Tue
32° 18°
Partly Cloudy with a 23% chance of rain.
Wed
28° 15°
Clear.
Thu
28° 16°
Clear.
Fri
26° 19°
Rain, 82% chance.
Sat
24° 18°
Rain, 90% chance.
Sun
27° 17°
Drizzle, 52% chance.
TimeTempConditionsPrecipWindHumidity
Now 28° Heavy Rain 34% 8 mph S 88%
10 PM 26° Mostly Cloudy 50% 11 mph S 90%
11 PM 26° Partly Cloudy 23% 9 mph SSW 90%
12 AM 26° Mostly Clear 23% 7 mph SSW 89%
1 AM 26° Partly Cloudy 16% 7 mph SW 88%
2 AM 26° Partly Cloudy 4% 7 mph SW 88%
3 AM 26° Partly Cloudy 4% 8 mph WSW 88%
4 AM 26° Partly Cloudy 4% 9 mph WSW 87%
5 AM 26° Partly Cloudy 3% 9 mph W 88%
6 AM 24° Partly Cloudy 3% 8 mph W 89%
7 AM 24° Partly Cloudy 3% 8 mph WNW 90%
8 AM 25° Partly Cloudy 3% 9 mph NW 88%
9 AM 26° Partly Cloudy 3% 10 mph NNW 85%
10 AM 26° Mostly Cloudy 3% 11 mph NNW 82%
11 AM 27° Mostly Cloudy 3% 12 mph N 79%
12 PM 28° Partly Cloudy 3% 12 mph N 76%
1 PM 28° Partly Cloudy 3% 12 mph N 72%
2 PM 29° Partly Cloudy 3% 12 mph N 70%
3 PM 29° Partly Cloudy 3% 12 mph N 69%
4 PM 32° Partly Cloudy 3% 12 mph N 69%
5 PM 32° Partly Cloudy 3% 12 mph N 70%
6 PM 30° Partly Cloudy 3% 11 mph N 72%
7 PM 29° Partly Cloudy 3% 10 mph N 75%
8 PM 28° Partly Cloudy 3% 10 mph N 77%
15-Day Forecast
Today
7/27
Heavy Rain
34%
22°
33°
Tue
7/28
Partly Cloudy
23%
18°
32°
Wed
7/29
Clear
3%
15°
28°
Thu
7/30
Clear
7%
16°
28°
Fri
7/31
Rain
82%
19°
26°
Sat
8/1
Rain
90%
18°
24°
Sun
8/2
Drizzle
52%
17°
27°
Mon
8/3
Clear
17%
18°
28°
Tue
8/4
Rain
68%
19°
29°
Wed
8/5
Rain
68%
21°
30°
Thu
8/6
Drizzle
60%
20°
32°
Fri
8/7
Drizzle
60%
19°
32°
Sat
8/8
Drizzle
60%
19°
28°
Sun
8/9
Drizzle
60%
19°
29°
Mon
8/10
Drizzle
60%
20°
29°
49
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
49 AQI 8.8 µg/m³
O3
Ground-level ozone
34 AQI 37 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 49 Good 34 49
Wed 48 Good 38 48
Thu 34 Good 34 28
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 Jul 27, 23:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 50 60 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE3015 J/kg
MLCAPE3567 J/kg
MUCAPE4361 J/kg
SBCIN-141 J/kg
MLCIN0 J/kg
Lifted Index-7.8
Kinematics
0–6 km Shear50 kt
0–1 km Shear17 kt
Eff. Shear52 kt
0–1 km SRH125
0–3 km SRH89
Eff. SRH89
Storm Motion275° @ 35 kt
0–1 km EHI2.4
Composite Parameters
Sig. Tornado3.7
STP (eff)1.1
Supercell10.5
K-Index30.6
Thermo & Levels
PWAT2.05 in
0–3 km LR5.0 °C/km
700–500 LR6.8 °C/km
Total Totals51.7
LCL958 hPa
LFC735 hPa
EL148 hPa
Freezing Lvl15,085 ft