Shirley Weather Forecast

    • 28
    • 44

    Mostly Cloudy

    • 39
    • 55

    Rain Likely

    • 35
    • 56

    Chance Rain

    • 30
    • 55

    Chance Rain

    • 21
    • 42

    Partly Sunny

    • 24
    • 41

    Mostly Cloudy

Today 19 Mar Northwest Middlesex County

Partly sunny. Highs in the lower 40s. South Winds around 5 Mph.

Tonight 19 Mar Northwest Middlesex County

Mostly cloudy. Lows in the upper 20s. Southwest Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Shirley Temperature Statistics

March Temperature

Fitchburg, Fitchburg Municipal Airport (5 miles)

  • Lowest 3 March, 2026

    6.1 °F

  • Average March

    37.1 °F

  • Highest 10 March, 2026

    73 °F

Climate (2021–Present)

Fitchburg, Fitchburg Municipal Airport (5 miles)

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  • Average Low 2021–2026

    41.5 °F

  • Average 2021–2026

    51.6 °F

  • Average High 2021–2026

    61.6 °F
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