Tennyson Lake Weather Forecast

    • 71
    • 88

    Mostly Sunny

    • 70
    • 91

    Rain Showers

    • 67
    • 88

    Chance Thunderstorms

    • 61
    • 82

    Slight Chance Thunderstorms

    • 56
    • 78

    Mostly Sunny

    • 56
    • 78

    Mostly Sunny

    • 58
    • 79

    Partly Sunny

Today 26 Jul Isanti

Sunny. Highs in the upper 80s. Southwest Winds 5 to 15 Mph.

Tonight 26 Jul Isanti

Mostly clear. Lows around 70. South Winds up to 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Tennyson Lake Temperature Statistics

July Temperature

Princeton (6.8 miles)

  • Lowest 17 July, 2025

    48.2 °F
  • Average July

    73 °F
  • Highest 4 July, 2025

    93.2 °F

Climate (2020–Present)

Princeton (6.8 miles)

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  • Average Low 2020–2025

    35.2 °F
  • Average 2020–2025

    46.1 °F
  • Average High 2020–2025

    56.3 °F
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