TickZoneHow the score works
63of 100

Today's tick risk

Petersham, MA

Worcester County

Moderate risk

Ticks are active. Use repellent, stick to trails, and do a tick check when you come inside.

Updated June 30, 2026

Right now
69°F · 86%
Life stage
Nymphs
Sightings
2 · 15mi

7-day outlook

Risk recalculates daily from the local forecast.

Today
63
Wed
57
Thu
58
Fri
50
Sat
57
Sun
68
Mon
68

What's active right now

Nymphs are questing, the highest-risk stage for people. Nymphal deer ticks peak in late spring and summer. They're the size of a poppy seed, easy to miss, and cause most Lyme transmission.

Recent tick sightings

Within ~15 mi · last 30 days

2
observations logged nearby (iNaturalist)
  • Ixodes scapularisJun 8
  • Dermacentor variabilisJun 7

Local tick habitat

Petersham is 94% natural land cover (71% forest, plus open and brushy areas) across its 54.23 sq mi. Deer ticks live in wooded areas, along trail edges, and in tall grass. The more of that a town has, the more places ticks can quest.

Is it tick season in Petersham right now?

Yes. Nymphs are questing, the highest-risk stage for people. In Petersham, today's risk reads moderate (63/100). Ticks are active. Use repellent, stick to trails, and do a tick check when you come inside.

Nearby towns in Worcester County

Tick risk is local. Check the towns around you.

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