Niagara Falls, Ontario Weather

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By Jessica Morin, Business & Economy EditorReviewed by Andrew LeblancForecast data: Open-Meteo & Environment and Climate Change Canada

Live forecasts update automatically; written guidance last reviewed 16 June 2026 by the Canada Scope Weather Desk. Data from Environment and Climate Change Canada and other national met services via Open-Meteo.

As shown in the live forecast above, Niagara Falls, Ontario, experiences a humid continental climate with four distinct seasons, meaning you should expect warm, humid summers and cold, snowy winters, with spring and autumn offering mild transitional weather.

What is the typical weather pattern for Niagara Falls?

Niagara Falls sits in a region where lake-effect snow from Lake Erie and Lake Ontario can significantly amplify winter snowfall, particularly from November to January. Summers are generally warm, with July highs averaging around 27°C, though humidity can make it feel hotter. Spring and autumn are shorter seasons, often marked by rapid temperature shifts and occasional frost risks into late April or early May.

How does the Niagara River affect local conditions?

The Niagara River and the falls themselves create a localized microclimate, especially near the gorge. Mist from the falls keeps immediate areas cooler in summer and can lead to icy conditions on walkways in winter. This moisture also contributes to fog, which is most common in the early morning during the cooler months.

Average January low-8°C

Average July high27°C

Annual snowfallapprox. 130 cm

Peak precipitation monthJune

Does Niagara Falls ever freeze completely?

No, the volume of water flowing over the falls prevents a complete freeze. However, ice from the upper river and mist freezing on surrounding structures creates dramatic ice formations, most commonly in January and February.

When is the best time to visit for mild weather?

Late May to early June and the month of September offer the most comfortable conditions—low humidity, moderate temperatures (15–22°C), and lower chances of rain or snow compared to peak summer or winter.

Is fog common at the falls?

Yes, especially in the morning during spring and autumn when the relatively warm water meets cooler air. Fog typically clears by late morning as air temperatures rise.