Leslie Groves Park Weather Forecast

    • 59
    • 85

    Sunny

    • 58
    • 86

    Partly Sunny

    • 54
    • 81

    Partly Sunny

    • 54
    • 76

    Partly Sunny

    • 54
    • 74

    Chance Rain Showers

    • 49
    • 69

    Slight Chance Rain Showers

Today 20 Sep Lower Columbia Basin of Washington

Sunny. Highs in the lower to mid 80s. Light wind.

Tonight 20 Sep Lower Columbia Basin of Washington

Clear. Lows in the 50s. Light wind.

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  • Temperature Real-Time

Leslie Groves Park Temperature Statistics

September Temperature

Tri-Cities Airport (6.8 miles)

  • Lowest 8 September, 2026

    44.7 °F

  • Average September

    64.8 °F

  • Highest 10 September, 2026

    90.6 °F

Climate (2021–2026)

Tri-Cities Airport (6.8 miles)

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  • Average Low 2021–2026

    42.8 °F

  • Average 2021–2026

    55.4 °F

  • Average High 2021–2026

    67.9 °F
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