Walla Walla Weather Forecast

    • 45
    • 62

    Mostly Cloudy

    • 47
    • 65

    Partly Sunny

    • 47
    • 69

    Partly Sunny

    • 50
    • 70

    Partly Sunny

    • 51
    • 71

    Partly Sunny

    • 53
    • 75

    Mostly Sunny

Today 21 Sep Foothills of the Blue Mountains of Washington

Mostly cloudy with isolated Showers. Highs 58 to 63. Southwest wind 10 to 15 Mph. Chance of precipitation 20 percent.

Tonight 21 Sep Foothills of the Blue Mountains of Washington

Mostly cloudy. A 20 percent chance of Showers in the evening. Lows 42 to 47. Northwest wind around 5 Mph shifting to the south overnight.

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Walla Walla Temperature Statistics

September Temperature

Pasco, Tri-Cities Airport (39.1 miles)

  • Lowest 16 September, 2017

    39 °F
  • Average September

    69.1 °F
  • Highest 2 September, 2017

    97 °F

Climate (2010–Present)

Pasco, Tri-Cities Airport (39.1 miles)

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  • Average Low 2010–Present

    43.2 °F
  • Average 2010–Present

    56.3 °F
  • Average High 2010–Present

    67.6 °F
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