Riverside (Merrimack River) Weather Forecast

    • 46
    • 63

    Partly Sunny

    • 44
    • 62

    Mostly Sunny

    • 46
    • 63

    Slight Chance Rain Showers

    • 52
    • 65

    Rain Showers Likely

    • 52
    • 63

    Rain Showers Likely

    • 50
    • 62

    Chance Rain Showers

    • 50
    • 62

    Slight Chance Rain Showers

Today 22 Sep Western Essex

Mostly sunny. Highs in the upper 60s.

Tonight 22 Sep Western Essex

Partly cloudy. Lows in the mid 40s. Northeast Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Riverside (Merrimack River) Temperature Statistics

September Temperature

Lawrence Municipal Airport (5.6 miles)

  • Lowest 15 September, 2026

    46 °F

  • Average September

    65.1 °F

  • Highest 10 September, 2026

    86 °F

Climate (2021–2026)

Lawrence Municipal Airport (5.6 miles)

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  • Average Low 2021–2026

    42.8 °F

  • Average 2021–2026

    51.9 °F

  • Average High 2021–2026

    60.8 °F
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