Longview Weather Forecast

    • 39
    • 46

    Rain

    • 35
    • 46

    Rain

    • 33
    • 50

    Chance Rain/Snow

    • 42
    • 49

    Rain Likely

    • 42
    • 60

    Chance Rain

    • 50
    • 63

    Rain Likely

    • 48
    • 61

    Rain Likely

Today 12 Mar Cowlitz County Lowlands

Rain. Highs in the upper 40s. Winds light. Chance of rain near 100 percent. Rainfall Amounts around a quarter of an inch.

Tonight 12 Mar Cowlitz County Lowlands

Patchy fog this evening. Rain. Lows in the upper 30s. Winds light. Chance of rain near 100 percent. Rainfall Amounts three Quarters of an inch to one inch.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Longview Temperature Statistics

March Temperature

Southwest Washington Regional Airport (2.5 miles)

  • Lowest 10 March, 2026

    32 °F

  • Average March

    46.8 °F

  • Highest 1 March, 2026

    62.1 °F

Climate (2021–Present)

Southwest Washington Regional Airport (2.5 miles)

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  • Average Low 2021–2026

    45.1 °F

  • Average 2021–2026

    53 °F

  • Average High 2021–2026

    62.5 °F
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