Valley Forge National Historical Park, PA
Today’s Forecast:
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Today’s Report:
Hiking
Excellent for hiking. High near 78°F. Low rain risk (2%).
- Temp: Marginal weather factor
- Rain: Favorable conditions
- Wind: Favorable conditions
- Thunderstorm: Favorable conditions
Biking
Excellent for biking. High near 78°F. Low rain risk (2%).
- Temp: Favorable conditions
- Rain: Favorable conditions
- Wind: Favorable conditions
- Thunderstorm: Favorable conditions
Outdoor Events / Activities
Excellent for outdoor events / activities. High near 78°F. Low rain risk (2%).
- Temp: Favorable conditions
- Rain: Favorable conditions
- Wind: Favorable conditions
- Thunderstorm: Favorable conditions
About Valley Forge National Historical Park
At Valley Forge National Historical Park, decisions often turn on open-field wind, heat, trail conditions, events, creek flooding, snow, and ice. The safest and most enjoyable version of the day may change after recent rain or a shift in wind.
Planning an Outing at Valley Forge National Historical Park
Confirm parking, seasonal gates, water or trail conditions, and daylight before departure. Avoid assuming that every access around Valley Forge National Historical Park will have identical conditions.
Weather Tips
- Watch radar for thunderstorms and leave open water, overlooks, ridges, or waterfalls before lightning arrives.
- Check the latest destination notice and conditions near Schuylkill River Trail shortly before departure.
Nearby Towns and Areas
Use this forecast as practical context for outdoor plans near:
- King of Prussia
- Phoenixville
- Schuylkill River Trail
- Valley Creek
- Mount Misery
- Mount Joy
- Chester Valley Trail
Adjust the Day to the Forecast
Choose the route, launch, campsite, fishing window, lift plan, or event time with the widest safety margin.
7-Day Forecast for Valley Forge National Historical Park
Weather by Season
Winter
Snow cover varies with elevation and exposure, while shaded gorge and waterfall routes can hold ice for days. Use destination-specific winter reports. Verify local conditions near King of Prussia before leaving.
Spring
Spring storms raise creeks quickly and can scatter debris across riverside trails. Check upstream rain and current access. Verify local conditions near Phoenixville before leaving.
Summer
Start steep or exposed travel early and carry enough water. Downpours can turn waterfall steps and creek crossings dangerous quickly. Verify local conditions near Schuylkill River Trail before leaving.
Fall
Peak-color weekends fill parking early. Carry layers and expect wet leaves or frost on shaded trails. Verify local conditions near Valley Creek before leaving.
Key Climate Data Points
- Annual average temperature: roughly 48–55°F, with cooler conditions on ridges and warmer readings in lower valleys.
- Annual snowfall: commonly 20–45 inches, with substantially more on nearby ridges.
- Warmest months: July is generally warmest, with cooler conditions near large water and on high ridges.
- Coolest months: January is usually coolest; wind and freezing rain often amplify travel impacts.
- Wettest season: Late spring and summer commonly bring the heaviest showers and thunderstorms.
- Driest season: Early fall often has comparatively settled periods, although precipitation occurs year-round.
- Best outdoor window: Late spring through fall for most warm recreation; winter destinations depend on verified snow, ice, and operations.