Ontario Weather Forecast

    • 65
    • 80

    Chance Rain Showers

    • 63
    • 80

    Chance Rain Showers

    • 69
    • 83

    Rain Showers Likely

    • 65
    • 86

    Rain Showers Likely

    • 59
    • 79

    Slight Chance Thunderstorms

    • 61
    • 78

    Mostly Sunny

    • 64
    • 81

    Chance Rain Showers

Today 13 Aug Richland

Mostly cloudy. Near steady temperature in the upper 70s. West Winds around 5 Mph.

Tonight 13 Aug Richland

Mostly cloudy. A slight chance of Showers in the Evening, then a chance of Showers with a slight chance of Thunderstorms after midnight. Patchy fog after midnight. Humid with Lows in the mid 60s. East Winds around 5 Mph. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Ontario Temperature Statistics

August Temperature

Mansfield - Mansfield Lahm Regional Airport (5.6 miles)

  • Lowest 4 August, 2026

    53.7 °F

  • Average August

    73 °F

  • Highest 8 August, 2026

    86.6 °F

Climate (2021–2026)

Mansfield - Mansfield Lahm Regional Airport (5.6 miles)

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  • Average Low 2021–2026

    43.4 °F

  • Average 2021–2026

    52.4 °F

  • Average High 2021–2026

    61.5 °F
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