Oneka Lake Weather Forecast

    • 64
    • 81

    Chance Thunderstorms

    • 57
    • 79

    Mostly Sunny

    • 62
    • 82

    Chance Thunderstorms

    • 58
    • 80

    Rain Showers Likely

    • 55
    • 75

    Partly Sunny

    • 58
    • 75

    Partly Sunny

Today 15 Aug Washington

Mostly cloudy. A 50 percent chance of Thunderstorms in the afternoon. Highs in the lower 80s. South Winds 5 to 10 Mph.

Tonight 15 Aug Washington

Mostly cloudy. Chance of Showers after Midnight, then slight chance of Showers early in the morning. Near steady temperature in the upper 60s. Southeast Winds around 10 Mph. Chance of Showers 20 percent.

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Oneka Lake Temperature Statistics

August Temperature

Minneapolis / Blaine (11.8 miles)

  • Lowest 5 August, 2026

    53.4 °F

  • Average August

    69 °F

  • Highest 3 August, 2026

    86 °F

Climate (2021–2026)

Minneapolis / Blaine (11.8 miles)

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  • Average Low 2021–2026

    39.1 °F

  • Average 2021–2026

    46.8 °F

  • Average High 2021–2026

    57.5 °F
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