Jaars Weather Forecast

    • 67
    • 91

    Chance Thunderstorms

    • 60
    • 80

    Chance Rain Showers

    • 58
    • 80

    Partly Sunny

    • 61
    • 78

    Mostly Cloudy

    • 61
    • 77

    Partly Sunny

    • 62
    • 82

    Mostly Sunny

Today 6 Sep Union

Mostly sunny. Humid with Highs in the lower 90s. Southwest Winds 5 to 10 Mph.

Tonight 6 Sep Union

Mostly cloudy. A chance of Showers and Thunderstorms in the evening. Patchy fog after midnight. Lows in the upper 60s. Northwest Winds 5 to 10 Mph. Chance of rain 30 percent.

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Jaars Temperature Statistics

September Temperature

Lancaster County-mc Whirter Field (11.2 miles)

  • Lowest 1 September, 2025

    55.4 °F

  • Average September

    68.3 °F

  • Highest 3 September, 2025

    82.4 °F

Climate (2020–Present)

Lancaster County-mc Whirter Field (11.2 miles)

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  • Average Low 2020–2025

    52 °F

  • Average 2020–2025

    62.3 °F

  • Average High 2020–2025

    73.7 °F
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