--- title: "10 Day Weather Forecast for Lancaster, Ontario, CA" description: "Get the latest 10 day weather forecast for Lancaster, Ontario, CA. Stay prepared with accurate and up-to-date weather information to plan your week ahead." location: "Lancaster, Ontario, CA" canonical: "https://www.weatherbug.com/weather-forecast/10-day-weather/lancaster-ontario-ca" coordinates: ["45.14179,-74.50346"] temperature_units: "°F" last_updated: "2026-05-29T18:14:00.0000000Z" source: "WeatherBug" --- # 10 Day Weather Forecast for Lancaster, Ontario, CA Get the latest 10-day weather forecast for Lancaster, Ontario, CA, including day and night conditions, high and low temperatures, wind speed and direction and precipitation chances. Forecast issued on 2026-05-29T18:14:00+00:00. ## 10 Day Weather Forecast | Date | Day Forecast | Night Forecast | High °F | Low °F | | ---------- | ------------------------------------------------ |------------------------------------------------| -------: | -------: | | Fri, May 29 | Mostly cloudy with likely rain. Chance of precipitation 95%. High temperature around 65F. Dew point will be around 46F with an average humidity of 65%. Winds will be 11 mph from the SW. | Mostly cloudy with likely rain. Chance of precipitation 100%. Low temperature around 47F. Dew point will be around 43F with an average humidity of 88%. Winds will be 17 mph from the NW. | 65°F | 47°F | | Sat, May 30 | Partly cloudy with probable rain. Chance of precipitation 75%. High temperature around 62F. Dew point will be around 39F with an average humidity of 64%. Winds will be 14 mph from the NE. | Mostly clear. Low temperature around 48F. Dew point will be around 40F with an average humidity of 61%. Winds will be 4 mph from the SW. | 62°F | 48°F | | Sun, May 31 | Cloudy with a chance of rain. Chance of precipitation 35%. High temperature around 65F. Dew point will be around 45F with an average humidity of 58%. Winds will be 9 mph from the W. | Partly cloudy with a chance of rain. Chance of precipitation 60%. Low temperature around 48F. Dew point will be around 46F with an average humidity of 74%. Winds will be 3 mph from the W. | 65°F | 48°F | | Mon, Jun 1 | Partly cloudy with a chance of rain. Chance of precipitation 60%. High temperature around 66F. Dew point will be around 45F with an average humidity of 61%. Winds will be 5 mph from the NE. | Partly cloudy with a chance of rain. Chance of precipitation 55%. Low temperature around 47F. Dew point will be around 45F with an average humidity of 73%. Winds will be 2 mph from the SW. | 66°F | 47°F | | Tue, Jun 2 | Partly cloudy with a slight chance of rain. Chance of precipitation 30%. High temperature around 68F. Dew point will be around 45F with an average humidity of 57%. Winds will be 5 mph from the N. | Mostly cloudy with a slight chance of rain. Chance of precipitation 25%. Low temperature around 49F. Dew point will be around 45F with an average humidity of 66%. Winds will be 3 mph from the N. | 68°F | 49°F | | Wed, Jun 3 | Partly cloudy. High temperature around 71F. Dew point will be around 45F with an average humidity of 54%. Winds will be 4 mph from the N. | Clear. Low temperature around 53F. Dew point will be around 47F with an average humidity of 64%. Winds will be 3 mph from the SW. | 71°F | 53°F | | Thu, Jun 4 | Mostly sunny with a slight chance of rain. Chance of precipitation 30%. High temperature around 76F. Dew point will be around 49F with an average humidity of 52%. Winds will be 6 mph from the W. | Mostly clear. Low temperature around 58F. Dew point will be around 49F with an average humidity of 60%. Winds will be 6 mph from the SW. | 76°F | 58°F | | Fri, Jun 5 | Partly cloudy. High temperature around 77F. Dew point will be around 54F with an average humidity of 58%. Winds will be 6 mph from the SW. | Partly cloudy with a chance of rain. Chance of precipitation 35%. Low temperature around 62F. Dew point will be around 55F with an average humidity of 68%. Winds will be 6 mph from the SW. | 77°F | 62°F | | Sat, Jun 6 | Mostly cloudy with a 45% chance for rain and thunderstorms. High temperature around 75F. Dew point will be around 57F with an average humidity of 64%. Winds will be 4 mph from the SW. | Partly cloudy with a 40% chance for rain and thunderstorms. Low temperature around 61F. Dew point will be around 55F with an average humidity of 71%. Winds will be 3 mph from the SW. | 75°F | 61°F | | Sun, Jun 7 | Cloudy with a chance of rain. Chance of precipitation 45%. High temperature around 72F. Dew point will be around 54F with an average humidity of 63%. Winds will be 3 mph from the NW. | Clear with a slight chance of rain. Chance of precipitation 30%. Low temperature around 58F. Dew point will be around 52F with an average humidity of 68%. Winds will be 2 mph from the SW. | 72°F | 58°F | ## Source Information - Source: "https://www.weatherbug.com/weather-forecast/10-day-weather/lancaster-ontario-ca" - Last Updated: "2026-05-29T18:14:00+00:00"