Nassau Weather Forecast

    • 36
    • 56

    Dense Fog

    • 37
    • 44

    Rain

    • 36
    • 52

    Rain

    • 34
    • 50

    Rain Likely

    • 27
    • 43

    Chance Rain/Snow

    • 21
    • 39

    Slight Chance Snow

Today 18 Feb Inland Sussex

Cloudy. Patchy dense fog this morning. A chance of rain this afternoon. Not as cool with Highs in the upper 50s. Southwest Winds 5 to 10 Mph with Gusts up to 20 Mph. Chance of rain 40 percent.

Tonight 18 Feb Inland Sussex

Mostly cloudy with a slight chance of rain in the Evening, then partly cloudy after midnight. Patchy fog after midnight. Lows around 40. Southwest Winds 5 to 10 Mph, becoming northwest after midnight. Chance of rain 20 percent.

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Nassau Temperature Statistics

February Temperature

Georgetown - Delaware Coastal Airport (9.9 miles)

  • Lowest 8 February, 2026

    10.7 °F

  • Average February

    29.8 °F

  • Highest 14 February, 2026

    53.1 °F

Climate (2021–Present)

Georgetown - Delaware Coastal Airport (9.9 miles)

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  • Average Low 2021–2026

    49 °F

  • Average 2021–2026

    58.6 °F

  • Average High 2021–2026

    68.2 °F
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