Excessive Heat Warning — Dorchester, MD, Wicomico, MD, Somerset, MD, Inland Worcester, MD, Northampton, NC, Hertford, NC, Gates, NC, Pasquotank, NC, Camden, NC, Western Currituck, NC, Bertie, NC, Chowan, NC, Perquimans, NC, Fluvanna, VA, Prince Edward, VA, Cumberland, VA, Goochland, VA, Caroline, VA, Nottoway, VA, Amelia, VA, Powhatan, VA, Westmoreland, VA, Richmond, VA, Northumberland, VA, Lancaster, VA, Dinwiddie, VA, Prince George, VA, Charles City, VA, New Kent, VA, Gloucester, VA, Middlesex, VA, Mathews, VA, Sussex, VA, Surry, VA, James City, VA, Western Louisa, VA, Eastern Louisa, VA, Western Hanover, VA, Eastern Hanover, VA, Western Chesterfield, VA, Eastern Chesterfield (Including Col. Heights), VA, Western Henrico (Including the City of Richmond), VA, Eastern Henrico, VA, Western King William, VA, Eastern King William, VA, Western King and Queen, VA, Eastern King and Queen, VA, Western Essex, VA, Eastern Essex, VA, York, VA, Mecklenburg, VA, Lunenburg, VA, Brunswick, VA, Greensville, VA, Southampton, VA, Chesapeake, VA, Virginia Beach, VA, Accomack, VA, Northampton, VA, Newport News, VA, Hampton/Poquoson, VA, Isle of Wight, VA, Suffolk, VA, Norfolk, VA, Portsmouth, VA, Eastern Currituck, NC 7:00 PM Heat Advisory — Dorchester, MD, Wicomico, MD, Somerset, MD, Inland Worcester, MD, Northampton, NC, Hertford, NC, Gates, NC, Pasquotank, NC, Camden, NC, Western Currituck, NC, Bertie, NC, Chowan, NC, Perquimans, NC, Fluvanna, VA, Prince Edward, VA, Cumberland, VA, Goochland, VA, Caroline, VA, Mecklenburg, VA, Lunenburg, VA, Nottoway, VA, Amelia, VA, Powhatan, VA, Westmoreland, VA, Richmond, VA, Northumberland, VA, Lancaster, VA, Brunswick, VA, Dinwiddie, VA, Prince George, VA, Charles City, VA, New Kent, VA, Gloucester, VA, Middlesex, VA, Mathews, VA, Greensville, VA, Sussex, VA, Surry, VA, James City, VA, Southampton, VA, Chesapeake, VA, Virginia Beach, VA, Western Louisa, VA, Eastern Louisa, VA, Western Hanover, VA, Eastern Hanover, VA, Western Chesterfield, VA, Eastern Chesterfield (Including Col. Heights), VA, Western Henrico (Including the City of Richmond), VA, Eastern Henrico, VA, Western King William, VA, Eastern King William, VA, Western King and Queen, VA, Eastern King and Queen, VA, Western Essex, VA, Eastern Essex, VA, York, VA, Newport News, VA, Hampton/Poquoson, VA, Isle of Wight, VA, Suffolk, VA, Norfolk, VA, Portsmouth, VA, Accomack, VA, Northampton, VA, Eastern Currituck, NC 7:00 PM

Portsmouth, Virginia

Last updated: 3:12 PM CDT  ·  Refresh
38°C
Feels like 43°
Mostly Cloudy
▲ 39°  /  ▼ 24°
Wind
8 mph SSW
Humidity
38%
Dew Point
22°
Pressure
29.91 inHg
Visibility
9 mi
UV Index
6.6
Cloud Cover
63%
Sunrise
5:51 AM
Sunset
8:27 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Portsmouth is currently mostly cloudy at 38°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 2778 J/kg) — isolated convective development possible. Sunrise: 5:51AM · Sunset: 8:27PM.

