Junction City Weather Forecast

    • 47
    • 70

    Decreasing Clouds

    • 51
    • 71

    Partly Sunny

    • 55
    • 65

    Rain

    • 49
    • 66

    Chance Rain

    • 51
    • 70

    Partly Sunny

    • 54
    • 71

    Chance Rain

Today 18 Sep Lower Chehalis River Valley

Partly sunny in the morning then becoming sunny. Highs in the mid 60s to lower 70s. Light wind becoming northwest to 10 Mph in the afternoon.

Tonight 18 Sep Lower Chehalis River Valley

Mostly clear. Lows in the mid 40s to lower 50s. Northwest wind to 10 Mph in the evening becoming light.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Junction City Temperature Statistics

September Temperature

Hoquiam, Bowerman Airport (6.8 miles)

  • Lowest 15 September, 2025

    44.1 °F

  • Average September

    59.9 °F

  • Highest 2 September, 2025

    73 °F

Climate (2020–Present)

Hoquiam, Bowerman Airport (6.8 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2020–2025

    46.2 °F

  • Average 2020–2025

    52.1 °F

  • Average High 2020–2025

    58.3 °F
Get WillyWeather+ to remove ads