Lieutenant Island Weather Forecast

    • 39
    • 49

    Increasing Clouds

    • 42
    • 47

    Cloudy

    • 31
    • 49

    Chance Rain

    • 36
    • 41

    Chance Rain

    • 33
    • 43

    Mostly Cloudy

    • 38
    • 46

    Rain Likely

Today 10 Mar Barnstable

Partly sunny. Patchy fog in the morning. Highs in the lower 50s. Southwest Winds 5 to 10 Mph.

Tonight 10 Mar Barnstable

Mostly cloudy. Patchy fog. Visibility one quarter mile or less at Times. Near steady temperature in the lower 40s. Southwest Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lieutenant Island Temperature Statistics

March Temperature

Chatham, Chatham Municipal Airport (14.3 miles)

  • Lowest 3 March, 2026

    15.1 °F

  • Average March

    34 °F

  • Highest 4 March, 2026

    45 °F

Climate (2021–Present)

Chatham, Chatham Municipal Airport (14.3 miles)

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  • Average Low 2021–2026

    47.5 °F

  • Average 2021–2026

    53.8 °F

  • Average High 2021–2026

    59.9 °F
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