Junction City Weather Forecast

    • 49
    • 73

    Mostly Cloudy

    • 48
    • 65

    Mostly Cloudy

    • 49
    • 76

    Partly Sunny

    • 52
    • 80

    Partly Sunny

    • 50
    • 70

    Partly Sunny

Today 9 May Lower Chehalis River Valley

Mostly cloudy until late afternoon then becoming mostly sunny. Highs in the 70s. Light wind becoming northeast to 10 Mph in the afternoon.

Tonight 9 May Lower Chehalis River Valley

Mostly cloudy. Lows near 50. Northwest wind to 10 Mph in the evening becoming light.

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Junction City Temperature Statistics

May Temperature

Hoquiam, Bowerman Airport (6.8 miles)

  • Lowest 7 May, 2026

    48.9 °F

  • Average May

    57.4 °F

  • Highest 3 May, 2026

    82.7 °F

Climate (2021–Present)

Hoquiam, Bowerman Airport (6.8 miles)

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  • Average Low 2021–2026

    46.4 °F

  • Average 2021–2026

    52.3 °F

  • Average High 2021–2026

    58.6 °F
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