Summers on the parkway are generally hot and humid, with daytime highs frequently above 90 degrees Fahrenheit and scattered afternoon thunderstorms. Please carry water while participating in physical activity and be prepared to take shelter from lightning. Winters on the parkway are generally cold, with nighttime lows frequently near freezing and occasional snowfall. Please be alert for snowplows and icy spots on roadways. Weather during spring and fall is generally moderate, but can change quickly.
Great Falls Park, VA - $10.00
Great Falls Park Vehicle Permit ($10) Admits one single, private, non-commercial vehicle and all its passengers. Organized groups are not eligible for the vehicle permit. Is NOT valid for entrance into the C &O Canal National Historic Park. Great Falls Park Individual Permit ($5) Admits one individual when entering by foot, bicycle, or equestrian. Individuals 15 years old and younger are admitted free of charge. Is NOT valid for entrance into the C &O Canal National Historic Park