Severe Thunderstorm Watch 9:00 PM Severe Thunderstorm Watch 9:00 PM

Union County, Kentucky, United States

Last updated: 8:31 PM CDT  ·  Refresh
27°C
Feels like 30°
Partly Cloudy
▲ 33°  /  ▼ 19°
Wind
6 mph NW
Humidity
79%
Dew Point
22°
Pressure
29.38 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
34%
Sunrise
5:46 AM
Sunset
8:09 PM
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WeatherAI™ Analysis

WeatherAI Analysis: Union County is currently partly cloudy at 27°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 924 J/kg) — isolated convective development possible. Sunrise: 5:46AM · Sunset: 8:09PM.

Alerts

Severe Thunderstorm Watch
Expires 9:00 PM
Severe Thunderstorm Watch
Expires 9:00 PM
52 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
27°
11%
9 PM
26°
14%
10 PM
25°
14%
11 PM
24°
14%
12 AM
23°
7%
1 AM
22°
3%
2 AM
21°
3%
3 AM
21°
3%
4 AM
20°
4%
5 AM
19°
5%
6 AM
19°
5%
7 AM
20°
5%
8 AM
22°
5%
9 AM
24°
5%
10 AM
24°
17%
11 AM
25°
17%
12 PM
26°
22%
1 PM
28°
22%
2 PM
27°
17%
3 PM
28°
17%
4 PM
27°
3%
5 PM
27°
3%
6 PM
26°
3%
7 PM
26°
3%
7-Day Forecast
Tonight
33° 19°
Clear.
Wed
29° 17°
Partly Cloudy.
Thu
27° 14°
Clear.
Fri
23° 16°
Overcast with a 57% chance of rain.
Sat
29° 18°
Mostly Cloudy with a 47% chance of rain.
Sun
34° 22°
Thunderstorm, 43% chance.
Mon
34° 23°
Clear with a 31% chance of rain.
TimeTempConditionsPrecipWindHumidity
Now 27° Partly Cloudy 11% 6 mph NW 79%
9 PM 26° Mostly Clear 14% 5 mph NNW 81%
10 PM 25° Clear 14% 6 mph NNW 83%
11 PM 24° Clear 14% 6 mph NNW 86%
12 AM 23° Clear 7% 6 mph NNW 88%
1 AM 22° Clear 3% 6 mph NNW 89%
2 AM 21° Clear 3% 6 mph NNW 90%
3 AM 21° Clear 3% 6 mph NNW 91%
4 AM 20° Clear 4% 6 mph NNW 92%
5 AM 19° Clear 5% 6 mph NNW 92%
6 AM 19° Clear 5% 7 mph NNW 92%
7 AM 20° Clear 5% 7 mph N 90%
8 AM 22° Mostly Clear 5% 7 mph N 86%
9 AM 24° Mostly Clear 5% 8 mph NNE 82%
10 AM 24° Partly Cloudy 17% 8 mph NNE 78%
11 AM 25° Partly Cloudy 17% 9 mph NNE 75%
12 PM 26° Mostly Cloudy 22% 10 mph NNE 72%
1 PM 28° Mostly Cloudy 22% 10 mph NNE 70%
2 PM 27° Mostly Cloudy 17% 10 mph NNE 69%
3 PM 28° Partly Cloudy 17% 11 mph NNE 69%
4 PM 27° Partly Cloudy 3% 11 mph NNE 70%
5 PM 27° Partly Cloudy 3% 10 mph NNE 71%
6 PM 26° Mostly Clear 3% 10 mph NNE 72%
7 PM 26° Mostly Clear 3% 10 mph NNE 74%
15-Day Forecast
Today
7/21
Clear
14%
19°
33°
Wed
7/22
Partly Cloudy
17%
17°
29°
Thu
7/23
Clear
3%
14°
27°
Fri
7/24
Overcast
57%
16°
23°
Sat
7/25
Mostly Cloudy
47%
18°
29°
Sun
7/26
Thunderstorm
43%
22°
34°
Mon
7/27
Clear
31%
23°
34°
Tue
7/28
Clear
17%
19°
31°
Wed
7/29
Drizzle
44%
18°
29°
Thu
7/30
Drizzle
44%
16°
29°
Fri
7/31
Clear
25%
16°
29°
Sat
8/1
Drizzle
60%
18°
29°
Sun
8/2
Clear
60%
19°
31°
Mon
8/3
Drizzle
60%
19°
31°
Tue
8/4
Drizzle
60%
20°
31°
52
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
52 AQI 9.4 µg/m³
O3
Ground-level ozone
30 AQI 33 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 52 Moderate 30 52
Thu 30 Good 30 23
Fri 34 Good 34 17
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 Jul 21, 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
SBCAPE542 J/kg
MLCAPE10 J/kg
MUCAPE542 J/kg
SBCIN-166 J/kg
MLCIN0 J/kg
Lifted Index-1.2
Kinematics
0–6 km Shear41 kt
0–1 km Shear11 kt
Eff. Shear46 kt
0–1 km SRH-96
0–3 km SRH-96
Eff. SRH-96
Storm Motion270° @ 31 kt
0–1 km EHI-0.3
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index10.4
Thermo & Levels
PWAT1.45 in
0–3 km LR5.1 °C/km
700–500 LR5.3 °C/km
Total Totals40.9
LCL932 hPa
LFC813 hPa
EL178 hPa
Freezing Lvl16,959 ft