Grindstone Weather Forecast

    • 38
    • 47

    Rain Showers

    • 37
    • 48

    Partly Sunny

    • 41
    • 49

    Chance Rain Showers

    • 43
    • 54

    Chance Rain Showers

    • 40
    • 56

    Chance Rain Showers

    • 38
    • 53

    Partly Sunny

Today 6 May Jefferson

Showers through early afternoon. Cool with Highs Ranging from the mid 40s on the tug hill to around 50 across the lower Elevations. North Winds 5 to 10 Mph, becoming light. Chance of rain near 100 percent.

Tonight 6 May Jefferson

Mostly cloudy in the Evening, then becoming partly cloudy. Lows Ranging from the lower 30s on the tug hill to the upper 30s across the lower Elevations. Light west Winds.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Grindstone Temperature Statistics

May Temperature

Watertown, Watertown International Airport (20.5 miles)

  • Lowest 1 May, 2026

    29.6 °F

  • Average May

    46.3 °F

  • Highest 4 May, 2026

    69.1 °F

Climate (2021–Present)

Watertown, Watertown International Airport (20.5 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    38.4 °F

  • Average 2021–2026

    48.3 °F

  • Average High 2021–2026

    57.6 °F
Get WillyWeather+ to remove ads