Chantilly Weather Forecast

    • 46
    • 63

    Rain Showers Likely

    • 45
    • 56

    Chance Rain Showers

    • 59
    • 75

    Rain Showers Likely

    • 50
    • 69

    Chance Rain Showers

    • 54
    • 74

    Mostly Sunny

    • 61
    • 78

    Partly Sunny

    • 50
    • 80

    Rain Showers Likely

Today 5 Mar Eastern Loudoun

Partly sunny with scattered Showers with isolated Thunderstorms. Highs in the lower 60s. Southeast Winds around 5 Mph. Chance of rain 40 percent.

Tonight 5 Mar Eastern Loudoun

Mostly cloudy. Numerous Showers with isolated Thunderstorms in the Evening, then scattered Showers after midnight. Patchy fog. Lows in the mid 40s. East Winds around 5 Mph. Chance of rain 70 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Chantilly Temperature Statistics

March Temperature

Washington/Dulles International Airport, DC (2.5 miles)

  • Lowest 2 March, 2026

    28.9 °F

  • Average March

    37.2 °F

  • Highest 1 March, 2026

    54 °F

Climate (2021–Present)

Washington/Dulles International Airport, DC (2.5 miles)

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  • Average Low 2021–2026

    47.5 °F

  • Average 2021–2026

    58.1 °F

  • Average High 2021–2026

    68.4 °F
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