James City County, Virginia, United States

Last updated: 10:26 PM CDT  ·  Refresh
24°C
Feels like 28°
Rain
▲ 33°  /  ▼ 20°
Wind
4 mph NNW
Humidity
94%
Dew Point
23°
Pressure
29.88 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
48%
Sunrise
6:27 AM
Sunset
7:52 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: James City County is currently rain at 24°C. Precipitation is likely — peak probability 85% around 11 PM. Atmospheric instability is elevated (CAPE up to 601 J/kg) — isolated convective development possible. Sunrise: 6:27AM · Sunset: 7:52PM.

Alerts

No active alerts for this location.
41 AQI · Good Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
24°
57%
12 AM
24°
63%
1 AM
23°
52%
2 AM
22°
14%
3 AM
22°
13%
4 AM
21°
14%
5 AM
20°
15%
6 AM
20°
16%
7 AM
20°
16%
8 AM
21°
21%
9 AM
22°
29%
10 AM
22°
30%
11 AM
23°
31%
12 PM
24°
31%
1 PM
26°
32%
2 PM
26°
32%
3 PM
26°
44%
4 PM
27°
54%
5 PM
28°
55%
6 PM
27°
61%
7 PM
26°
62%
8 PM
26°
72%
9 PM
25°
76%
10 PM
24°
76%
7-Day Forecast
Tonight
33° 20°
Rain, 57% chance.
Fri
28° 20°
Partly Cloudy with a 84% chance of rain.
Sat
28° 21°
Rain, 90% chance.
Sun
32° 21°
Partly Cloudy with a 57% chance of rain.
Mon
31° 20°
Clear.
Tue
29° 19°
Heavy Rain, 82% chance.
Wed
31° 19°
Heavy Rain, 82% chance.
TimeTempConditionsPrecipWindHumidity
Now 24° Rain 57% 4 mph NNW 94%
12 AM 24° Partly Cloudy 63% 5 mph NNW 94%
1 AM 23° Partly Cloudy 52% 6 mph NNW 93%
2 AM 22° Partly Cloudy 14% 6 mph NNW 93%
3 AM 22° Partly Cloudy 13% 7 mph N 93%
4 AM 21° Mostly Cloudy 14% 7 mph N 94%
5 AM 20° Overcast 15% 6 mph N 94%
6 AM 20° Overcast 16% 6 mph N 93%
7 AM 20° Overcast 16% 6 mph N 92%
8 AM 21° Overcast 21% 7 mph N 90%
9 AM 22° Mostly Cloudy 29% 7 mph N 85%
10 AM 22° Mostly Cloudy 30% 6 mph N 81%
11 AM 23° Partly Cloudy 31% 6 mph N 77%
12 PM 24° Partly Cloudy 31% 5 mph N 74%
1 PM 26° Partly Cloudy 32% 5 mph N 72%
2 PM 26° Mostly Clear 32% 4 mph NNE 70%
3 PM 26° Mostly Clear 44% 4 mph NE 67%
4 PM 27° Mostly Clear 54% 5 mph NE 65%
5 PM 28° Mostly Clear 55% 5 mph ENE 65%
6 PM 27° Partly Cloudy 61% 5 mph ENE 67%
7 PM 26° Partly Cloudy 62% 5 mph E 70%
8 PM 26° Partly Cloudy 72% 5 mph E 72%
9 PM 25° Partly Cloudy 76% 5 mph E 76%
10 PM 24° Partly Cloudy 76% 4 mph E 79%
15-Day Forecast
Today
8/20
Rain
57%
20°
33°
Fri
8/21
Partly Cloudy
84%
20°
28°
Sat
8/22
Rain
90%
21°
28°
Sun
8/23
Partly Cloudy
57%
21°
32°
Mon
8/24
Clear
16%
20°
31°
Tue
8/25
Heavy Rain
82%
19°
29°
Wed
8/26
Heavy Rain
82%
19°
31°
Thu
8/27
Rain
82%
21°
31°
Fri
8/28
Drizzle
44%
21°
32°
Sat
8/29
Rain
68%
21°
33°
Sun
8/30
Drizzle
60%
21°
33°
Mon
8/31
Drizzle
60%
21°
33°
Tue
9/1
Drizzle
60%
19°
31°
Wed
9/2
Drizzle
60%
19°
30°
Thu
9/3
Drizzle
60%
19°
29°
41
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
41 AQI 7.3 µg/m³
O3
Ground-level ozone
38 AQI 41 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 41 Good 38 41
Sat 31 Good 31 22
Sun 32 Good 32 19
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 Fri Aug 21, 01:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 50 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE641 J/kg
MLCAPE418 J/kg
MUCAPE875 J/kg
SBCIN-28 J/kg
MLCIN-30 J/kg
Lifted Index-2.2
Kinematics
0–6 km Shear25 kt
0–1 km Shear9 kt
Eff. Shear25 kt
0–1 km SRH-45
0–3 km SRH38
Eff. SRH38
Storm Motion287° @ 27 kt
0–1 km EHI-0.2
Composite Parameters
Sig. Tornado0.0
STP (eff)0.1
Supercell0.4
K-Index32.2
Thermo & Levels
PWAT1.87 in
0–3 km LR5.0 °C/km
700–500 LR5.4 °C/km
Total Totals44.2
LCL991 hPa
LFC848 hPa
EL244 hPa
Freezing Lvl15,741 ft