Rockville Weather Forecast

    • 68
    • 78

    Chance Rain Showers

    • 63
    • 78

    Rain Showers

    • 53
    • 71

    Rain Showers Likely

    • 52
    • 70

    Mostly Sunny

    • 54
    • 73

    Mostly Sunny

    • 52
    • 72

    Mostly Sunny

Today 21 Sep Central and Southeast Montgomery

Mostly cloudy in the Morning, then becoming partly sunny. A 20 percent chance of Showers. Highs in the upper 70s. East Winds 5 to 10 Mph.

Tonight 21 Sep Central and Southeast Montgomery

Mostly cloudy. A slight chance of Showers in the Evening, then a chance of Showers after midnight. Lows in the upper 60s. Southeast Winds 5 to 10 Mph. Chance of rain 40 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Rockville Temperature Statistics

September Temperature

Gaithersburg - Montgomery County Airport (5.6 miles)

  • Lowest 3 September, 2021

    52 °F

  • Average September

    70.7 °F

  • Highest 15 September, 2021

    89.1 °F

Climate (2010–Present)

Gaithersburg - Montgomery County Airport (5.6 miles)

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  • Average Low 2010–Present

    47.4 °F

  • Average 2010–Present

    56.5 °F

  • Average High 2010–Present

    66.2 °F
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