Bug Bite Forecast: Pennsylvania — Week of June 29, 2026

Mosquitoes will be active near the city’s rivers and in shaded park areas, especially as evening approaches

Expect high activity from mosquitoes and biting midges along the Lake Erie waterfront and in nearby marshy areas

Ticks pose a moderate risk on wooded trails, while mosquitoes will be active in lower elevation residential areas

Mosquitoes will be active in residential backyards and shaded garden spaces, with some gnats present

Mosquitoes will be very active near the Lehigh River and in the lush, shaded areas of Lehigh Parkway, making outdoor activities quite bothersome

Expect a moderate presence of mosquitoes around the Schuylkill River trails and biting flies near Mt. Penn’s forested paths, especially in the late afternoon

The warm, humid conditions will lead to high mosquito activity in Nay Aug Park and along the Lackawanna River, where stagnant water may be present

Mosquitoes will be very active near the Susquehanna River and in city parks, especially during evening strolls

Expect an increase in mosquito activity along the Codorus Creek and biting flies in surrounding agricultural areas, particularly at dusk

Enjoying local parks and trails could expose you to mosquitoes in shaded areas and a moderate risk of ticks in taller grasses

Mosquitoes will thrive near the Conococheague Creek, and hikers venturing into nearby mountain

Expect high mosquito activity near the Schuylkill and Delaware rivers, especially in shaded park areas during the warm, humid evening. Ticks may also be present in grassy urban park fringes

Mosquitoes will be active around the Neshaminy Creek and residential backyards due to the warm, humid air. Take precautions during outdoor evening gatherings

With warm temperatures and broken clouds, mosquitoes and biting flies will be prevalent near agricultural fields and the Conestoga River. Ticks

The warm evening air and moderate humidity will encourage mosquito activity, particularly near shaded street trees and community gardens. Expect a moderate nuisance when spending time outdoors, especially at dusk

Mosquitoes will be highly active in the warm, humid conditions, especially along the waterfront and in shaded park areas. Biting midges may also be a nuisance near the river at dawn and dusk

With high temperatures and moderate humidity, mosquito populations will be thriving, particularly near the Schuylkill River and throughout Fairmount Park. Ticks also pose a risk in taller grasses

The warm, broken-cloud conditions are ideal for mosquito activity in residential areas and local parks. Be vigilant for ticks if venturing into wooded or overgrown areas, as they will be actively seeking hosts

Expect a high risk of mosquito bites in wooded backyard areas and local parks due to the warm, humid weather. Ticks will also be active in tall grass and brush

Mosquito activity will be moderate to high in this urban setting, especially near the Schuylkill River and any standing water. Keep an eye out during evening outdoor activities

Mosquitoes will be active in the warm, humid conditions, particularly in residential gardens and local green spaces. Plan for some nuisance if spending extended time outdoors

The warm and moderately humid conditions create an ideal breeding ground for mosquitoes, especially near the Schuylkill River and local parks. Ticks are also active in wooded and grassy areas

Warm temperatures and moderate humidity create prime conditions for mosquitoes around recreational areas and residential gardens. Ticks are also a significant concern in the surrounding fields and parklands

Mosquitoes will be quite active in the warm, humid air, especially in shaded residential areas and community green spaces. Take precautions if enjoying the evening outdoors

Due to the proximity to Wissahickon Valley Park and abundant green spaces, both mosquitoes and ticks will be highly active. Exercise caution when hiking or gardening in the warm, humid weather

With high temperatures and moderate humidity, mosquito and biting fly populations will be robust, especially near streams and agricultural fields. Ticks are also a significant concern in rural areas

Expect a high risk of mosquito bites in residential areas and parks during the warm, humid

Mosquitoes will be actively seeking hosts around Lititz Springs Park and shaded residential areas, particularly as the sun begins to set. Ticks pose a lower threat but could be present in taller grasses near Lititz Run

Expect noticeable mosquito activity in backyards and local green spaces due to the warm, humid air, especially during evening outdoor relaxation. Check for ticks after venturing into any larger, less-maintained park sections

Ticks, including deer and lone star varieties, are a significant concern in the extensive wooded and brushy areas; apply repellent and wear protective clothing for any trail activity. Mosquitoes will also be abundant near streams and deep forest canopies

Urban mosquitoes are active in this pleasant evening weather, especially within shaded garden spaces and around the mature trees of Clark Park. Outdoor diners and park-goers should be prepared for their presence

Mosquito activity is expected to be very high near the Delaware River and local creeks, exacerbated by the warm, humid conditions. Biting flies might also be present near the water, while ticks lurk in overgrown park perimeters

Mosquitoes will be active in suburban yards and community parks as evening approaches, making outdoor leisure less comfortable. A low risk of ticks exists in less manicured areas near Mill Creek