Jefferson County, West Virginia, United States

Last updated: 9:23 PM CDT  ·  Refresh
23°C
Feels like 26°
Mostly Cloudy
▲ 37°  /  ▼ 19°
Wind
4 mph SSE
Humidity
88%
Dew Point
21°
Pressure
29.40 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
76%
Sunrise
5:50 AM
Sunset
8:41 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Jefferson County is currently mostly cloudy at 23°C. Precipitation is likely — peak probability 65% around 10 PM. Atmospheric instability is elevated (CAPE up to 1237 J/kg) — isolated convective development possible. Sunrise: 5:50AM · Sunset: 8:41PM.

Alerts

No active alerts for this location.
61 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
23°
36%
11 PM
23°
43%
12 AM
23°
29%
1 AM
22°
27%
2 AM
22°
9%
3 AM
22°
10%
4 AM
21°
11%
5 AM
19°
11%
6 AM
20°
11%
7 AM
21°
5%
8 AM
22°
21%
9 AM
24°
31%
10 AM
26°
32%
11 AM
28°
41%
12 PM
29°
53%
1 PM
33°
43%
2 PM
33°
47%
3 PM
33°
53%
4 PM
33°
54%
5 PM
32°
62%
6 PM
30°
60%
7 PM
28°
61%
8 PM
27°
61%
9 PM
25°
62%
7-Day Forecast
Tonight
37° 19°
Mostly Cloudy with a 36% chance of rain.
Sun
34° 19°
Partly Cloudy with a 65% chance of rain.
Mon
29° 19°
Rain, 90% chance.
Tue
29° 18°
Drizzle, 60% chance.
Wed
28° 18°
Clear with a 31% chance of rain.
Thu
33° 19°
Drizzle, 51% chance.
Fri
34° 20°
Rain, 71% chance.
TimeTempConditionsPrecipWindHumidity
Now 23° Mostly Cloudy 36% 4 mph SSE 88%
11 PM 23° Overcast 43% 5 mph SE 89%
12 AM 23° Mostly Cloudy 29% 4 mph SSE 89%
1 AM 22° Mostly Cloudy 27% 3 mph SW 89%
2 AM 22° Overcast 9% 4 mph SW 90%
3 AM 22° Overcast 10% 4 mph WSW 92%
4 AM 21° Overcast 11% 4 mph WNW 93%
5 AM 19° Overcast 11% 4 mph NW 93%
6 AM 20° Overcast 11% 3 mph NW 92%
7 AM 21° Mostly Cloudy 5% 2 mph SSW 90%
8 AM 22° Mostly Cloudy 21% 2 mph S 85%
9 AM 24° Mostly Cloudy 31% 3 mph SSE 77%
10 AM 26° Partly Cloudy 32% 3 mph SSE 70%
11 AM 28° Partly Cloudy 41% 3 mph SSE 64%
12 PM 29° Mostly Clear 53% 3 mph SSE 58%
1 PM 33° Mostly Clear 43% 3 mph SSE 53%
2 PM 33° Partly Cloudy 47% 4 mph SSE 50%
3 PM 33° Partly Cloudy 53% 5 mph S 51%
4 PM 33° Mostly Cloudy 54% 6 mph S 53%
5 PM 32° Overcast 62% 6 mph S 59%
6 PM 30° Overcast 60% 4 mph SSW 67%
7 PM 28° Heavy Rain 61% 4 mph NW 76%
8 PM 27° Heavy Rain 61% 5 mph N 82%
9 PM 25° Heavy Rain 62% 4 mph NNE 83%
15-Day Forecast
Today
7/4
Mostly Cloudy
36%
19°
37°
Sun
7/5
Partly Cloudy
65%
19°
34°
Mon
7/6
Rain
90%
19°
29°
Tue
7/7
Drizzle
60%
18°
29°
Wed
7/8
Clear
31%
18°
28°
Thu
7/9
Drizzle
51%
19°
33°
Fri
7/10
Rain
71%
20°
34°
Sat
7/11
Rain
63%
18°
31°
Sun
7/12
Rain
68%
16°
31°
Mon
7/13
Drizzle
44%
15°
31°
Tue
7/14
Drizzle
60%
18°
33°
Wed
7/15
Drizzle
60%
19°
34°
Thu
7/16
Drizzle
60%
18°
34°
Fri
7/17
Drizzle
60%
17°
33°
Sat
7/18
Drizzle
60%
19°
33°
61
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
61 AQI 14.6 µg/m³
O3
Ground-level ozone
44 AQI 48 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 61 Moderate 44 61
Mon 53 Moderate 39 53
Tue 48 Good 40 48
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 Sun Jul 5, 01:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE294 J/kg
MLCAPE306 J/kg
MUCAPE324 J/kg
SBCIN-304 J/kg
MLCIN0 J/kg
Lifted Index-2.2
Kinematics
0–6 km Shear19 kt
0–1 km Shear15 kt
Eff. Shear7 kt
0–1 km SRH-56
0–3 km SRH-58
Eff. SRH-26
Storm Motion205° @ 27 kt
0–1 km EHI-0.1
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index39.1
Thermo & Levels
PWAT1.99 in
0–3 km LR5.1 °C/km
700–500 LR5.7 °C/km
Total Totals47.8
LCL968 hPa
LFC728 hPa
EL424 hPa
Freezing Lvl13,678 ft