Grand Lake Stream Weather Forecast

    • 56
    • 76

    Rain Showers

    • 41
    • 67

    Mostly Sunny

    • 37
    • 63

    Sunny

    • 47
    • 68

    Mostly Sunny

    • 53
    • 72

    Partly Sunny

    • 53
    • 76

    Partly Sunny

Today 18 Sep Central Washington

Patchy fog this morning. Mostly cloudy with isolated Showers this Morning, then partly sunny this afternoon. Highs in the mid 70s. Southwest Winds 5 to 10 Mph. Chance of rain 20 percent.

Tonight 18 Sep Central Washington

Partly cloudy. Patchy fog. Lows in the mid 50s. Southwest Winds around 5 Mph, becoming west around 5 Mph after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Grand Lake Stream Temperature Statistics

September Temperature

Millinocket, Millinocket Municipal Airport (54.7 miles)

  • Lowest 9 September, 2025

    39.9 °F

  • Average September

    59.3 °F

  • Highest 1 September, 2025

    79 °F

Climate (2020–Present)

Millinocket, Millinocket Municipal Airport (54.7 miles)

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  • Average Low 2020–2025

    36.2 °F

  • Average 2020–2025

    45.7 °F

  • Average High 2020–2025

    55.1 °F
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