Grindstone Weather Forecast
- 29
- 32
Mostly Cloudy
- 27
- 36
Rain/Snow
- 22
- 29
Mostly Cloudy
- 26
- 34
Cloudy
- 21
- 34
Rain/Snow Likely
- 23
- 32
Snow Showers Likely
Today 22 Dec Jefferson
Snow through early Afternoon, then a chance of snow Showers late. Additional accumulation an inch or less. Highs Ranging from the lower 30s inland to the mid 30s along the lake Ontario shore. Light Winds, becoming southwest 5 to 10 Mph. Chance of snow 90 percent.
Tonight 22 Dec Jefferson
Snow likely. Additional accumulation Ranging from an inch or less across the lower Elevations to around 2 Inches on the tug hill. Lows in the upper 20s. Light southwest Winds. Chance of snow 70 percent.
Grindstone Temperature Statistics
December Temperature
Watertown, Watertown International Airport (20.5 miles)
Lowest 5 December, 2025
-6 °FAverage December
25.4 °FHighest 19 December, 2025
55 °F
Climate (2020–Present)
Watertown, Watertown International Airport (20.5 miles)
Average Low 2020–2025
38.8 °FAverage 2020–2025
48.6 °FAverage High 2020–2025
57.6 °F