Alerts

Excessive Heat Warning
Dorchester, MD, Wicomico, MD, Somerset, MD, Inland Worcester, MD, Northampton, NC, Hertford, NC, Gates, NC, Pasquotank, NC, Camden, NC, Western Currituck, NC, Bertie, NC, Chowan, NC, Perquimans, NC, Fluvanna, VA, Prince Edward, VA, Cumberland, VA, Goochland, VA, Caroline, VA, Nottoway, VA, Amelia, VA, Powhatan, VA, Westmoreland, VA, Richmond, VA, Northumberland, VA, Lancaster, VA, Dinwiddie, VA, Prince George, VA, Charles City, VA, New Kent, VA, Gloucester, VA, Middlesex, VA, Mathews, VA, Sussex, VA, Surry, VA, James City, VA, Western Louisa, VA, Eastern Louisa, VA, Western Hanover, VA, Eastern Hanover, VA, Western Chesterfield, VA, Eastern Chesterfield (Including Col. Heights), VA, Western Henrico (Including the City of Richmond), VA, Eastern Henrico, VA, Western King William, VA, Eastern King William, VA, Western King and Queen, VA, Eastern King and Queen, VA, Western Essex, VA, Eastern Essex, VA, York, VA, Mecklenburg, VA, Lunenburg, VA, Brunswick, VA, Greensville, VA, Southampton, VA, Chesapeake, VA, Virginia Beach, VA, Accomack, VA, Northampton, VA, Newport News, VA, Hampton/Poquoson, VA, Isle of Wight, VA, Suffolk, VA, Norfolk, VA, Portsmouth, VA, Eastern Currituck, NC
Expires 7:00 PM
Heat Advisory
Dorchester, MD, Wicomico, MD, Somerset, MD, Inland Worcester, MD, Northampton, NC, Hertford, NC, Gates, NC, Pasquotank, NC, Camden, NC, Western Currituck, NC, Bertie, NC, Chowan, NC, Perquimans, NC, Fluvanna, VA, Prince Edward, VA, Cumberland, VA, Goochland, VA, Caroline, VA, Mecklenburg, VA, Lunenburg, VA, Nottoway, VA, Amelia, VA, Powhatan, VA, Westmoreland, VA, Richmond, VA, Northumberland, VA, Lancaster, VA, Brunswick, VA, Dinwiddie, VA, Prince George, VA, Charles City, VA, New Kent, VA, Gloucester, VA, Middlesex, VA, Mathews, VA, Greensville, VA, Sussex, VA, Surry, VA, James City, VA, Southampton, VA, Chesapeake, VA, Virginia Beach, VA, Western Louisa, VA, Eastern Louisa, VA, Western Hanover, VA, Eastern Hanover, VA, Western Chesterfield, VA, Eastern Chesterfield (Including Col. Heights), VA, Western Henrico (Including the City of Richmond), VA, Eastern Henrico, VA, Western King William, VA, Eastern King William, VA, Western King and Queen, VA, Eastern King and Queen, VA, Western Essex, VA, Eastern Essex, VA, York, VA, Newport News, VA, Hampton/Poquoson, VA, Isle of Wight, VA, Suffolk, VA, Norfolk, VA, Portsmouth, VA, Accomack, VA, Northampton, VA, Eastern Currituck, NC
Expires 7:00 PM
61 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
38°
3%
5 PM
39°
13%
6 PM
38°
12%
7 PM
36°
12%
8 PM
34°
12%
9 PM
33°
12%
10 PM
31°
12%
11 PM
30°
3%
12 AM
29°
3%
1 AM
28°
3%
2 AM
27°
3%
3 AM
27°
3%
4 AM
26°
3%
5 AM
24°
3%
6 AM
24°
3%
7 AM
25°
3%
8 AM
26°
3%
9 AM
26°
3%
10 AM
28°
9%
11 AM
31°
9%
12 PM
31°
9%
1 PM
33°
9%
2 PM
33°
9%
3 PM
35°
13%
7-Day Forecast
Today
39° 24°
Mostly Cloudy.
Sun
36° 24°
Mostly Clear with a 25% chance of rain.
