Grenville Weather Forecast

    • 32
    • 60

    Rain/Snow Likely

    • 25
    • 42

    Rain/Snow

    • 40
    • 64

    Mostly Sunny

    • 44
    • 74

    Mostly Sunny

    • 44
    • 81

    Partly Sunny

    • 41
    • 68

    Chance Thunderstorms

Today 5 May Union County

Much cooler. Mostly cloudy with a chance of Showers with a slight chance of Thunderstorms. Highs in the lower 60s. Southeast Winds 15 to 20 Mph. Chance of rain 50 percent.

Tonight 5 May Union County

Breezy, cooler. Mostly cloudy. Rain Showers likely with a slight chance of Thunderstorms in the Evening, then a chance of rain Showers with a slight chance of snow Showers after midnight. Areas of fog after midnight. No snow accumulation. Lows in the mid 30s. East Winds 15 to 25 Mph. Chance of precipitation 70 percent.

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Grenville Temperature Statistics

May Temperature

Clayton Municipal Airpark (27.3 miles)

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  • Average May

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Climate (2021–Present)

Clayton Municipal Airpark (27.3 miles)

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  • Average Low 2021–2026

    42.9 °F

  • Average 2021–2026

    56.3 °F

  • Average High 2021–2026

    70.3 °F
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