Junction City Weather Forecast

    • 41
    • 56

    Chance Thunderstorms

    • 46
    • 64

    Increasing Clouds

    • 47
    • 64

    Partly Sunny

    • 45
    • 65

    Mostly Cloudy

    • 47
    • 69

    Partly Sunny

    • 48
    • 69

    Partly Sunny

    • 47
    • 69

    Partly Sunny

Today 16 May Lower Chehalis River Valley

Mostly cloudy with a chance of Showers in the Morning, then partly sunny with a chance of Showers and a slight chance of Thunderstorms in the afternoon. Highs in the 50s. West wind 10 to 20 Mph. Gusts to 30 Mph in the afternoon.

Tonight 16 May Lower Chehalis River Valley

Mostly cloudy with a slight chance of rain in the Evening, then partly cloudy after midnight. Lows in the mid 30s to lower 40s. West wind 10 to 15 Mph becoming northwest after midnight. Gusts to 25 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Junction City Temperature Statistics

May Temperature

Hoquiam, Bowerman Airport (6.8 miles)

  • Lowest 7 May, 2026

    48.7 °F

  • Average May

    57.5 °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

    52.4 °F

  • Average High 2021–2026

    58.7 °F
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