What is the long range weather forecast for Goderich, ON?

The Old Farmer's Almanac provides a 60-day extended weather forecast for Goderich, ON. This includes temperature trends, precipitation predictions, and seasonal weather patterns based on our traditional forecasting methods combined with modern meteorological science.

How accurate is the Almanac long range weather forecast?

The Old Farmer's Almanac claims an 80% accuracy rate for its long range forecasts. Our forecasting method uses a secret formula that considers sunspot activity, tidal action, and other factors along with current meteorological conditions.

For daily wit & wisdom, get the Almanac newsletter.

Long-Range Weather Forecast for Goderich, ON

Location Goderich, ON

60-Day Weather Forecast

July 2026 Long Range Weather Forecast for Southern Ontario
Dates	Weather Conditions
Jul 1-7	A few t-storms, then sunny; hot
Jul 8-12	Isolated t-storms, warm
Jul 13-15	T-storms east, sunny west; warm
Jul 16-25	Scattered t-storms, cool east; sunny, warm west
Jul 26-31	A few t-storms, warm
July	temperature 21°C (1°C below avg. east, 1°C above west) precipitation 95mm (70mm above avg. east, 40mm below west)

August 2026 Long Range Weather Forecast for Southern Ontario
Dates	Weather Conditions
Aug 1-9	T-storms, warm
Aug 10-16	Sunny; cool east, warm west
Aug 17-21	Isolated t-storms, warm
Aug 22-26	T-storms, warm
Aug 27-31	T-storms east, sunny west; cool
August	temperature 20°C (1°C below avg. east, 1°C above west) precipitation 125mm (70mm above avg. east, 20mm above west)

Map showing Old Farmer's Almanac long range weather region number 3

12-Month Long-Range Weather Outlook

November 2025 to October 2026

Winter will be colder and drier than normal in the east with below-normal snowfall, while it will be warmer than normal in the west with above-normal precipitation and snowfall. The coldest periods will be in mid- and late December, early and late January, and early February, with the snowiest periods in late November and early and mid-February. April and May will be cooler than normal, with above-normal precipitation in the north, below-normal south. Summer will be cooler than normal in the east and warmer west, with the hottest periods in late June and early July. Precipitation will be above normal. September and October will be cooler than normal, with above-normal precipitation.

See the complete 12-month weather forecast in The Old Farmer’s Almanac..

Weather Trend Graph

November 2025 to October 2026