Fullerton Weather Forecast

    • 45
    • 64

    Partly Sunny

    • 47
    • 69

    Mostly Sunny

    • 51
    • 69

    Chance Rain Showers

    • 56
    • 70

    Rain Showers Likely

    • 56
    • 71

    Chance Rain Showers

    • 54
    • 73

    Chance Rain Showers

Today 23 May Greenup

Sunny in the Morning, then becoming partly sunny. Highs in the mid 60s. Northwest Winds 5 to 10 Mph with Gusts up to 20 Mph.

Tonight 23 May Greenup

Partly cloudy. Lows in the mid 40s. West Winds 5 to 10 Mph.

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Fullerton Temperature Statistics

May Temperature

Ashland Regional Airport (17.4 miles)

  • Lowest 10 May, 2025

    39.2 °F

  • Average May

    63.6 °F

  • Highest 15 May, 2025

    86 °F

Climate (2020–Present)

Ashland Regional Airport (17.4 miles)

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  • Average Low 2020–2025

    46.4 °F

  • Average 2020–2025

    55.9 °F

  • Average High 2020–2025

    67.2 °F
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