Brittany Valley Weather Forecast

    • 30
    • 41

    Decreasing Clouds

    • 36
    • 55

    Partly Sunny

    • 29
    • 44

    Mostly Cloudy

    • 18
    • 41

    Mostly Cloudy

    • 7
    • 27

    Mostly Cloudy

    • 11
    • 25

    Partly Sunny

Today 8 Dec Johnson

Mostly cloudy. Highs around 40. Southeast Winds 5 to 10 Mph, becoming south with Gusts up to 20 Mph this afternoon.

Tonight 8 Dec Johnson

Mostly clear in the Evening, then becoming partly cloudy. Not as cool with Lows in the lower 30s. Southwest Winds 5 to 10 Mph with Gusts up to 25 Mph.

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Brittany Valley Temperature Statistics

December Temperature

Olathe, Johnson County Executive Airport (13.7 miles)

  • Lowest 4 December, 2025

    14 °F

  • Average December

    27.7 °F

  • Highest 5 December, 2025

    46 °F

Climate (2020–Present)

Olathe, Johnson County Executive Airport (13.7 miles)

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  • Average Low 2020–2025

    47.6 °F

  • Average 2020–2025

    57.3 °F

  • Average High 2020–2025

    67.3 °F
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