Monmouth Weather Forecast

    • 37
    • 55

    Increasing Clouds

    • 43
    • 58

    Rain

    • 39
    • 52

    Rain

    • 35
    • 55

    Rain Likely

    • 38
    • 60

    Mostly Sunny

    • 41
    • 67

    Partly Sunny

Today 30 Mar West Central Willamette Valley

Mostly sunny. Highs in the mid 50s. Northeast wind 5 to 10 Mph.

Tonight 30 Mar West Central Willamette Valley

Mostly clear in the Evening, then becoming partly cloudy. Lows in the mid 30s. North wind 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Monmouth Temperature Statistics

March Temperature

Salem - McNary Field (11.8 miles)

  • Lowest 26 March, 2026

    30.7 °F

  • Average March

    49.9 °F

  • Highest 19 March, 2026

    72.6 °F

Climate (2021–Present)

Salem - McNary Field (11.8 miles)

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  • Average Low 2021–2026

    45.9 °F

  • Average 2021–2026

    55.5 °F

  • Average High 2021–2026

    65.9 °F
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