St Helens Weather Forecast

    • 59
    • 91

    Mostly Sunny

    • 62
    • 91

    Mostly Sunny

    • 65
    • 91

    Slight Chance Thunderstorms

    • 66
    • 89

    Slight Chance Thunderstorms

    • 69
    • 89

    Mostly Sunny

    • 66
    • 88

    Chance Rain Showers

Today 15 Sep Lee

Areas of dense valley fog early. Sunny, hot with Highs around 90. Light and variable Winds.

Tonight 15 Sep Lee

Clear. Patchy valley fog late. Humid with Lows in the lower 60s Valleys and in the upper 60s Ridges. Light and variable Winds.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

St Helens Temperature Statistics

September Temperature

Jackson, Carroll Airport (18 miles)

  • Lowest 7 September, 2026

    62.7 °F

  • Average September

    77.6 °F

  • Highest 4 September, 2026

    94.6 °F

Climate (2021–2026)

Jackson, Carroll Airport (18 miles)

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

  • Average Low 2021–2026

    49.8 °F

  • Average 2021–2026

    58.4 °F

  • Average High 2021–2026

    68 °F
Get WillyWeather+ to remove ads