Gaithersburg Weather Forecast

    • 74
    • 88

    Chance Thunderstorms

    • 74
    • 94

    Slight Chance Thunderstorms

    • 72
    • 88

    Chance Thunderstorms

    • 72
    • 87

    Chance Thunderstorms

    • 69
    • 89

    Chance Thunderstorms

    • 68
    • 86

    Slight Chance Rain Showers

    • 69
    • 86

    Chance Rain Showers

Today 16 Jul Central and Southeast Montgomery

Mostly cloudy with a chance of Showers and Thunderstorms. Highs around 90. Southwest Winds 5 to 10 Mph. Chance of rain 50 percent.

Tonight 16 Jul Central and Southeast Montgomery

Mostly cloudy. Showers and Thunderstorms Likely, mainly this evening. Some Thunderstorms may produce heavy rainfall this evening. Lows in the mid 70s. Southwest Winds around 5 Mph. Chance of rain 60 percent.

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Gaithersburg Temperature Statistics

July Temperature

Gaithersburg - Montgomery County Airport (2.5 miles)

  • Lowest 4 July, 2025

    60.1 °F

  • Average July

    77.9 °F

  • Highest 8 July, 2025

    95 °F

Climate (2020–Present)

Gaithersburg - Montgomery County Airport (2.5 miles)

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  • Average Low 2020–2025

    46.4 °F

  • Average 2020–2025

    56.1 °F

  • Average High 2020–2025

    65.9 °F
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