Lorton Weather Forecast

    • 47
    • 56

    Rain

    • 28
    • 60

    Rain Likely

    • 38
    • 47

    Partly Sunny

    • 25
    • 52

    Mostly Sunny

    • 29
    • 40

    Mostly Cloudy

    • 38
    • 46

    Mostly Cloudy

Today 18 Dec Fairfax

Mostly cloudy. Highs in the mid 50s. South Winds 5 to 10 Mph.

Tonight 18 Dec Fairfax

Rain likely in the Evening, then rain after midnight. Lows in the upper 40s. Temperature rising into the upper 50s after midnight. Southeast Winds 15 to 20 Mph with Gusts up to 30 Mph. Chance of rain near 100 percent.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Lorton Temperature Statistics

December Temperature

Fort Belvoir (2.5 miles)

  • Lowest 16 December, 2025

    17.1 °F

  • Average December

    33.4 °F

  • Highest 4 December, 2025

    47.5 °F

Climate (2020–Present)

Fort Belvoir (2.5 miles)

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

  • Average Low 2020–2025

    47.8 °F

  • Average 2020–2025

    58 °F

  • Average High 2020–2025

    68.2 °F
Get WillyWeather+ to remove ads