South Mountain County Park Weather Forecast

    • 69
    • 92

    Mostly Sunny

    • 73
    • 95

    Slight Chance Thunderstorms

    • 54
    • 91

    Rain Showers

    • 50
    • 69

    Mostly Cloudy

    • 50
    • 67

    Rain Showers Likely

    • 53
    • 65

    Rain Showers Likely

Today 18 May Rockland

Sunny. Highs in the lower 90s. Southeast Winds 5 to 10 Mph with Gusts up to 20 Mph.

Tonight 18 May Rockland

Mostly clear. Lows around 70. South Winds 5 to 10 Mph. Gusts up to 20 Mph in the evening.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

South Mountain County Park Temperature Statistics

May Temperature

White Plains - Westchester County Airport (18.6 miles)

  • Lowest 12 May, 2026

    41 °F

  • Average May

    55.6 °F

  • Highest 5 May, 2026

    75.9 °F

Climate (2021–Present)

White Plains - Westchester County Airport (18.6 miles)

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

  • Average Low 2021–2026

    45.8 °F

  • Average 2021–2026

    54 °F

  • Average High 2021–2026

    62.2 °F
Get WillyWeather+ to remove ads