Black Canyon Reservoir Weather Forecast

    • 51
    • 90

    Smoke

    • 54
    • 94

    Smoke

    • 58
    • 98

    Smoke

    • 63
    • 105

    Hot

    • 64
    • 106

    Hot

    • 62
    • 103

    Hot

Today 3 Aug Lower Treasure Valley

Sunny, smoke. Highs 83 to 88. Northwest Winds 10 to 15 Mph. Gusts to 30 Mph this morning.

Tonight 3 Aug Lower Treasure Valley

Mostly clear. Smoke. Lows 52 to 57. Northwest Winds 10 to 15 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Black Canyon Reservoir Temperature Statistics

August Temperature

Caldwell - Caldwell Industrial Airport (23 miles)

  • Lowest 1 August, 2026

    62.1 °F

  • Average August

    82.5 °F

  • Highest 1 August, 2026

    100.9 °F

Climate (2021–2026)

Caldwell - Caldwell Industrial Airport (23 miles)

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

  • Average Low 2021–2026

    41.9 °F

  • Average 2021–2026

    53.3 °F

  • Average High 2021–2026

    65.2 °F
Get WillyWeather+ to remove ads