McHenry Weather Forecast

    • 12
    • 32

    Sunny

    • 31
    • 41

    Mostly Sunny

    • 25
    • 52

    Partly Sunny

    • 12
    • 42

    Mostly Cloudy

    • 12
    • 21

    Snow Likely

    • 8
    • 25

    Chance Snow

Today 20 Jan Spotsylvania

Sunny. Highs in the lower 30s. West Winds 5 to 10 Mph.

Tonight 20 Jan Spotsylvania

Clear, cold with Lows around 12. North Winds around 5 Mph in the Evening, becoming light and variable.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

McHenry Temperature Statistics

January Temperature

Lake Anna Airport (14.3 miles)

  • Lowest 16 January, 2026

    16.9 °F

  • Average January

    39.4 °F

  • Highest 7 January, 2026

    68 °F

Climate (2021–Present)

Lake Anna Airport (14.3 miles)

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  • Average Low 2021–2026

    48.2 °F

  • Average 2021–2026

    58.4 °F

  • Average High 2021–2026

    69.2 °F
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