Alder Lake Weather Forecast

    • 40
    • 65

    Sunny

    • 44
    • 72

    Chance Rain Showers

    • 41
    • 63

    Mostly Sunny

    • 37
    • 61

    Mostly Sunny

    • 39
    • 61

    Partly Sunny

    • 45
    • 61

    Chance Rain Showers

Today 20 Oct Eastern Loudoun

Mostly sunny. Highs in the mid 60s. West Winds 15 to 20 Mph with Gusts up to 35 Mph.

Tonight 20 Oct Eastern Loudoun

Clear. Lows around 40. West Winds 10 to 15 Mph with Gusts up to 25 Mph, becoming southwest around 5 Mph after midnight.

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Alder Lake Temperature Statistics

October Temperature

Leesburg / Godfrey (5.6 miles)

  • Lowest 10 October, 2025

    41 °F

  • Average October

    59.9 °F

  • Highest 6 October, 2025

    82.4 °F

Climate (2020–Present)

Leesburg / Godfrey (5.6 miles)

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  • Average Low 2020–2025

    47.5 °F

  • Average 2020–2025

    57 °F

  • Average High 2020–2025

    66.7 °F
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