Ayer Weather Forecast

    • 58
    • 80

    Becoming Sunny

    • 57
    • 78

    Mostly Sunny

    • 55
    • 80

    Chance Thunderstorms

    • 57
    • 78

    Rain Showers Likely

    • 58
    • 79

    Slight Chance Rain Showers

    • 58
    • 83

    Partly Sunny

Today 19 Jun Northwest Middlesex County

Mostly sunny. Highs in the lower 80s. West Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 19 Jun Northwest Middlesex County

Mostly clear. Lows in the mid 60s. West Winds 10 to 15 Mph.

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Ayer Temperature Statistics

June Temperature

Fitchburg, Fitchburg Municipal Airport (8.1 miles)

  • Lowest 1 June, 2026

    43 °F

  • Average June

    71.4 °F

  • Highest 11 June, 2026

    93 °F

Climate (2021–2026)

Fitchburg, Fitchburg Municipal Airport (8.1 miles)

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  • Average Low 2021–2026

    41.4 °F

  • Average 2021–2026

    51.5 °F

  • Average High 2021–2026

    61.5 °F
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