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    • Today

      Aug 18

      76° /58°F
      Some clouds, then sunshine
      • 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
    • Sat

      Aug 19

      77° /59°
      Low clouds, then sunshine
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Sun

      Aug 20

      75° /59°
      Low clouds, then sun and cool
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Mon

      Aug 21

      73° /58°
      Cool with low clouds breaking
      • Moderate
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Moderate
      • Tree Pollen: Low
      More
    • Tue

      Aug 22

      77° /58°
      Low clouds, then sunshine
      • Moderate
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Moderate
      • Tree Pollen: Low
      More

    Day

    76°Hi RealFeel® 84° Precipitation 0%
    Some clouds, then sunshine
    • Winds from the
    • WSW 9 mph
    • Gusts: 18 mph
    • Max UV Index: 11 (Extreme)
    • Thunderstorms: 0%
    • Precipitation: 0 in
    • Rain: 0 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 0 hrs
    • Hours of Rain: 0 hrs

    Night

    58°Lo RealFeel® 58° Precipitation 0%
    Mainly clear this evening followed by late-night low clouds
    • Winds from the
    • SW 6 mph
    • Gusts: 12 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

    San Luis Obispo Pollen Levels Aug 18

    • 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 8/18/2016
    High 76° 77° 97° (1984) 77°
    Low 58° 55° 48° (1990) 55°

    Sunrise/Sunset

    • Sunrise: 6:24 AM
    • Sunset: 7:48 PM
    • Duration: 13:24 hr

    Moonrise/Moonset

    • Moonrise: 3:03 AM
    • Moonset: 5:31 PM
    • Duration: 14:28 hr
    Astronomy

    Fri. Pollen

    Fri. Dust & Dander

    Fri. Wind Maps