Star Weather Forecast

    • 42
    • 72

    Mostly Sunny

    • 47
    • 78

    Mostly Sunny

    • 48
    • 81

    Mostly Sunny

    • 48
    • 80

    Mostly Sunny

    • 46
    • 76

    Mostly Sunny

    • 47
    • 80

    Mostly Sunny

Today 14 Sep Upper Treasure Valley

Areas of fog this morning. Sunny. Highs 67 to 72. Northwest Winds 10 to 15 Mph.

Tonight 14 Sep Upper Treasure Valley

Mostly clear. Patchy fog after midnight. Lows 39 to 47. Northwest Winds 10 to 15 Mph in the Evening, shifting to east after midnight.

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Star Temperature Statistics

September Temperature

Caldwell - Caldwell Industrial Airport (7.5 miles)

  • Lowest 8 September, 2026

    45 °F

  • Average September

    64 °F

  • Highest 12 September, 2026

    88 °F

Climate (2021–2026)

Caldwell - Caldwell Industrial Airport (7.5 miles)

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  • Average Low 2021–2026

    42 °F

  • Average 2021–2026

    53.4 °F

  • Average High 2021–2026

    65.3 °F
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