Mon
34° 24°
Partly Cloudy with a 85% chance of rain.
Tue
30° 23°
Mostly Cloudy with a 90% chance of rain.
Wed
28° 22°
Clear.
Thu
32° 22°
Rain, 64% chance.
Fri
34° 24°
Drizzle, 63% chance.
TimeTempConditionsPrecipWindHumidity
Now 38° Mostly Cloudy 3% 8 mph SSW 38%
5 PM 39° Overcast 13% 9 mph S 38%
6 PM 38° Overcast 12% 9 mph S 42%
7 PM 36° Mostly Cloudy 12% 9 mph S 46%
8 PM 34° Partly Cloudy 12% 9 mph S 51%
9 PM 33° Mostly Cloudy 12% 8 mph S 56%
10 PM 31° Mostly Cloudy 12% 8 mph S 60%
11 PM 30° Mostly Cloudy 3% 8 mph S 64%
12 AM 29° Mostly Cloudy 3% 8 mph S 68%
1 AM 28° Mostly Cloudy 3% 8 mph S 71%
2 AM 27° Mostly Cloudy 3% 8 mph S 73%
3 AM 27° Partly Cloudy 3% 7 mph S 74%
4 AM 26° Partly Cloudy 3% 7 mph SSW 75%
5 AM 24° Partly Cloudy 3% 6 mph SSW 75%
6 AM 24° Partly Cloudy 3% 6 mph SSW 74%
7 AM 25° Mostly Clear 3% 6 mph SSW 72%
8 AM 26° Clear 3% 6 mph SSW 68%
9 AM 26° Clear 3% 6 mph SSW 62%
10 AM 28° Mostly Clear 9% 6 mph SSW 56%
11 AM 31° Mostly Clear 9% 6 mph SSW 51%
12 PM 31° Mostly Clear 9% 6 mph SSW 49%
1 PM 33° Partly Cloudy 9% 6 mph S 46%
2 PM 33° Partly Cloudy 9% 6 mph S 44%
3 PM 35° Partly Cloudy 13% 7 mph SSE 45%
15-Day Forecast
Today
7/4
Mostly Cloudy
12%
24°
39°
Sun
7/5
Mostly Clear
25%
24°
36°
Mon
7/6
Partly Cloudy
85%
24°
34°
Tue
7/7
Mostly Cloudy
90%
23°
30°
Wed
7/8
Clear
16%
22°
28°
Thu
7/9
Rain
64%
22°
32°
Fri
7/10
Drizzle
63%
24°
34°
Sat
7/11
Drizzle
42%
24°
33°
Sun
7/12
Rain
68%
24°
32°
Mon
7/13
Rain
68%
23°
30°
Tue
7/14
Drizzle
60%
21°
29°
Wed
7/15
Rain
90%
23°
29°
Thu
7/16
Drizzle
60%
23°
31°
Fri
7/17
Drizzle
60%
23°
30°
Sat
7/18
Rain
90%
23°
29°
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 14.8 µg/m³
O3
Ground-level ozone
36 AQI 39 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Sun 61 Moderate 36 61
Mon 54 Moderate 27 54
Tue 52 Moderate 33 52
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 Sat Jul 4, 18:00'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
SBCAPE3642 J/kg
MLCAPE2852 J/kg
MUCAPE3642 J/kg
SBCIN0 J/kg
MLCIN0 J/kg
Lifted Index-7.9
Kinematics
0–6 km Shear6 kt
0–1 km Shear1 kt
Eff. Shear8 kt
0–1 km SRH-3
0–3 km SRH-16
Eff. SRH-16
Storm Motion224° @ 20 kt
0–1 km EHI-0.1
Composite Parameters
Sig. Tornado-0.0
STP (eff)0.0
Supercell0.0
K-Index25.8
Thermo & Levels
PWAT1.68 in
0–3 km LR8.6 °C/km
700–500 LR6.7 °C/km
Total Totals51.2
LCL802 hPa
LFC1013 hPa
EL150 hPa
Freezing Lvl14,678 ft