Ontario Weather Forecast

    • 64
    • 83

    Severe Tstms

    • 61
    • 74

    Chance Rain Showers

    • 69
    • 82

    Partly Sunny

    • 75
    • 88

    Mostly Sunny

    • 74
    • 93

    Mostly Sunny

    • 75
    • 93

    Mostly Sunny

    • 72
    • 92

    Chance Thunderstorms

Today 18 Jun Lagrange

Showers and Thunderstorms. Some Thunderstorms may be severe with damaging Winds. Locally heavy rainfall possible. Near steady temperature in the lower 80s. South Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 90 percent.

Tonight 18 Jun Lagrange

Cloudy. Showers and Thunderstorms, mainly this evening. Some Thunderstorms may produce damaging Winds and large hail this evening. Lows in the mid 60s. South Winds 10 to 15 Mph, becoming west after midnight. Gusts up to 30 Mph. Chance of rain 90 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Ontario Temperature Statistics

June Temperature

Sturgis, Kirsch Municipal Airport (8.1 miles)

  • Lowest 1 June, 2025

    39.2 °F

  • Average June

    66.2 °F

  • Highest 3 June, 2025

    87.8 °F

Climate (2020–Present)

Sturgis, Kirsch Municipal Airport (8.1 miles)

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  • Average Low 2020–2025

    42.2 °F

  • Average 2020–2025

    50.8 °F

  • Average High 2020–2025

    59.6 °F
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