Sullivan Lake State Airport Weather Forecast

    • 35
    • 44

    Rain

    • 31
    • 45

    Chance Rain/Snow

    • 36
    • 45

    Rain Likely

    • 40
    • 47

    Rain Likely

    • 35
    • 49

    Rain Likely

    • 26
    • 43

    Snow Likely

    • 26
    • 39

    Chance Snow

Today 4 Mar Northeast Mountains

Patchy fog in the morning. Rain and mountain snow. Mountain snow accumulation up to 2 Inches. Snow level 5500 feet. Highs in the mid to upper 40s. Chance of precipitation near 100 percent.

Tonight 4 Mar Northeast Mountains

Rain and mountain snow in the Evening, then a chance of rain and mountain snow overnight. Mountain snow may be heavy at Times in the evening. Mountain snow accumulation up to 1 inch. Snow level 5000 feet. Lows in the 30s. Chance of precipitation near 100 percent.

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Sullivan Lake State Airport Temperature Statistics

March Temperature

Boundary County Airport (45.4 miles)

  • Lowest 2 March, 2026

    23 °F

  • Average March

    36.5 °F

  • Highest 2 March, 2026

    55.4 °F

Climate (2021–Present)

Boundary County Airport (45.4 miles)

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  • Average Low 2021–2026

    37.8 °F

  • Average 2021–2026

    47.3 °F

  • Average High 2021–2026

    56.8 °F
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