Letha Weather Forecast

    • 46
    • 69

    Chance Rain Showers

    • 45
    • 71

    Slight Chance Rain Showers

    • 49
    • 79

    Sunny

    • 56
    • 88

    Mostly Sunny

    • 59
    • 92

    Partly Sunny

    • 58
    • 90

    Partly Sunny

    • 57
    • 90

    Sunny

Today 21 Jun Lower Treasure Valley

Partly cloudy. A chance of rain Showers with a slight chance of Thunderstorms this afternoon. Chance of rain 30 percent. Highs 65 to 70. Northwest Winds 10 to 15 Mph with Gusts to 25 Mph.

Tonight 21 Jun Lower Treasure Valley

Mostly cloudy with a 30 percent chance of rain Showers. Lows 45 to 50. Northwest Winds 10 to 15 Mph with Gusts to 25 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Letha Temperature Statistics

June Temperature

Caldwell - Caldwell Industrial Airport (17.4 miles)

  • Lowest 4 June, 2025

    48 °F

  • Average June

    72.7 °F

  • Highest 9 June, 2025

    97 °F

Climate (2020–Present)

Caldwell - Caldwell Industrial Airport (17.4 miles)

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

  • Average Low 2020–2025

    41.3 °F

  • Average 2020–2025

    52.9 °F

  • Average High 2020–2025

    64.9 °F
Get WillyWeather+ to remove ads