Waterloo Weather Forecast

    • 61
    • 80

    Increasing Clouds

    • 58
    • 79

    Rain Showers Likely

    • 55
    • 78

    Partly Sunny

    • 59
    • 80

    Mostly Sunny

    • 60
    • 80

    Chance Rain Showers

    • 56
    • 77

    Slight Chance Thunderstorms

    • 56
    • 75

    Partly Sunny

Today 17 Aug Jefferson

Partly sunny. Northwest Winds 5 to 10 Mph.

Tonight 17 Aug Jefferson

Partly cloudy. Lows around 60. Southwest Winds up to 5 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Waterloo Temperature Statistics

August Temperature

Watertown (13 miles)

  • Lowest 3 August, 2026

    52.9 °F

  • Average August

    71.2 °F

  • Highest 7 August, 2026

    83.8 °F

Climate (2021–2026)

Watertown (13 miles)

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

  • Average Low 2021–2026

    35.2 °F

  • Average 2021–2026

    44.9 °F

  • Average High 2021–2026

    53.9 °F
Get WillyWeather+ to remove ads