Celebration Park Weather Forecast

    • 53
    • 83

    Slight Chance Thunderstorms

    • 53
    • 75

    Slight Chance Thunderstorms

    • 52
    • 77

    Mostly Sunny

    • 54
    • 81

    Sunny

    • 55
    • 82

    Mostly Sunny

    • 54
    • 82

    Mostly Sunny

    • 54
    • 80

    Mostly Sunny

Today 17 Sep Lower Treasure Valley

Sunny. Areas of fog this morning. A chance of Showers and Thunderstorms, mainly this morning. Chance of rain 30 percent. Highs 78 to 83. Light Winds this Morning, becoming southwest 10 to 15 Mph this afternoon.

Tonight 17 Sep Lower Treasure Valley

Increasing Clouds. Lows 50 to 55. West Winds up to 10 Mph. Gusts to 20 Mph this evening.

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Celebration Park Temperature Statistics

September Temperature

Nampa Municipal Airport (19.3 miles)

  • Lowest 15 September, 2026

    42.8 °F

  • Average September

    63.3 °F

  • Highest 12 September, 2026

    89.6 °F

Climate (2021–2026)

Nampa Municipal Airport (19.3 miles)

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  • Average Low 2021–2026

    41.8 °F

  • Average 2021–2026

    53.5 °F

  • Average High 2021–2026

    65.3 °F
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