Chantilly Weather Forecast

    • 32
    • 61

    Rain Showers

    • 30
    • 48

    Mostly Sunny

    • 46
    • 59

    Partly Sunny

    • 53
    • 67

    Chance Rain

    • 61
    • 76

    Chance Rain

    • 61
    • 83

    Chance Rain

Today 27 Mar Eastern Loudoun

Showers, mainly this morning. Cooler with Highs in the upper 50s. Temperature falling into the upper 40s this afternoon. North Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 90 percent.

Tonight 27 Mar Eastern Loudoun

Mostly cloudy in the Evening, then becoming partly cloudy. Scattered Sprinkles. Scattered Flurries after midnight. Much cooler with Lows in the lower 30s. North Winds around 5 Mph, becoming northwest 10 to 15 Mph with Gusts up to 25 Mph after midnight.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Chantilly Temperature Statistics

March Temperature

Washington/Dulles International Airport, DC (2.5 miles)

  • Lowest 18 March, 2026

    23.6 °F

  • Average March

    50.7 °F

  • Highest 11 March, 2026

    86.6 °F

Climate (2021–Present)

Washington/Dulles International Airport, DC (2.5 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    47.5 °F

  • Average 2021–2026

    58.2 °F

  • Average High 2021–2026

    68.5 °F
Get WillyWeather+ to remove ads