Three Island State Park Weather Forecast

    • 31
    • 47

    Rain/Snow Likely

    • 36
    • 50

    Rain/Snow Likely

    • 41
    • 62

    Rain Likely

    • 33
    • 54

    Rain Showers

    • 28
    • 50

    Chance Rain Showers

    • 35
    • 54

    Mostly Cloudy

Today 14 Mar Upper Treasure Valley

Partly sunny this Morning, then mostly cloudy with isolated rain and snow Showers this afternoon. Chance of precipitation 20 percent. Highs 44 to 49. Light Winds this Morning, becoming south 10 to 15 Mph this afternoon.

Tonight 14 Mar Upper Treasure Valley

Mostly cloudy with a chance of rain and snow. Chance of precipitation 30 percent. Lows 30 to 35. Southeast Winds 10 to 15 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Three Island State Park Temperature Statistics

March Temperature

Mountain Home Air Force Base (28.6 miles)

  • Lowest 8 March, 2025

    23.9 °F

  • Average March

    43.9 °F

  • Highest 11 March, 2025

    63.1 °F

Climate (2020–Present)

Mountain Home Air Force Base (28.6 miles)

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  • Average Low 2020–2025

    39.5 °F

  • Average 2020–2025

    52.1 °F

  • Average High 2020–2025

    64.7 °F
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