Ontario Weather Forecast

    • 31
    • 41

    Increasing Clouds

    • 48
    • 55

    Mostly Cloudy

    • 60
    • 66

    Chance Rain

    • 43
    • 75

    Rain

    • 33
    • 49

    Chance Rain/Snow

    • 43
    • 55

    Rain Likely

    • 51
    • 62

    Chance Rain

Today 28 Mar Richland

Sunny. Highs in the lower 40s. West Winds 5 to 10 Mph.

Tonight 28 Mar Richland

Clear this Evening, then becoming partly cloudy. Lows in the lower 30s. South Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Ontario Temperature Statistics

March Temperature

Mansfield - Mansfield Lahm Regional Airport (5.6 miles)

  • Lowest 18 March, 2026

    14.6 °F

  • Average March

    45.1 °F

  • Highest 22 March, 2026

    77.6 °F

Climate (2021–Present)

Mansfield - Mansfield Lahm Regional Airport (5.6 miles)

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  • Average Low 2021–2026

    43.6 °F

  • Average 2021–2026

    52.4 °F

  • Average High 2021–2026

    61.5 °F
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