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    • Tonight

      Jan 17

      22° Lo
      Partly cloudy and very cold
      • Ragweed Pollen
        • Ragweed Pollen
        • Grass Pollen
        • Tree Pollen
        • Mold
        • Dust & Dander
        • Air Quality Index
      • Ragweed Pollen
      • Weather
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Thu

      Jan 18

      43° /34°F
      Turning cloudy and cold
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
    • Fri

      Jan 19

      54° /52°
      Cloudy, a shower in the p.m.
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Sat

      Jan 20

      70° /62°
      Clouds and sun with a shower
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Sun

      Jan 21

      74° /49°
      Mostly cloudy with a t-storm
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More

    Day

    43°Hi RealFeel® 44° Precipitation 15%
    Some sun, then turning cloudy and cold
    • Winds from the
    • ENE 5 mph
    • Gusts: 8 mph
    • Max UV Index: 2 (Low)
    • Thunderstorms: 1%
    • Precipitation: 0 in
    • Rain: 0 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 0 hrs
    • Hours of Rain: 0 hrs

    Night

    34°Lo RealFeel® 33° Precipitation 56%
    Chilly with plenty of clouds; a passing shower late
    • Winds from the
    • E 4 mph
    • Gusts: 7 mph
    • Max UV Index: N/A
    • Thunderstorms: 20%
    • Precipitation: 0.04 in
    • Rain: 0.04 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 0.5 hrs
    • Hours of Rain: 0.5 hrs

    Katy Pollen Levels Jan 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 1/18/2017
    High 43° 63° N/A 59°
    Low 34° 43° N/A 54°

    Sunrise/Sunset

    • Sunrise: 7:19 AM
    • Sunset: 5:49 PM
    • Duration: 10:30 hr

    Moonrise/Moonset

    • Moonrise: 8:20 AM
    • Moonset: 7:25 PM
    • Duration: 11:05 hr
    Astronomy

    Thu. Pollen

    Thu. Dust & Dander

    Thu. Wind Maps