Colchester Weather Forecast

    • 54
    • 84

    Rain Showers Likely

    • 44
    • 68

    Chance Rain Showers

    • 52
    • 72

    Mostly Sunny

    • 54
    • 74

    Rain Showers

    • 52
    • 70

    Mostly Sunny

    • 56
    • 74

    Partly Sunny

Today 10 May Fairfax

Numerous Showers and scattered Thunderstorms. Highs in the lower 80s. Southwest Winds around 10 Mph. Chance of rain 70 percent.

Tonight 10 May Fairfax

Mostly cloudy. Numerous Showers and scattered Thunderstorms in the Evening, then a slight chance of Showers after midnight. Lows in the lower 50s. North Winds 5 to 10 Mph. Chance of rain 70 percent.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Colchester Temperature Statistics

May Temperature

Fort Belvoir (3.7 miles)

  • Lowest 1 May, 2026

    37.4 °F

  • Average May

    59.2 °F

  • Highest 5 May, 2026

    85.3 °F

Climate (2021–Present)

Fort Belvoir (3.7 miles)

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

  • Average Low 2021–2026

    47.7 °F

  • Average 2021–2026

    58 °F

  • Average High 2021–2026

    68.3 °F
Get WillyWeather+ to remove ads