Grimesville Weather Forecast

    • 62
    • 83

    Chance Rain Showers

    • 66
    • 87

    Partly Sunny

    • 71
    • 92

    Partly Sunny

    • 73
    • 97

    Hot

    • 73
    • 100

    Hot

    • 70
    • 96

    Chance Thunderstorms

Today 28 Jun Southern Lycoming

Mostly cloudy with a slight chance of Showers in the Morning, then partly sunny with a chance of Showers with a slight chance of Thunderstorms in the afternoon. Humid with Highs in the lower 80s. Light and variable Winds, becoming east around 5 Mph in the afternoon. Chance of rain 40 percent.

Tonight 28 Jun Southern Lycoming

Mostly clear in the Evening, then becoming partly cloudy. Lows in the lower 60s. Northeast Winds around 5 Mph in the Evening, becoming light and variable.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Grimesville Temperature Statistics

June Temperature

Williamsport - Lycoming County Airport (7.5 miles)

  • Lowest 1 June, 2026

    45.6 °F

  • Average June

    69.8 °F

  • Highest 11 June, 2026

    92.6 °F

Climate (2021–2026)

Williamsport - Lycoming County Airport (7.5 miles)

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  • Average Low 2021–2026

    43.6 °F

  • Average 2021–2026

    52.9 °F

  • Average High 2021–2026

    63.3 °F
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