Heritage Weather Forecast

    • 36
    • 51

    Dense Fog

    • 36
    • 51

    Mostly Sunny

    • 36
    • 52

    Mostly Sunny

    • 35
    • 51

    Mostly Sunny

    • 36
    • 50

    Partly Sunny

    • 37
    • 49

    Mostly Cloudy

Today 15 Jan Lowlands of Western Skagit and Northwestern Snohomish Counties

Mostly cloudy in the morning then becoming mostly sunny. Patchy dense fog until late afternoon. Highs near 50. Light wind becoming northwest to 10 Mph in the afternoon.

Tonight 15 Jan Lowlands of Western Skagit and Northwestern Snohomish Counties

Mostly clear. Patchy fog. Lows in the mid 30s to lower 40s. North wind to 10 Mph in the evening becoming light.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Heritage Temperature Statistics

January Temperature

Arlington Municipal Airport (10.6 miles)

  • Lowest 1 January, 2026

    26.6 °F

  • Average January

    43.8 °F

  • Highest 12 January, 2026

    57 °F

Climate (2021–Present)

Arlington Municipal Airport (10.6 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    42.5 °F

  • Average 2021–2026

    50.7 °F

  • Average High 2021–2026

    59.8 °F
Get WillyWeather+ to remove ads