Columbia River - Tomahawk Island Weather Forecast

    • 40
    • 63

    Partly Sunny

    • 33
    • 54

    Mostly Cloudy

    • 36
    • 55

    Partly Sunny

    • 43
    • 59

    Rain Likely

    • 41
    • 52

    Rain

    • 40
    • 53

    Rain

Today 28 Mar Inner Portland Metro

Mostly sunny. Highs in the mid 60s. Winds light.

Tonight 28 Mar Inner Portland Metro

Partly cloudy in the Evening, then becoming mostly cloudy. Lows around 40. Winds light.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Columbia River - Tomahawk Island Temperature Statistics

March Temperature

Pearson Airfield (0.6 miles)

  • Lowest 22 March, 2026

    32 °F

  • Average March

    50 °F

  • Highest 18 March, 2026

    70.6 °F

Climate (2021–Present)

Pearson Airfield (0.6 miles)

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  • Average Low 2021–2026

    46.4 °F

  • Average 2021–2026

    55.4 °F

  • Average High 2021–2026

    64.7 °F
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