Nassau Weather Forecast

    • 70
    • 87

    Decreasing Clouds

    • 68
    • 85

    Rain Showers

    • 68
    • 81

    Rain Showers Likely

    • 67
    • 81

    Rain Showers Likely

    • 66
    • 84

    Chance Thunderstorms

    • 65
    • 83

    Mostly Sunny

Today 19 Aug Inland Sussex

Patchy dense fog this morning. Mostly sunny. Hot with Highs in the upper 80s. West Winds 5 to 10 Mph.

Tonight 19 Aug Inland Sussex

Mostly clear in the Evening, then becoming partly cloudy. Humid with Lows around 70. South Winds around 5 Mph.

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Nassau Temperature Statistics

August Temperature

Georgetown - Delaware Coastal Airport (9.9 miles)

  • Lowest 1 August, 2026

    67.6 °F

  • Average August

    80.6 °F

  • Highest 10 August, 2026

    93.7 °F

Climate (2021–2026)

Georgetown - Delaware Coastal Airport (9.9 miles)

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  • Average Low 2021–2026

    48.9 °F

  • Average 2021–2026

    58.6 °F

  • Average High 2021–2026

    68.3 °F
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