Ontario

Mild Summer Week Ahead for Guelph After Last Week’s Heat Wave

By

boringnews
July 6, 2026 4:07 pm

Guelph, Ontario, is in for a seasonably warm and mostly sunny week, a welcome change after a heat wave blanketed the region just days ago. Environment Canada‘s forecast shows daytime highs will hover between 25 and 28 degrees Celsius through Sunday, with comfortable overnight lows near seasonal norms.

As of 2 p.m. Monday, the Guelph Turfgrass Institute weather station recorded a temperature of 25.6 degrees and humidity at 51 per cent, with no weather alerts in effect. That is a sharp contrast to the Canada Day week, when an orange-level heat warning was issued and temperatures soared to 34-36 degrees, with humidex values hitting 40-42.

Monday’s high is expected to reach 27 degrees, though humidity will make it feel closer to 32. Tuesday will be the warmest day of the week, with a high of 28 and a humidex of 34. Wednesday stays sunny at 28 degrees before a shift in the weather pattern brings a 40 per cent chance of showers Thursday and a 30 per cent chance Friday. Saturday is looking sunny with a high of 26 degrees, and Sunday will see a mix of sun and cloud with a high of 26.

The UV index is forecast to be very high at 9 on Monday and Tuesday. Residents spending time outdoors should wear sunscreen with at least SPF 30, seek shade, and limit direct sun exposure between 11 a.m. and 3 p.m., according to sun safety guidelines.

This week’s temperatures are right around the July average for Guelph, which normally sees highs near 26 degrees and lows around 14. Environment Canada does not expect any weather alerts over the next several days.

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