Summerside is seeing mild August weather this week, with temperatures near seasonal norms and a chance of light showers, according to The Weather Network.
On Monday, August 17, 2026, the city is experiencing mostly cloudy skies with a temperature of 20°C, feeling like 22°C. The daytime high is expected to reach 21°C, with an overnight low of 18°C. Humidity sits at 70 percent, with south winds at 23 km/h.
There is a 40 percent chance of precipitation, mainly in the early evening, with about 1 mm of rain possible. No weather alerts are in effect for the area.
The forecast aligns with historical averages for Summerside in August, which typically see highs of 23°C and lows of 14°C. Sunrise is at 6:16 a.m. and sunset at 8:22 p.m., offering roughly 14 hours of daylight. The UV index is moderate.
Atlantic Canada has been experiencing warmer-than-normal conditions through the first half of August, and temperatures are expected to remain above seasonal for the month overall, even as they moderate slightly in the second half, according to The Weather Network’s August outlook.
Residents and visitors can check current conditions on the Summerside weather page.
