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Prince William County (Haymarket)
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United States weather

Weather in Prince William County, Virginia for August 2026

Your guide to Prince William County weather in August - trends and predictions

    Temperatures

  • In general, the average temperature in Prince William County at the beginning of August is 25.6 °C. As the month progressed, temperatures tended to slightly decrease, reaching an average of 25.1 °C by the end of August.

    • Rain 🌧️

  • With an average of 4 rainy days, Prince William County experiences minimal rainfall in August.

    • More

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Average dry days
27
Dry days
Average rainy days
4
Rainy days
Average snowy days
0
Snow days
Average temperatures
28°/19°
Temperatures
Average wind speed
12 km/h
Avg max wind
Average humidity
71 %
Avg humidity

Prince William County Weather August

Move between months or click on a day
July
September
Mon.Tue.Wed.Thu.Fri.Sat.Sun.
1
Light rain shower
24°
2
Cloudy
26°
3
Overcast
26°
4
Sunny
31°
5
Overcast
24°
6
Overcast
26°
7
Overcast
22°
8
Mist
28°
9
Partly cloudy
29°
10
Sunny
30°
11
Partly cloudy
30°
12
Fog
33°
13
Mist
31°
14
Moderate or heavy rain shower
30°
15
Patchy light rain with thunder
29°
16
Fog
31°
17
Sunny
36°
18
Overcast
26°
19
Light rain
25°
20
Mist
30°
21
Overcast
25°
22
Cloudy
29°
23
Mist
29°
24
Cloudy
28°
25
Mist
28°
26
Cloudy
25°
27
Partly cloudy
24°
28
Partly cloudy
26°
29
Cloudy
25°
30
Cloudy
25°
31
Overcast
23°

Temperatures trend during August in Prince William County

See the weather trend as well as the moving average line

August weather in Prince William County day by day

Click on a date for more information
July September
Date Weather Temperatures Rain UV More
Aug. 1 Light rain shower
Light rain shower
 24° /18° 23.2 mm 2
Aug. 2 Cloudy
Cloudy
 26° /17° 0 mm 11
Aug. 3 Overcast
Overcast
 26° /19° 0 mm 11
Aug. 4 Sunny
Sunny
 31° /17° 0 mm 11
Aug. 5 Overcast
Overcast
 24° /19° 0 mm 5
Aug. 6 Overcast
Overcast
 26° /20° 0 mm 5
Aug. 7 Overcast
Overcast
 22° /19° 0 mm 5
Aug. 8 Mist
Mist
 28° /19° 0 mm 11
Aug. 9 Partly cloudy
Partly cloudy
 29° /20° 0 mm 11
Aug. 10 Sunny
Sunny
 30° /17° 0 mm 11
Aug. 11 Partly cloudy
Partly cloudy
 30° /16° 0 mm 11
Aug. 12 Fog
Fog
 33° /21° 0 mm 11
Aug. 13 Mist
Mist
 31° /23° 0 mm 7
Aug. 14 Moderate or heavy rain shower
Moderate or heavy rain shower
 30° /23° 5.2 mm 7
Aug. 15 Patchy light rain with thunder
Patchy light rain with thunder
 29° /24° 12.7 mm 9
Aug. 16 Fog
Fog
 31° /22° 0 mm 9
Aug. 17 Sunny
Sunny
 36° /22° 0 mm 11
Aug. 18 Overcast
Overcast
 26° /18° 0.1 mm 2
Aug. 19 Light rain
Light rain
 25° /18° 4 mm 2
Aug. 20 Mist
Mist
 30° /19° 0 mm 5
Aug. 21 Overcast
Overcast
 25° /19° 0 mm 2
Aug. 22 Cloudy
Cloudy
 29° /19° 0 mm 10
Aug. 23 Mist
Mist
 29° /15° 0 mm 10
Aug. 24 Cloudy
Cloudy
 28° /19° 0.1 mm 9
Aug. 25 Mist
Mist
 28° /21° 0 mm 10
Aug. 26 Cloudy
Cloudy
 25° /15° 0 mm 10
Aug. 27 Partly cloudy
Partly cloudy
 24° /14° 0 mm 9
Aug. 28 Partly cloudy
Partly cloudy
 26° /15° 0 mm 9
Aug. 29 Cloudy
Cloudy
 25° /15° 0 mm 9
Aug. 30 Cloudy
Cloudy
 25° /14° 0 mm 9
Aug. 31 Overcast
Overcast
 23° /16° 0 mm 5
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Important Notice
Our weather forecast for Prince William County in August is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Prince William County forecast closer to your planned date for the most up-to-date weather information.
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Prince William County in August - FAQ

What are the expected maximum and minimum temperatures in Prince William County during August?

During August, expect a variety of temperatures with highs around 28° and lows near 19°, suitable for diverse activities and preferences.

How much rainfall should be expected in Prince William County during August?

In August, Prince William County can expect light to moderate rainfall, totaling 45.3 mm across approximately 4 days. Occasional showers are possible, and planning ahead for them could be helpful.

What are the typical wind conditions in Prince William County during August?

The average wind speed in Prince William County during August is 12 km/h, suggesting breezy to windy conditions, depending on your activities.

August rainfall patterns in Prince William County

Explore the daily rainfall trends and prepare for Prince William Countys August weather 💧
Typically, Prince William County has 4 rainy days in August with a total of 45.3 mm of rainfall.

UV exposure in Prince William County during August

Stay informed about UV levels for safe outdoor activities throughout the month of August ☀️
Top locations in Prince William County
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Haymarket
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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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