Great Marsh Preserve Weather Forecast

    • 33
    • 56

    Decreasing Clouds

    • 46
    • 55

    Rain

    • 28
    • 56

    Rain Likely

    • 36
    • 46

    Partly Sunny

    • 26
    • 52

    Partly Sunny

    • 26
    • 40

    Partly Sunny

    • 34
    • 48

    Slight Chance Rain

Today 17 Dec Inland Sussex

Partly sunny. Not as cool with Highs in the mid 50s. Temperature falling into the upper 40s late. Southwest Winds 5 to 10 Mph with Gusts up to 25 Mph.

Tonight 17 Dec Inland Sussex

Mostly cloudy in the Evening, then clearing. Patchy fog after midnight. Cold with Lows around 30. West Winds around 5 Mph, becoming northeast after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Great Marsh Preserve Temperature Statistics

December Temperature

Georgetown - Delaware Coastal Airport (11.8 miles)

  • Lowest 14 December, 2025

    18 °F

  • Average December

    33.1 °F

  • Highest 10 December, 2025

    46.9 °F

Climate (2020–Present)

Georgetown - Delaware Coastal Airport (11.8 miles)

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  • Average Low 2020–2025

    49.2 °F

  • Average 2020–2025

    58.7 °F

  • Average High 2020–2025

    68.3 °F
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