Today's tick risk
Chelsea, MA
Suffolk County
Low risk
Tick activity is low right now, but never zero. A quick check after time outdoors is still worth it.
Updated June 30, 2026
- Right now
- 72°F · 86%
- Life stage
- Nymphs
- Sightings
- 20 · 15mi
7-day outlook
Risk recalculates daily from the local forecast.
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
- Ixodes scapularisJun 25
- Dermacentor variabilisJun 25
- Dermacentor variabilisJun 22
- Dermacentor variabilisJun 21
- Dermacentor variabilisJun 20
- Dermacentor variabilisJun 13
Local tick habitat
Chelsea is 1% natural land cover (0% forest, plus open and brushy areas) across its 2.22 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 Chelsea right now?
Yes. Nymphs are questing, the highest-risk stage for people. In Chelsea, today's risk reads low (19/100). Tick activity is low right now, but never zero. A quick check after time outdoors is still worth it.
Nearby towns in Suffolk County
Tick risk is local. Check the towns around you.
Get Chelsea's tick risk on your home screen
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