10-Day Weather Forecast - St Thomas, Ontario, CA

Mostly cloudy. High temperature around 20F. Dew point will be around 11F with an average humidity of 75%. Winds will be 10 mph from the SW.

Cloudy with likely rain-snow mix. Chance of precipitation 85%. Low temperature around 17F. Dew point will be around 13F with an average humidity of 84%. Winds will be 9 mph from the SW.

Mostly cloudy with a chance of snow. Chance of precipitation 40%. High temperature around 19F. Dew point will be around 12F with an average humidity of 77%. Winds will be 15 mph from the W.

Partly cloudy. Low temperature around 4F. Dew point will be around 1F with an average humidity of 74%. Winds will be 13 mph from the W.

Partly cloudy. High temperature around 12F. Dew point will be around 2F with an average humidity of 72%. Winds will be 13 mph from the W.

Mostly cloudy with a slight chance of snow. Chance of precipitation 30%. Low temperature around 8F. Dew point will be around 6F with an average humidity of 80%. Winds will be 9 mph from the SW.

Mostly cloudy with likely rain-snow mix. Chance of precipitation 85%. High temperature around 29F. Dew point will be around 20F with an average humidity of 84%. Winds will be 14 mph from the SW.

Mostly cloudy with probable snow. Chance of precipitation 70%. Low temperature around 18F. Dew point will be around 18F with an average humidity of 82%. Winds will be 12 mph from the SW.

Mostly cloudy with a chance of snow. Chance of precipitation 35%. High temperature around 19F. Dew point will be around 11F with an average humidity of 75%. Winds will be 12 mph from the W.

Mostly cloudy with a slight chance of snow. Chance of precipitation 25%. Low temperature around 8F. Dew point will be around 3F with an average humidity of 70%. Winds will be 8 mph from the W.

Mostly cloudy with a slight chance of snow. Chance of precipitation 25%. High temperature around 20F. Dew point will be around 8F with an average humidity of 69%. Winds will be 8 mph from the W.

Mostly cloudy. Low temperature around 12F. Dew point will be around 8F with an average humidity of 74%. Winds will be 5 mph from the NW.

Cloudy. High temperature around 16F. Dew point will be around 8F with an average humidity of 78%. Winds will be 7 mph from the NE.

Cloudy. Low temperature around 3F. Dew point will be around 1F with an average humidity of 77%. Winds will be 8 mph from the NE.

Cloudy. High temperature around 7F. Dew point will be around -1F with an average humidity of 77%. Winds will be 6 mph from the N.

Cloudy with a chance of snow. Chance of precipitation 40%. Low temperature around 2F. Dew point will be around -2F with an average humidity of 79%. Winds will be 5 mph from the NW.

Cloudy. High temperature around 11F. Dew point will be around 2F with an average humidity of 79%. Winds will be 8 mph from the W.

Cloudy. Low temperature around 6F. Dew point will be around 3F with an average humidity of 80%. Winds will be 6 mph from the W.