San Mar Weather Forecast

    • 67
    • 87

    Mostly Sunny

    • 72
    • 91

    Mostly Sunny

    • 74
    • 96

    Slight Chance Thunderstorms

    • 73
    • 91

    Chance Thunderstorms

    • 71
    • 89

    Rain Showers Likely

    • 71
    • 90

    Chance Thunderstorms

Today 23 Jul Washington

Patchy fog in the morning. Mostly sunny. Highs in the upper 80s. Southeast Winds 5 to 10 Mph.

Tonight 23 Jul Washington

Mostly clear. Lows in the upper 60s. South Winds 5 to 10 Mph.

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  • Temperature Real-Time

San Mar Temperature Statistics

July Temperature

Hagerstown, Washington County Regional Airport (11.2 miles)

  • Lowest 5 July, 2025

    63.6 °F

  • Average July

    80.6 °F

  • Highest 7 July, 2025

    94.6 °F

Climate (2020–Present)

Hagerstown, Washington County Regional Airport (11.2 miles)

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  • Average Low 2020–2025

    48 °F

  • Average 2020–2025

    56.9 °F

  • Average High 2020–2025

    65.9 °F
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