Potomac Weather Forecast

    • 71
    • 86

    Increasing Clouds

    • 68
    • 91

    Chance Thunderstorms

    • 62
    • 84

    Partly Sunny

    • 62
    • 82

    Mostly Sunny

    • 65
    • 86

    Chance Rain Showers

    • 65
    • 86

    Rain Showers Likely

Today 17 Jun Central and Southeast Montgomery

Sunny. Highs in the mid 80s. Southwest Winds around 5 Mph.

Tonight 17 Jun Central and Southeast Montgomery

Partly cloudy in the Evening, then becoming mostly cloudy. Lows around 70. South Winds 5 to 10 Mph. Gusts up to 25 Mph after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Potomac Temperature Statistics

June Temperature

Gaithersburg - Montgomery County Airport (10.6 miles)

  • Lowest 2 June, 2026

    48.2 °F

  • Average June

    73 °F

  • Highest 11 June, 2026

    95 °F

Climate (2021–2026)

Gaithersburg - Montgomery County Airport (10.6 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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