Prince William Forest Park in July
July at Prince William Forest Park averages a daytime high near 88°F and an overnight low around 71°F, with about 4.6" of precipitation. Visitation runs about 1.3× the park's average month, which makes July a busy month here.
- Average low
- 71°F
- Average high
- 88°F
Range across the year: 28°F to 88°F
- Precipitation
- 4.6 in
- Daylight
- 14.4 hours
Roughly 11% of the park's yearly visitors come in July: about 37,000 recreation visits in a typical year, based on National Park Service monthly counts from 1979 to 2025.
It is the single busiest month of the year at Prince William Forest; January, the quietest, runs only about 0.6× the average — a 2-to-1 swing between high and low season.
On our Best Time to Visit score July rates 31/100 ("Poor"). Our recommended month is April: pleasant weather with noticeably thinner crowds (shoulder season).
The daily average of about 79°F is warm enough that midday heat is worth planning around. These figures are 1991–2020 NOAA climate normals from the nearest station, about 7.3 miles from the park.
July falls inside the park's busiest stretch: June, July and August together pull about 32% of the year's visitors, so a visit this month means sharing the park with the peak-season crowd.
You'll have about 14.4 hours of daylight in July to explore — near the year-round maximum.
Park-wide, 2025 drew 339,015 recreation visits, down 4.6% from 355,196 in 2024.
How July compares with the months around it
| Month | Avg high / low | Crowds | Best-time score |
|---|---|---|---|
| June | 84°F / 66°F | 1.3× Busy | 49 Fair |
| July | 88°F / 71°F | 1.3× Busy | 31 Poor |
| August | 86°F / 69°F | 1.2× Busy | 44 Poor |
All twelve months at Prince William Forest, with the best time to visit.
Things to do at Prince William Forest in July
The National Park Service tags 7 Prince William Forest activities for summer. Each links to the park's own page for it.
- Become a B.A.R.K. Ranger at Prince William Forest Park · 10-120 minutes
- Bike the Potomac Heritage National Scenic Trail in Prince William Forest Park · 1-3 hours
- Biking in Prince William
- Chopawamsic Backcountry · 1-14 days · reservation required
- Hike to the Taylor Farm Site · 30-120 minutes
- Orienteering In Prince William
- Prince William Forest Park Junior Ranger · 20-60 minutes
Frequently Asked Questions
July averages a daytime high near 88°F and an overnight low around 71°F at Prince William Forest Park, with about 4.6 inches of precipitation. These are 1991–2020 NOAA climate normals from the nearest station, about 7.3 miles from the park, so conditions inside the park can differ, especially at other elevations.
July is busy at Prince William Forest Park (about 1.3× the average month). Our best-time score rates it "Poor" at 31/100. Our recommended month is April.
The busiest month is July and the quietest is January. July sits at about 1.3× the park's average, or 11% of annual visitation.
A typical July sees about 37,000 recreation visits at Prince William Forest Park, based on National Park Service monthly counts from 1979–2025.
Where to stay near Prince William Forest in July
Booking a July trip to Prince William Forest Park? Compare hotels, cabins and vacation rentals near the park with live July availability and prices.
Top-rated places to stay near Prince William Forest
Prices for Oct 30–Nov 1, 4 adults. Change dates on the map below.
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See the full ranking of the best national parks to visit in July.
Source: National Park Service Visitor Use Statistics (1979–2025), NOAA NCEI Climate Normals 1991–2020. Updated 2026-10-11.