Orillia Weather Brings Showers and Cooler Days Ahead

Orillia is facing a wet and unsettled weather pattern on October 13, 2026, with showers, possible thunderstorms, and changing winds affecting the area as residents move through the day, according to orilliamatters.com. The forecast includes rainfall totals, temperature shifts, and continued unsettled conditions later in the week. Showers are expected to end near noon before cloudy skies remain, with a 60 percent chance of showers and a risk of thunderstorms, according to orilliamatters.com.

The forecast lists local rainfall amounts of 20 to 30 mm, south winds at 20 km/h becoming light late in the morning, and a high of 18 C. Fog patches are expected to dissipate early, while the ultraviolet index is forecast at 3, considered moderate, according to orilliamatters.com. Conditions tonight are expected to stay cloudy with a 60 percent chance of showers or drizzle and a risk of an early evening thunderstorm.

Winds are forecast to shift northwest at 30 km/h with gusts reaching 50 km/h this evening, while the overnight low is expected to reach 12 C, according to orilliamatters.com. The Wednesday forecast calls for cloudy conditions, a 40 percent chance of morning showers or drizzle, and a high of 13 C.

The forecast outlook from orilliamatters.com shows continued cool conditions after Wednesday. Thursday is expected to bring a mix of sun and cloud with a high of 11 C, followed by periods of rain Thursday night with a low of 8 C. Rain is expected to continue at times Friday, with windy conditions and a high of 13 C, according to orilliamatters.com. Friday night is forecast to remain cloudy with a 60 percent chance of rain showers or flurries and a low of plus 1 C.

The weekend outlook includes a mix of sun and cloud Saturday with a 30 percent chance of rain showers or flurries and a high of 7 C, according to orilliamatters.com. Saturday night is expected to have cloudy periods with a 30 percent chance of showers and a low of minus 1 C.