Portland-Hillsboro Airport Weather Forecast

    • 39
    • 62

    Rain Likely

    • 32
    • 55

    Becoming Sunny

    • 37
    • 57

    Mostly Cloudy

    • 43
    • 57

    Chance Rain

    • 43
    • 60

    Rain Likely

    • 34
    • 56

    Rain Likely

    • 36
    • 57

    Mostly Sunny

Today 20 Mar Tualatin Valley

Rain likely. Highs in the mid 60s. Winds light. Chance of rain 70 percent. Rainfall Amounts less than a tenth of an inch.

Tonight 20 Mar Tualatin Valley

Mostly cloudy. A chance of rain this evening. Lows in the upper 30s. Winds light. Chance of rain 50 percent. Rainfall Amounts less than a tenth of an inch.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Portland-Hillsboro Airport Temperature Statistics

March Temperature

Portland-Hillsboro Airport (0 miles)

  • Lowest 9 March, 2026

    33.7 °F

  • Average March

    49 °F

  • Highest 16 March, 2026

    68.6 °F

Climate (2021–Present)

Portland-Hillsboro Airport (0 miles)

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

  • Average Low 2021–2026

    43.4 °F

  • Average 2021–2026

    53.8 °F

  • Average High 2021–2026

    64.5 °F
Get WillyWeather+ to remove ads