McHenry Weather Forecast

    • 24
    • 48

    Chance Snow

    • 22
    • 33

    Wintry Mix Likely

    • 23
    • 44

    Mostly Cloudy

    • 25
    • 45

    Slight Chance Rain/Snow

    • 16
    • 37

    Partly Sunny

    • 27
    • 39

    Partly Sunny

    • 33
    • 47

    Mostly Cloudy

Today 4 Dec Spotsylvania

Mostly sunny. Highs in the upper 40s. North Winds 5 to 10 Mph.

Tonight 4 Dec Spotsylvania

Mostly cloudy. Snow after midnight. Snow accumulation around an inch. Lows in the mid 20s. Northeast Winds 5 to 10 Mph. Chance of snow 90 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

McHenry Temperature Statistics

December Temperature

Lake Anna Airport (14.3 miles)

  • Lowest 1 December, 2025

    29.3 °F

  • Average December

    35.7 °F

  • Highest 1 December, 2025

    44.2 °F

Climate (2020–Present)

Lake Anna Airport (14.3 miles)

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  • Average Low 2020–2025

    48.3 °F

  • Average 2020–2025

    58.4 °F

  • Average High 2020–2025

    69.2 °F
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