Fall · September 8, 2026

Boston, Massachusetts

Northeast Atlantic Coast & Piedmont·Hardiness zone 6b

Right now

21°C / 70°F

Overcast · wind 12 km/h · 67% RH

Soil (6 cm)

21°C / 69°F

Warm-season seeds go

Hardiness zone

6b

est. from 10-yr extreme low -20°C

Frost window

Apr 19 – Nov 2

~197 frost-free days · first frost in ~55 days

Sun

06:17 – 19:06

sunrise – sunset today

Moon

Waning Crescent

10% lit · solunar good · full 2026-09-26

7-day forecast

America/New_York

Tue

Overcast

27° / 15°

dry

Wed

Overcast

28° / 15°

dry

Thu

Overcast

31° / 21°

dry

Fri

Overcast

23° / 16°

dry

Sat

Overcast

21° / 13°

dry

Sun

Overcast

23° / 15°

dry

Mon

Overcast

27° / 18°

dry

Your ecological region

Northeast Atlantic Coast & Piedmont

The urban Atlantic seaboard from Boston to Richmond: oak-hickory forests, estuaries and a long, humid growing season.

Regional guide →

Your hardiness zone

Zone 6b

Estimated from a 10-year average extreme low of -20°C. What grows, what bites and what to forage across your zone.

Zone guide →

Get this guide for Boston every week

Frost warnings, what's biting, what's ripening. One email, Sunday evening.