Peterborough Weather Forecast

    • 53
    • 79

    Becoming Sunny

    • 38
    • 72

    Mostly Sunny

    • 36
    • 66

    Sunny

    • 43
    • 69

    Partly Sunny

    • 53
    • 73

    Mostly Sunny

    • 55
    • 79

    Partly Sunny

    • 52
    • 76

    Partly Sunny

Today 18 Sep Western And Central Hillsborough

Mostly sunny. Highs in the upper 70s. Light and variable Winds.

Tonight 18 Sep Western And Central Hillsborough

Clear. Lows in the mid 50s. Light and variable Winds.

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  • Temperature Real-Time

Peterborough Temperature Statistics

September Temperature

Jaffrey Airport-Silver Ranch (5 miles)

  • Lowest 9 September, 2025

    39.9 °F

  • Average September

    60.9 °F

  • Highest 6 September, 2025

    79 °F

Climate (2020–Present)

Jaffrey Airport-Silver Ranch (5 miles)

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  • Average Low 2020–2025

    38.8 °F

  • Average 2020–2025

    48.7 °F

  • Average High 2020–2025

    58.3 °F
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