Summerside Weather Forecast

    • 33
    • 55

    Mostly Sunny

    • 35
    • 56

    Mostly Sunny

    • 39
    • 60

    Mostly Cloudy

    • 40
    • 62

    Partly Sunny

    • 42
    • 63

    Mostly Sunny

    • 44
    • 67

    Mostly Sunny

Today 8 Jan Santa Clara Valley Including San Jose

Sunny. Highs in the mid 50s. Northwest Winds 10 to 15 Mph.

Tonight 8 Jan Santa Clara Valley Including San Jose

Mostly clear in the evening then becoming partly cloudy. Areas of frost after midnight. Lows in the mid 30s. North Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Summerside Temperature Statistics

January Temperature

San Jose / Reid / Hillv (1.9 miles)

  • Lowest 6 January, 2026

    48.2 °F

  • Average January

    57.2 °F

  • Highest 2 January, 2026

    64.4 °F

Climate (2021–Present)

San Jose / Reid / Hillv (1.9 miles)

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  • Average Low 2021–2026

    51.7 °F

  • Average 2021–2026

    63.5 °F

  • Average High 2021–2026

    72.1 °F
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