Foster Weather Forecast

    • 59
    • 81

    Mostly Sunny

    • 58
    • 85

    Mostly Sunny

    • 59
    • 87

    Mostly Sunny

    • 65
    • 88

    Partly Sunny

    • 63
    • 85

    Partly Sunny

    • 63
    • 84

    Partly Sunny

    • 62
    • 83

    Slight Chance Thunderstorms

Today 17 Sep Boone

Mostly sunny. Highs around 80. North Winds around 5 Mph.

Tonight 17 Sep Boone

Mostly clear. Lows in the upper 50s. Northeast Winds around 5 Mph, becoming south after midnight.

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Foster Temperature Statistics

September Temperature

Logan County Airport (18 miles)

  • Lowest 8 September, 2025

    48.2 °F

  • Average September

    65.1 °F

  • Highest 5 September, 2025

    82.4 °F

Climate (2020–Present)

Logan County Airport (18 miles)

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  • Average Low 2020–2025

    47.8 °F

  • Average 2020–2025

    56.1 °F

  • Average High 2020–2025

    65 °F
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