Tetrault Lake Weather Forecast

    • 35
    • 43

    Chance Rain

    • 34
    • 45

    Increasing Clouds

    • 36
    • 46

    Chance Rain

    • 35
    • 45

    Slight Chance Rain

    • 35
    • 45

    Mostly Cloudy

    • 33
    • 48

    Mostly Cloudy

    • 32
    • 47

    Partly Sunny

Today 30 Jan Kootenai/Cabinet Region

Rain likely and a slight chance of light freezing rain early in the Morning, then Areas of rain in the late morning and afternoon. Areas of fog in the morning. Patchy fog early in the afternoon. Chance of precipitation 70 percent. Highs in the upper 30s to mid 40s.

Tonight 30 Jan Kootenai/Cabinet Region

Mostly cloudy until early morning then becoming partly cloudy. Patchy fog early in the evening. Patchy fog late in the night. A 50 percent chance of Areas of rain until early morning. Lows in the 30s.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Tetrault Lake Temperature Statistics

January Temperature

Boundary County Airport (55.3 miles)

  • Lowest 26 January, 2026

    12.2 °F

  • Average January

    30.3 °F

  • Highest 12 January, 2026

    44.6 °F

Climate (2021–Present)

Boundary County Airport (55.3 miles)

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  • Average Low 2021–2026

    37.6 °F

  • Average 2021–2026

    47.2 °F

  • Average High 2021–2026

    56.7 °F
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