Grindstone Weather Forecast
- 37
- 53
Rain Showers
- 35
- 40
Mostly Cloudy
- 37
- 52
Partly Sunny
- 36
- 50
Rain/Freezing Rain
- 27
- 50
Rain Showers
- 19
- 37
Slight Chance Snow Showers
- 28
- 41
Snow Showers Likely
Today 7 Mar Jefferson
Partly sunny Early, then becoming mostly cloudy. A chance of Showers Early, then Showers late. Locally heavy rainfall possible late. Breezy, mild with Highs Ranging from the mid 50s along the lake Ontario shore to the upper 50s inland. South Winds 10 to 20 Mph with Gusts up to 30 Mph. Chance of rain 90 percent.
Tonight 7 Mar Jefferson
Showers Early, then Showers likely through the early overnight. Some patchy fog developing from late evening on. Locally heavy rainfall possible early. Breezy with Lows in the mid 30s. Southwest Winds 10 to 15 Mph with Gusts up to 30 Mph, becoming west. Chance of rain near 100 percent.
Grindstone Temperature Statistics
March Temperature
Watertown, Watertown International Airport (20.5 miles)
Lowest 2 March, 2026
-2.9 °FAverage March
24.3 °FHighest 3 March, 2026
39.9 °F
Climate (2021–Present)
Watertown, Watertown International Airport (20.5 miles)
Average Low 2021–2026
38.5 °FAverage 2021–2026
48.4 °FAverage High 2021–2026
57.6 °F