Waterloo Weather Forecast

    • 48
    • 75

    Becoming Sunny

    • 51
    • 78

    Partly Sunny

    • 44
    • 67

    Rain

    • 44
    • 61

    Rain Showers

    • 45
    • 65

    Partly Sunny

    • 48
    • 71

    Partly Sunny

Today 23 May Linn County Lowlands

Mostly sunny. Highs in the mid 70s. North wind 5 to 10 Mph.

Tonight 23 May Linn County Lowlands

Mostly clear. Lows in the upper 40s. North wind 5 to 10 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Waterloo Temperature Statistics

May Temperature

Corvallis, Corvallis Municipal Airport (22.4 miles)

  • Lowest 15 May, 2026

    39.9 °F

  • Average May

    58.3 °F

  • Highest 3 May, 2026

    88 °F

Climate (2021–Present)

Corvallis, Corvallis Municipal Airport (22.4 miles)

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

  • Average Low 2021–2026

    43.5 °F

  • Average 2021–2026

    53.2 °F

  • Average High 2021–2026

    64.1 °F
Get WillyWeather+ to remove ads