Long Tom Reservoir Weather Forecast

    • 23
    • 38

    Increasing Clouds

    • 23
    • 40

    Partly Sunny

    • 26
    • 40

    Partly Sunny

    • 27
    • 44

    Partly Sunny

    • 26
    • 43

    Mostly Sunny

    • 24
    • 44

    Mostly Sunny

Today 10 Jan Boise Mountains

Areas of fog this morning. Mostly sunny. Highs 31 to 40.

Tonight 10 Jan Boise Mountains

Partly cloudy. Patchy fog after midnight. Lows 14 to 27.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Long Tom Reservoir Temperature Statistics

January Temperature

Mountain Home Air Force Base (21.7 miles)

  • Lowest 8 January, 2026

    24.8 °F

  • Average January

    40.3 °F

  • Highest 2 January, 2026

    53.1 °F

Climate (2021–Present)

Mountain Home Air Force Base (21.7 miles)

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  • Average Low 2021–2026

    40 °F

  • Average 2021–2026

    52.5 °F

  • Average High 2021–2026

    65.3 °F
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