Lake Oswego Weather Forecast

    • 54
    • 77

    Partly Sunny

    • 48
    • 76

    Rain Showers

    • 46
    • 58

    Rain Showers

    • 42
    • 54

    Rain Showers

    • 41
    • 57

    Chance Rain Showers

    • 44
    • 60

    Rain Showers Likely

Today 25 Mar Inner Portland Metro

Patchy dense fog this morning. Partly sunny. Highs in the upper 70s. North wind 5 to 10 Mph.

Tonight 25 Mar Inner Portland Metro

Partly cloudy. Lows in the mid 50s. Winds light.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lake Oswego Temperature Statistics

March Temperature

Portland, Portland International Airport (12.4 miles)

  • Lowest 6 March, 2025

    36.6 °F

  • Average March

    48.7 °F

  • Highest 1 March, 2025

    66.7 °F

Climate (2020–Present)

Portland, Portland International Airport (12.4 miles)

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  • Average Low 2020–2025

    48.2 °F

  • Average 2020–2025

    55.9 °F

  • Average High 2020–2025

    64.9 °F
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