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Prince William County (Haymarket)
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10 day weather forecast for Prince William County

Wednesday, September 16th, 2026, at 12:19 PM
today
Sunny
29° 14°
tomorrow
Sunny
30° 17°
Friday
Patchy rain possible
28° 21°
Saturday
Overcast
26° 20°
Sunday
Light rain shower
27° 19°
Monday
Fog
23° 20°
Tuesday
Light rain shower
24° 20°
 More Details See
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Prince William County Weather Pages

Prince William County weather forecast

The weather forecast for Prince William County over the next 5 days indicates warm conditions with temperatures ranging from 26 °F to 30 °F.

Rain is expected from Thursday until Sunday, accompanied by a gentle breeze.

Weather today
Prince William County weather forecast

Prince William County 14 days weather forecast

This weeks weather in Prince William County. Click on a date for detailed forecasts
Wed. 16
29°
14°
Sunny
0 mm
Thu. 17
30°
17°
Sunny
2 mm
Fri. 18
28°
21°
Patchy rain possible
0.8 mm
Sat. 19
26°
20°
Overcast
0.2 mm
Sun. 20
27°
19°
Light rain shower
3 mm
Mon. 21
23°
20°
Fog
3.7 mm
Tue. 22
24°
20°
Light rain shower
9.8 mm
Wed. 23
27°
19°
Patchy rain possible
8.4 mm
Thu. 24
29°
18°
Mist
0.6 mm
Fri. 25
21°
14°
Partly cloudy
0.4 mm
Sat. 26
24°
15°
Sunny
0 mm
Sun. 27
26°
15°
Sunny
0 mm
Mon. 28
27°
16°
Fog
0 mm
Tue. 29
29°
16°
Sunny
0 mm
Further Ahead
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Access Prince William County weather forecasts with a simple click. Select any date for comprehensive insights on temperature, rainfall, and wind conditions.
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Prince William County long range weather forecast

30 day weather forecast for Prince William County
August
October
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Overcast
31°
2
Overcast
31°
3
Cloudy
31°
4
Cloudy
33°
5
Mist
30°
6
Moderate or heavy rain shower
30°
7
Overcast
27°
8
Sunny
27°
9
Partly cloudy
28°
10
Overcast
27°
11
Cloudy
26°
12
Sunny
28°
13
Sunny
29°
14
Partly cloudy
28°
15
Cloudy
27°
16
Sunny
29°
17
Sunny
30°
18
Patchy rain possible
28°
19
Overcast
26°
20
Light rain shower
27°
21
Fog
23°
22
Light rain shower
24°
23
Patchy rain possible
27°
24
Mist
29°
25
Partly cloudy
21°
26
Sunny
24°
27
Sunny
26°
28
Fog
27°
29
Sunny
29°
30
Overcast
25°
Important Notice
Our Prince William County long range weather forecast is based on historical data analysis rather than real-time forecasting models. While this provides a general outlook, weather conditions can change. We recommend checking the forecast closer to your planned date for the most current information.

Rain Forecast for the Next 14 Days in Prince William County

The chart displays the expected rainfall values (in mm) over the next 14 days in Prince William County, highlighting variations in precipitation levels for specific dates. ☔

Prince William County Wind Speed Forecast Chart

This chart illustrates the projected daily max wind speed (in km) in Prince William County over the next two weeks, providing insights into periods of increased or decreased wind activity. 🌀

Frequently asked questions about the weather in Prince William County

How warm is it in Prince William County over the next 14 days?
Over the next two weeks, temperatures in Prince William County are expected to range from around 14 °F on the coldest nights up to about 30 °F on the warmest days. Use this range to plan what to pack and wear.

Will it rain in Prince William County in the next two weeks?
Yes - rain is expected on about 9 of the next 14 days in Prince William County, with roughly 28.8 mm of rainfall in total. It is worth keeping an umbrella or raincoat handy.

How windy is it in Prince William County?
Maximum wind speeds in Prince William County are forecast to reach about 17 km/h at their peak over the next 14 days.

When is the best time to visit Prince William County?
For a month-by-month look at temperatures and rainfall, see our best time to visit Prince William County guide.

How accurate is the 14-day forecast for Prince William County?
Our Prince William County forecast uses leading meteorological models and is most reliable over the next few days. Long-range days beyond a week show general trends and can change, so check back closer to the date for updates.

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Location coordinates Where is Prince William County?

Get accurate weather forecasts for Prince William County, located at latitude 38.812 and longitude -77.636. Stay updated with localized weather information tailored for Prince William County.

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