Chantilly Weather Forecast

    • 60
    • 78

    Rain Showers

    • 61
    • 82

    Mostly Sunny

    • 67
    • 87

    Partly Sunny

    • 68
    • 91

    Chance Thunderstorms

    • 68
    • 88

    Chance Thunderstorms

    • 69
    • 90

    Slight Chance Thunderstorms

Today 23 Jun Eastern Loudoun

Showers with a slight chance of Thunderstorms. Highs in the upper 70s. Northwest Winds 5 to 10 Mph, becoming north around 15 Mph with Gusts up to 25 Mph in the afternoon. Chance of rain 90 percent.

Tonight 23 Jun Eastern Loudoun

Partly cloudy in the Evening, then clearing. Lows in the upper 50s. North Winds 10 to 15 Mph, becoming northwest around 5 Mph after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Chantilly Temperature Statistics

June Temperature

Washington/Dulles International Airport, DC (2.5 miles)

  • Lowest 3 June, 2026

    50.6 °F

  • Average June

    74.3 °F

  • Highest 11 June, 2026

    94.6 °F

Climate (2021–2026)

Washington/Dulles International Airport, DC (2.5 miles)

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  • Average Low 2021–2026

    47.5 °F

  • Average 2021–2026

    58.2 °F

  • Average High 2021–2026

    68.6 °F
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