Ontario Weather Forecast

    • 55
    • 79

    Partly Sunny

    • 62
    • 77

    Slight Chance Thunderstorms

    • 63
    • 83

    Thunderstorms Likely

    • 59
    • 79

    Mostly Sunny

    • 57
    • 77

    Partly Sunny

    • 57
    • 76

    Slight Chance Thunderstorms

Today 24 Aug Knox

Partly cloudy. Lows in the mid 50s. East Winds 5 to 10 Mph.

Graph Plots Open in Graphs
  • Temperature Forecast NOAA

  • Temperature Real-Time

Ontario Temperature Statistics

August Temperature

Galesburg Municipal Airport (11.8 miles)

  • Lowest 1 August, 2019

    55 °F
  • Average August

    73.1 °F
  • Highest 19 August, 2019

    89.8 °F

Climate (2010–Present)

Galesburg Municipal Airport (11.8 miles)

Take a look at our website widgetsAvailable free! Find Out More
  • Average Low 2010–Present

    42.2 °F
  • Average 2010–Present

    52.2 °F
  • Average High 2010–Present

    61.7 °F
Get an account to remove ads