Summerside Weather Forecast

    • 45
    • 66

    Increasing Clouds

    • 43
    • 68

    Mostly Sunny

    • 47
    • 69

    Partly Sunny

    • 42
    • 69

    Sunny

    • 44
    • 74

    Partly Sunny

    • 47
    • 75

    Partly Sunny

Today 13 Apr Santa Clara Valley Including San Jose

Sunny. Highs in the mid 60s. Northwest Winds 5 to 15 Mph.

Tonight 13 Apr Santa Clara Valley Including San Jose

Mostly clear in the evening then becoming partly cloudy. Patchy fog after midnight. Lows in the 40s. Northwest Winds 5 to 15 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Summerside Temperature Statistics

April Temperature

San Jose / Reid / Hillv (1.9 miles)

  • Lowest 3 April, 2026

    44.6 °F

  • Average April

    65.4 °F

  • Highest 5 April, 2026

    87.8 °F

Climate (2021–Present)

San Jose / Reid / Hillv (1.9 miles)

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  • Average Low 2021–2026

    51.9 °F

  • Average 2021–2026

    63.7 °F

  • Average High 2021–2026

    72.4 °F
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