Gap Weather Forecast

    • 42
    • 54

    Chance Rain Showers

    • 46
    • 66

    Chance Rain Showers

    • 47
    • 70

    Partly Sunny

    • 49
    • 71

    Chance Rain Showers

    • 48
    • 62

    Rain Showers Likely

    • 45
    • 61

    Chance Rain Showers

Today 21 Apr Lancaster

Widespread frost in the morning. Sunny. Highs in the mid 50s. Northwest Winds around 5 Mph, becoming southwest in the afternoon.

Tonight 21 Apr Lancaster

Partly cloudy in the Evening, then mostly cloudy with a chance of Showers after midnight. Not as cool with Lows in the lower 40s. South Winds 5 to 10 Mph. Chance of rain 40 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Gap Temperature Statistics

April Temperature

Chester County Airport (8.1 miles)

  • Lowest 8 April, 2026

    27.3 °F

  • Average April

    56.6 °F

  • Highest 16 April, 2026

    87.1 °F

Climate (2021–Present)

Chester County Airport (8.1 miles)

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  • Average Low 2021–2026

    45.9 °F

  • Average 2021–2026

    54.5 °F

  • Average High 2021–2026

    63 °F
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