Seneca Weather Forecast

    • 13
    • 27

    Mostly Sunny

    • 30
    • 40

    Partly Sunny

    • 25
    • 49

    Partly Sunny

    • 10
    • 37

    Mostly Cloudy

    • 12
    • 19

    Snow Likely

    • 10
    • 21

    Chance Snow

Today 20 Jan Northwest Montgomery

Sunny. Highs in the mid 20s. West Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 20 Jan Northwest Montgomery

Mostly clear. Lows around 13. Northwest Winds around 5 Mph in the Evening, becoming light and variable.

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Seneca Temperature Statistics

January Temperature

Gaithersburg - Montgomery County Airport (11.2 miles)

  • Lowest 16 January, 2026

    18 °F

  • Average January

    35.8 °F

  • Highest 7 January, 2026

    57.9 °F

Climate (2021–Present)

Gaithersburg - Montgomery County Airport (11.2 miles)

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  • Average Low 2021–2026

    46.3 °F

  • Average 2021–2026

    56 °F

  • Average High 2021–2026

    65.9 °F
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