Fall · September 8, 2026

London, Ontario

Great Lakes & St. Lawrence Lowlands·Hardiness zone 6a

Right now

25°C / 78°F

Overcast · wind 12 km/h · 47% RH

Soil (6 cm)

19°C / 66°F

Warm-season seeds go

Hardiness zone

6a

est. from 10-yr extreme low -21°C

Frost window

May 3 – Oct 26

~176 frost-free days · first frost in ~48 days

Sun

06:57 – 19:47

sunrise – sunset today

Moon

Waning Crescent

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

7-day forecast

America/Toronto

Tue

Overcast

26° / 12°

dry

Wed

Rain

25° / 18°

3.33 mm

Thu

Overcast

23° / 12°

dry

Fri

Clear

22° / 8°

dry

Sat

Overcast

25° / 11°

dry

Sun

Drizzle

28° / 16°

2.7 mm

Mon

Drizzle

24° / 14°

1.8 mm

Your ecological region

Great Lakes & St. Lawrence Lowlands

The mixed hardwood heartland of Ontario, Quebec, the Great Lakes states and northern New England. Four real seasons and rich soils.

Regional guide →

Your hardiness zone

Zone 6a

Estimated from a 10-year average extreme low of -21°C. What grows, what bites and what to forage across your zone.

Zone guide →

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