Chantilly Weather Forecast

    • 62
    • 74

    Rain Showers Likely

    • 63
    • 79

    Rain Showers Likely

    • 63
    • 76

    Rain Showers Likely

    • 64
    • 79

    Chance Thunderstorms

    • 59
    • 81

    Chance Rain Showers

    • 55
    • 76

    Partly Sunny

Today 24 May Eastern Loudoun

Mostly cloudy with a 50 percent chance of Showers. Patchy fog. Highs in the lower 70s. Northeast Winds around 5 Mph.

Tonight 24 May Eastern Loudoun

Mostly cloudy with a slight chance of Thunderstorms. A slight chance of Showers in the Evening, then a chance of Showers after midnight. Patchy fog in the evening. Areas of fog after midnight. Lows in the upper 50s. East Winds around 5 Mph in the Evening, becoming light and variable. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Chantilly Temperature Statistics

May Temperature

Washington/Dulles International Airport, DC (2.5 miles)

  • Lowest 8 May, 2026

    37.7 °F

  • Average May

    63.7 °F

  • Highest 19 May, 2026

    96.7 °F

Climate (2021–Present)

Washington/Dulles International Airport, DC (2.5 miles)

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  • Average Low 2021–2026

    47.6 °F

  • Average 2021–2026

    58.2 °F

  • Average High 2021–2026

    68.6 °F
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