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    • Today

      Dec 10

      21° /9°F
      Cold; afternoon snow showers
      • Ragweed Pollen
        • Ragweed Pollen
        • Grass Pollen
        • Tree Pollen
        • Mold
        • Dust & Dander
        • Air Quality Index
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
    • Sun

      Dec 11

      26° /21°
      Snow later in the afternoon
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Mon

      Dec 12

      34° /22°
      Occasional snow, 1-3"
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Tue

      Dec 13

      31° /20°
      Mostly cloudy, a bit of snow
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Wed

      Dec 14

      25° /7°
      Rather cloudy
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More

    Day

    21°Hi RealFeel® 11° Precipitation 62%
    Mostly cloudy, brisk and cold; a couple of afternoon snow showers
    • W 13 mph
    • Gusts: 25 mph
    • Max UV Index: 1 (Low)
    • Thunderstorms: 1%
    • Precipitation: 0.01 in
    • Rain: 0 in
    • Snow: 0.1 in
    • Ice: 0 in
    • Hours of Precipitation: 1 hrs
    • Hours of Rain: 0 hrs

    Night

    Lo RealFeel® 9° Precipitation 9%
    Partly cloudy
    • WSW 4 mph
    • Gusts: 10 mph
    • Max UV Index: N/A
    • Thunderstorms: 0%
    • Precipitation: 0 in
    • Rain: 0 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 0 hrs
    • Hours of Rain: 0 hrs

    Lyon Mountain Pollen Levels Dec 10

    • Extreme
    • Very High
    • High
    • Moderate
    • Low
    • Tree Pollen

      Low

    • Ragweed Pollen

      Low

    • Mold

      Low

    • Grass Pollen

      Low

    Temperature History

    more Historical Weather Data >
      Today Normal Record 12/10/2015
    High 21° 36° N/A 57°
    Low 20° N/A 36°

    Sunrise/Sunset

    • Sunrise: 7:23 AM
    • Sunset: 4:15 PM
    • Duration: 8:52 hr

    Moonrise/Moonset

    • Moonrise: 2:14 PM
    • Moonset: 4:05 AM
    • Duration: 13:51 hr
    Astronomy

    Sat. Pollen

    Sat. Dust & Dander

    Sat. Wind Maps