Onondaga Weather Forecast

    • 19
    • 47

    Rain Showers

    • 18
    • 26

    Chance Snow Showers

    • 17
    • 38

    Slight Chance Snow Showers

    • 15
    • 24

    Partly Sunny

    • 28
    • 35

    Mostly Cloudy

    • 29
    • 44

    Mostly Cloudy

Today 18 Dec Ingham

Rain Showers. Patchy fog. Highs in the upper 40s. South Winds 15 to 20 Mph. Chance of rain 100 percent.

Tonight 18 Dec Ingham

Patchy fog in the evening. Rain Showers in the Evening, then a chance of snow Showers, possibly mixed with rain Showers after midnight. Little or no snow accumulation. Lows around 20. Southwest Winds 10 to 20 Mph. Gusts up to 45 Mph decreasing to 35 Mph after midnight. Chance of precipitation 100 percent.

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Onondaga Temperature Statistics

December Temperature

Mason, Mason Jewett Field Airport (10.6 miles)

  • Lowest 8 December, 2025

    -1.3 °F

  • Average December

    22.1 °F

  • Highest 10 December, 2025

    36.5 °F

Climate (2020–Present)

Mason, Mason Jewett Field Airport (10.6 miles)

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  • Average Low 2020–2025

    41.3 °F

  • Average 2020–2025

    50.4 °F

  • Average High 2020–2025

    59.5 °F
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