Grove City Weather Forecast

    • 66
    • 75

    Rain Showers Likely

    • 60
    • 82

    Mostly Cloudy

    • 57
    • 82

    Slight Chance Rain Showers

    • 62
    • 82

    Chance Rain Showers

    • 65
    • 84

    Rain Showers Likely

    • 58
    • 81

    Partly Sunny

    • 58
    • 81

    Partly Sunny

Today 12 Aug Mercer

Mostly cloudy with a chance of Showers and Thunderstorms. Highs in the lower 80s. Southwest Winds 5 to 10 Mph. Chance of rain 40 percent.

Tonight 12 Aug Mercer

Considerable cloudiness. Showers and scattered Thunderstorms this Evening, then scattered Showers with isolated Thunderstorms after midnight. Lows in the mid 60s. Southwest Winds around 5 Mph. Gusts up to 20 Mph this evening. Chance of rain 80 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Grove City Temperature Statistics

August Temperature

New Castle, New Castle Municipal Airport (18.6 miles)

  • Lowest 4 August, 2026

    52 °F

  • Average August

    72.7 °F

  • Highest 5 August, 2026

    87.1 °F

Climate (2021–2026)

New Castle, New Castle Municipal Airport (18.6 miles)

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  • Average Low 2021–2026

    41.7 °F

  • Average 2021–2026

    51.4 °F

  • Average High 2021–2026

    61.1 °F
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