James City County, Virginia, United States

Last updated: 10:36 PM CDT · Refresh

26°C

Feels like 28°

Overcast

▲ 31° / ▼ 22°

Wind

8 mph SSW

Humidity

80%

Dew Point

23°

Pressure

29.71 inHg

Visibility

10 mi

UV Index

0.0

Cloud Cover

87%

Sunrise

6:03 AM

Sunset

8:23 PM

Drag to pan · double-click to forecast a point

WeatherAI™ Analysis

WeatherAI Analysis: James City County is currently overcast at 26°C. Precipitation is likely — peak probability 90% around 12 AM. Atmospheric instability is elevated (CAPE up to 1339 J/kg) — isolated convective development possible. Sunrise: 6:03AM · Sunset: 8:23PM.

44 AQI · Good Dominant: PM2.5 Air Quality

Hourly Forecast · Next 24 Hours

Now

26°

82%

12 AM

26°

90%

1 AM

24°

71%

2 AM

24°

90%

3 AM

24°

90%

4 AM

23°

86%

5 AM

22°

72%

6 AM

22°

72%

7 AM

23°

67%

8 AM

23°

63%

9 AM

23°

68%

10 AM

24°

68%

11 AM

24°

90%

12 PM

25°

77%

1 PM

27°

90%

2 PM

27°

90%

3 PM

28°

85%

4 PM

28°

85%

5 PM

27°

85%

6 PM

27°

76%

7 PM

26°

76%

8 PM

26°

81%

9 PM

25°

81%

10 PM

25°

81%

7-Day Forecast

Tonight

31° 22°

Overcast with a 82% chance of rain.

Wed

29° 22°

Heavy Rain, 90% chance.

Thu

27° 19°

Partly Cloudy with a 80% chance of rain.

Fri

29° 18°

Mostly Clear with a 60% chance of rain.

Sat

26° 19°

Drizzle, 51% chance.

Sun

31° 18°

Rain, 70% chance.

Mon

34° 19°

Rain, 63% chance.

+ Feels like

TimeTempConditionsPrecipWindHumidity

Now 26° Overcast 82% 8 mph SSW 80%

12 AM 26° Overcast 90% 7 mph SW 87%

1 AM 24° Overcast 71% 7 mph SW 94%

2 AM 24° Overcast 90% 8 mph SSW 96%

3 AM 24° Heavy Rain 90% 9 mph SSW 94%

4 AM 23° Thunderstorm 86% 10 mph SSW 92%

5 AM 22° Thunderstorm 72% 11 mph SW 91%

6 AM 22° Heavy Rain 72% 11 mph SW 91%

7 AM 23° Heavy Rain 67% 11 mph SW 91%

8 AM 23° Heavy Rain 63% 12 mph SW 89%

9 AM 23° Heavy Rain 68% 12 mph SW 85%

10 AM 24° Heavy Rain 68% 12 mph SW 82%

11 AM 24° Heavy Rain 90% 12 mph SW 80%

12 PM 25° Heavy Rain 77% 12 mph SW 78%

1 PM 27° Heavy Rain 90% 12 mph SW 77%

2 PM 27° Heavy Rain 90% 12 mph SW 76%

3 PM 28° Mostly Cloudy 85% 11 mph SSW 76%

4 PM 28° Mostly Cloudy 85% 10 mph SSW 76%

5 PM 27° Mostly Cloudy 85% 9 mph SSW 78%

6 PM 27° Mostly Cloudy 76% 9 mph SSW 80%

7 PM 26° Mostly Cloudy 76% 9 mph SSW 81%

8 PM 26° Overcast 81% 8 mph SSW 83%

9 PM 25° Overcast 81% 8 mph SW 85%

10 PM 25° Heavy Rain 81% 7 mph SW 87%

15-Day Forecast

Today

7/21

Overcast

82%

22°

31°

Wed

7/22

Heavy Rain

90%

22°

29°

Thu

7/23

Partly Cloudy

80%

19°

27°

Fri

7/24

Mostly Clear

60%

18°

29°

Sat

7/25

Drizzle

51%

19°

26°

Sun

7/26

Rain

70%

18°

31°

Mon

7/27

Rain

63%

19°

34°

Tue

7/28

Thunderstorm

71%

21°

36°

Wed

7/29

Rain

68%

19°

31°

Thu

7/30

Drizzle

44%

19°

30°

Fri

7/31

Drizzle

60%

18°

30°

Sat

8/1

Drizzle

60%

20°

30°

Sun

8/2

Drizzle

60%

20°

29°

Mon

8/3

Drizzle

60%

21°

32°

Tue

8/4

Drizzle

60%

22°

33°

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

PM_2.5

Fine particulate matter

Dominant

44 AQI 8.0 µg/m³

O₃

Ground-level ozone

31 AQI 34 ppb

3-Day Outlook

DayAQICategoryO₃PM2.5

Today 44 Good 31 44

Thu 55 Moderate 31 55

Fri 23 Good 23 23

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. PM_2.5 (fine particles) is reported in µg/m³ and ozone (O₃) in ppb. Forecast source: NWS NAQFC.

Temp Dewpoint Parcel (SB) CAPE CIN Dry adiabat Moist adiabat Mixing ratio

RAP

Valid Wed Jul 22, 02:00'Z' · F0 · 130 (13 km CONUS/NA)

Hodograph · kt

0–1 1–3 3–6 6–9 km

Instability

SBCAPE1098 J/kg

MLCAPE1477 J/kg

MUCAPE1806 J/kg

SBCIN-62 J/kg

MLCIN0 J/kg

Lifted Index-3.1

Kinematics

0–6 km Shear38 kt

0–1 km Shear31 kt

Eff. Shear38 kt

0–1 km SRH-24

0–3 km SRH-8

Eff. SRH-8

Storm Motion224° @ 42 kt

0–1 km EHI-0.2

Composite Parameters

Sig. Tornado0.0

STP (eff)0.0

Supercell0.0

K-Index37.5

Thermo & Levels

PWAT2.53 in

0–3 km LR5.4 °C/km

700–500 LR5.4 °C/km

Total Totals47.7

LCL966 hPa

LFC806 hPa

EL174 hPa

Freezing Lvl15,174 ft

James City County, Virginia, United States

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