Glenelg Weather Forecast

    • 59
    • 81

    Becoming Sunny

    • 64
    • 76

    Slight Chance Rain Showers

    • 64
    • 79

    Rain Showers Likely

    • 59
    • 72

    Chance Rain Showers

    • 53
    • 62

    Rain Showers Likely

    • 53
    • 59

    Chance Rain Showers

Today 18 Sep Northwest Howard

Mostly sunny. Highs in the lower 80s. North Winds 5 to 10 Mph.

Tonight 18 Sep Northwest Howard

Mostly clear in the Evening, then becoming partly cloudy. Lows in the upper 50s. Northeast Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Glenelg Temperature Statistics

September Temperature

Gaithersburg - Montgomery County Airport (11.2 miles)

  • Lowest 15 September, 2026

    50 °F

  • Average September

    73.6 °F

  • Highest 1 September, 2026

    93.9 °F

Climate (2021–2026)

Gaithersburg - Montgomery County Airport (11.2 miles)

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  • Average Low 2021–2026

    46.2 °F

  • Average 2021–2026

    56 °F

  • Average High 2021–2026

    65.9 °F
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