Alder Lake Weather Forecast

    • 26
    • 39

    Rain/Snow

    • 25
    • 34

    Wintry Mix

    • 27
    • 33

    Wintry Mix

    • 20
    • 33

    Chance Snow

    • 18
    • 28

    Chance Snow

    • 7
    • 27

    Chance Snow

Today 18 Feb Western Ulster

Rain. Near steady temperature in the upper 30s. East Winds around 5 Mph. Chance of rain near 100 percent.

Tonight 18 Feb Western Ulster

Cloudy with a chance of freezing rain. Rain with possible snow and sleet likely in the Evening, then a chance of snow after midnight. Little or no snow and sleet accumulation. Ice accumulation around a trace. Cold with Lows in the mid 20s. Northeast Winds around 5 Mph. Chance of precipitation 80 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Alder Lake Temperature Statistics

February Temperature

Monticello, Sullivan County International Airport (24.9 miles)

  • Lowest 8 February, 2026

    -7.1 °F

  • Average February

    18.6 °F

  • Highest 14 February, 2026

    36 °F

Climate (2021–Present)

Monticello, Sullivan County International Airport (24.9 miles)

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  • Average Low 2021–2026

    36.3 °F

  • Average 2021–2026

    45.6 °F

  • Average High 2021–2026

    55 °F
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