Riverside (Merrimack River) Weather Forecast

    • 58
    • 79

    Becoming Sunny

    • 46
    • 77

    Sunny

    • 43
    • 68

    Sunny

    • 47
    • 70

    Mostly Sunny

    • 57
    • 76

    Mostly Sunny

    • 59
    • 84

    Partly Sunny

Today 18 Sep Western Essex

Mostly cloudy with a chance of Showers with patchy drizzle this Morning, then sunny this afternoon. Highs in the upper 70s. North Winds around 5 Mph, becoming west this afternoon. Chance of rain 30 percent.

Tonight 18 Sep Western Essex

Clear. Lows in the upper 50s. Southwest Winds around 5 Mph, becoming west after midnight.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Riverside (Merrimack River) Temperature Statistics

September Temperature

Lawrence Municipal Airport (5.6 miles)

  • Lowest 9 September, 2025

    48 °F

  • Average September

    63.9 °F

  • Highest 6 September, 2025

    84.9 °F

Climate (2020–Present)

Lawrence Municipal Airport (5.6 miles)

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

  • Average Low 2020–2025

    43.2 °F

  • Average 2020–2025

    52.2 °F

  • Average High 2020–2025

    61.2 °F
Get WillyWeather+ to remove ads