Waltham Weather Forecast

    • 57
    • 77

    Partly Sunny

    • 60
    • 74

    Rain

    • 59
    • 73

    Rain Likely

    • 55
    • 77

    Partly Sunny

    • 57
    • 80

    Mostly Sunny

    • 59
    • 82

    Mostly Sunny

    • 59
    • 81

    Partly Sunny

Today 20 Jul Interior Hancock

Sunny. Near steady temperature in the mid 70s. West Winds around 10 Mph with Gusts up to 25 Mph.

Tonight 20 Jul Interior Hancock

Mostly clear this Evening, then becoming partly cloudy. Lows in the upper 50s. Southwest Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Waltham Temperature Statistics

July Temperature

Bar Harbor, Hancock County-Bar Harbor Airport (17.4 miles)

  • Lowest 18 July, 2026

    51.1 °F

  • Average July

    70.4 °F

  • Highest 2 July, 2026

    93 °F

Climate (2021–2026)

Bar Harbor, Hancock County-Bar Harbor Airport (17.4 miles)

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  • Average Low 2021–2026

    38.3 °F

  • Average 2021–2026

    46.5 °F

  • Average High 2021–2026

    54.6 °F
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