Prince William County, VA Weather Forecast
County weather hub
Sunny
Compare major city weather across Prince William County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Sunny, with a high near 96. Heat index values as high as 106. West wind around 9 mph.
County Weather Overview
This county weather page brings together forecast coverage for Prince William County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 2 of 2 mapped cities in Prince William County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- Jul 16 to Jul 22, 2026
- Latest sync
- Jul 16, 2026 3:54 PM EDT
- Forecast office
- LWX
- Source
- NOAA / NWS
Daily Outlook
This Week in Prince William County
This Afternoon looks like the warmest upcoming period in Prince William County at 96 degrees F.
Sunday Night is the coolest period ahead with temperatures near 65 degrees F.
The strongest winds are forecast for Saturday at about 2 to 12 mph S.
Precipitation is mentioned in 11 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 16, 2026 3:54 PM EDT
- Coverage
- 7 days
- Time zone
- America/New_York
- Forecast office
- LWX
- Radar station
- KLWX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Isolated showers and thunderstorms between 8pm and 10pm, then areas of smoke. Mostly clear, with a low around 72. Heat index values as high as 100. Northwest wind 2 to 8 mph. Chance of precipitation is 20%.
Smoke. Sunny, with a high near 91. North wind 1 to 5 mph.
Smoke before 2am, then smoke and a chance of showers and thunderstorms. Partly cloudy, with a low around 71. Southeast wind around 3 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
Smoke and a chance of showers and thunderstorms before 11am, then areas of smoke and a chance of showers and thunderstorms between 11am and 2pm, then showers and thunderstorms. Partly sunny, with a high near 91. South wind 2 to 12 mph, with gusts as high as 20 mph. Chance of precipitation is 90%.
Showers and thunderstorms. Mostly cloudy, with a low around 72. Chance of precipitation is 90%.
A chance of rain showers before 11am, then a chance of showers and thunderstorms. Partly sunny, with a high near 88. Chance of precipitation is 30%.
A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 65. Chance of precipitation is 30%.
Sunny, with a high near 88.
A slight chance of rain showers after 2am. Partly cloudy, with a low around 68. Chance of precipitation is 20%.
A slight chance of rain showers before 8am, then a chance of showers and thunderstorms. Partly sunny, with a high near 90. Chance of precipitation is 40%.
A chance of showers and thunderstorms before 8pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 68. Chance of precipitation is 50%.
A chance of rain showers before 2pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 88. Chance of precipitation is 30%.
A chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 65.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
This Afternoon
Jul 16
|
Sunny
|
96°F |
9 mph
W
|
|
Tonight
Jul 16
|
Isolated Showers And Thunderstorms then Areas Of Smoke
|
72°F |
2 to 8 mph
NW
|
|
Friday
Jul 17
|
Smoke
|
91°F |
1 to 5 mph
N
|
|
Friday Night
Jul 17
|
Smoke
|
71°F |
3 mph
SE
|
|
Saturday
Jul 18
|
Smoke
|
91°F |
2 to 12 mph
S
|
|
Saturday Night
Jul 18
|
Showers And Thunderstorms
|
72°F |
3 to 8 mph
SW
|
|
Sunday
Jul 19
|
Chance Showers And Thunderstorms
|
88°F |
3 to 8 mph
NW
|
|
Sunday Night
Jul 19
|
Chance Showers And Thunderstorms then Partly Cloudy
|
65°F |
1 to 6 mph
N
|
|
Monday
Jul 20
|
Sunny
|
88°F |
6 mph
E
|
|
Monday Night
Jul 20
|
Partly Cloudy then Slight Chance Rain Showers
|
68°F |
1 to 6 mph
S
|
|
Tuesday
Jul 21
|
Chance Showers And Thunderstorms
|
90°F |
5 to 12 mph
SW
|
|
Tuesday Night
Jul 21
|
Chance Showers And Thunderstorms
|
68°F |
6 to 9 mph
W
|
|
Wednesday
Jul 22
|
Chance Rain Showers
|
88°F |
7 to 10 mph
NW
|
|
Wednesday Night
Jul 22
|
Chance Showers And Thunderstorms
|
65°F |
3 to 8 mph
N
|
Major City Forecasts
Live forecast snapshots for major cities across Prince William County.
Coverage
Forecast coverage currently spans 2 of 2 mapped cities in Prince William County.
Largest mapped city population in this region: 8,188.
