Mount Gretna Weather Forecast

    • 71
    • 90

    Increasing Clouds

    • 76
    • 97

    Isolated Thunderstorms

    • 78
    • 100

    Hot

    • 75
    • 101

    Hot

    • 72
    • 98

    Chance Thunderstorms

    • 71
    • 94

    Chance Thunderstorms

Today 30 Jun Lebanon

Sunny. Very warm. Humid with Highs in the upper 80s. Southwest Winds around 5 Mph, increasing to 10 to 15 Mph in the afternoon.

Tonight 30 Jun Lebanon

Mostly clear. Near steady temperature in the upper 60s. South Winds around 5 Mph.

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  • Temperature Real-Time

Mount Gretna Temperature Statistics

June Temperature

Lancaster, Lancaster Airport (12.4 miles)

  • Lowest 2 June, 2026

    46.9 °F

  • Average June

    71.7 °F

  • Highest 12 June, 2026

    95 °F

Climate (2021–2026)

Lancaster, Lancaster Airport (12.4 miles)

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  • Average Low 2021–2026

    45.9 °F

  • Average 2021–2026

    55.5 °F

  • Average High 2021–2026

    65.1 °F
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