Fallston Weather Forecast

    • 65
    • 81

    Rain Showers Likely

    • 60
    • 74

    Mostly Cloudy

    • 60
    • 80

    Mostly Sunny

    • 66
    • 79

    Chance Rain Showers

    • 64
    • 80

    Chance Rain Showers

    • 59
    • 79

    Slight Chance Thunderstorms

Today 20 Aug Northwest Harford

Mostly cloudy. Patchy fog in the morning. Patchy drizzle in the Morning, then Showers likely with a chance of Thunderstorms in the afternoon. Highs in the lower 80s. East Winds around 5 Mph. Chance of rain 60 percent.

Tonight 20 Aug Northwest Harford

Mostly cloudy. Showers likely with a chance of Thunderstorms in the Evening, then a chance of Showers with a slight chance of Thunderstorms after midnight. Lows in the mid 60s. East Winds 5 to 10 Mph. Chance of rain 60 percent.

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Fallston Temperature Statistics

August Temperature

Baltimore / Martin (12.4 miles)

  • Lowest 10 August, 2025

    59.2 °F

  • Average August

    74.6 °F

  • Highest 15 August, 2025

    91.4 °F

Climate (2020–Present)

Baltimore / Martin (12.4 miles)

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  • Average Low 2020–2025

    48.7 °F

  • Average 2020–2025

    55.6 °F

  • Average High 2020–2025

    64.9 °F
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