Arlington Heights Weather Forecast

    • 35
    • 42

    Rain/Snow

    • 32
    • 45

    Chance Rain Showers

    • 35
    • 46

    Chance Rain/Snow

    • 39
    • 48

    Rain Likely

    • 40
    • 53

    Rain

    • 40
    • 52

    Rain

Today 18 Feb West Hills and Chehalem Mountains

Rain and snow Showers, mainly this morning. Snow level 500 Feet, increasing to 1500 feet this afternoon. Snow accumulation up to 1 inch. Highs in the lower 40s. South wind 5 to 10 Mph. Chance of precipitation 80 percent. Rainfall Amounts a tenth to a quarter of an inch.

Tonight 18 Feb West Hills and Chehalem Mountains

Snow and rain Showers, mainly in the evening. Snow level 500 feet. Snow accumulation up to 2 Inches. Lows in the lower 30s. Southeast wind 5 to 10 Mph. Chance of precipitation 90 percent. Rainfall Amounts a quarter to a half of an inch.

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Arlington Heights Temperature Statistics

February Temperature

Portland, Portland International Airport (6.8 miles)

  • Lowest 5 February, 2026

    34.6 °F

  • Average February

    46.4 °F

  • Highest 5 February, 2026

    59.6 °F

Climate (2021–Present)

Portland, Portland International Airport (6.8 miles)

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  • Average Low 2021–2026

    48.4 °F

  • Average 2021–2026

    56.3 °F

  • Average High 2021–2026

    65.5 °F
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