Star Weather Forecast

    • 62
    • 96

    Areas Smoke

    • 62
    • 94

    Partly Sunny

    • 62
    • 92

    Partly Sunny

    • 58
    • 85

    Chance Rain Showers

    • 56
    • 87

    Slight Chance Rain Showers

    • 54
    • 83

    Partly Sunny

    • 51
    • 74

    Slight Chance Rain Showers

Today 3 Sep Upper Treasure Valley

Mostly sunny. Highs 94 to 99. Light Winds this Morning, becoming northwest around 10 Mph this afternoon.

Tonight 3 Sep Upper Treasure Valley

Partly cloudy. Areas of smoke. Lows 60 to 67. Northwest Winds up to 10 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Star Temperature Statistics

September Temperature

Caldwell - Caldwell Industrial Airport (7.5 miles)

  • Lowest 1 September, 2025

    62.1 °F

  • Average September

    79.4 °F

  • Highest 1 September, 2025

    97 °F

Climate (2020–Present)

Caldwell - Caldwell Industrial Airport (7.5 miles)

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

  • Average Low 2020–2025

    41.4 °F

  • Average 2020–2025

    52.9 °F

  • Average High 2020–2025

    65 °F
Get WillyWeather+ to remove ads