Arlington Heights Weather Forecast

    • 49
    • 72

    Sunny

    • 57
    • 84

    Mostly Sunny

    • 58
    • 89

    Partly Sunny

    • 54
    • 77

    Mostly Cloudy

    • 50
    • 74

    Partly Sunny

    • 50
    • 70

    Chance Rain

Today 31 May West Hills and Chehalem Mountains

Sunny. Highs around 70. North wind 5 to 10 Mph.

Tonight 31 May West Hills and Chehalem Mountains

Clear. Lows in the upper 40s. North wind 10 to 15 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Arlington Heights Temperature Statistics

May Temperature

Portland, Portland International Airport (6.8 miles)

  • Lowest 17 May, 2026

    41.6 °F

  • Average May

    62.5 °F

  • Highest 3 May, 2026

    91.7 °F

Climate (2021–Present)

Portland, Portland International Airport (6.8 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    48.4 °F

  • Average 2021–2026

    56.4 °F

  • Average High 2021–2026

    65.6 °F
Get WillyWeather+ to remove ads