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    • Tonight

      Aug 17

      75° Lo
      Humid with a thunderstorm
      • Ragweed Pollen
        • Ragweed Pollen
        • Grass Pollen
        • Tree Pollen
        • Mold
        • Dust & Dander
        • Air Quality Index
      • Ragweed Pollen
      • Weather
      • Grass Pollen: Moderate
      • Ragweed Pollen: Moderate
      • Tree Pollen: Low
      More
    • Fri

      Aug 18

      90° /69°F
      Showers and a heavier t-storm
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
    • Sat

      Aug 19

      87° /67°
      Periods of clouds and sun
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Sun

      Aug 20

      87° /68°
      Mostly sunny
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Mon

      Aug 21

      87° /71°
      Mostly sunny and humid
      • Moderate
      • ragweed pollen levels
      • Grass Pollen: Moderate
      • Ragweed Pollen: Moderate
      • Tree Pollen: Low
      More

    Day

    90°Hi RealFeel® 109° Precipitation 66%
    Showers and a heavier t-storm; mostly cloudy, humid; storms may bring downpours and damaging winds
    • Winds from the
    • SSW 6 mph
    • Gusts: 8 mph
    • Max UV Index: 9 (Very High)
    • Thunderstorms: 60%
    • Precipitation: 0.76 in
    • Rain: 0.76 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 4 hrs
    • Hours of Rain: 4 hrs

    Night

    69°Lo RealFeel® 72° Precipitation 51%
    A thunderstorm in the evening; otherwise, becoming partly cloudy
    • Winds from the
    • W 5 mph
    • Gusts: 7 mph
    • Max UV Index: N/A
    • Thunderstorms: 77%
    • Precipitation: 0.05 in
    • Rain: 0.05 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 0.5 hrs
    • Hours of Rain: 0.5 hrs

    Lanham 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 90° 87° N/A 88°
    Low 69° 67° N/A 72°

    Sunrise/Sunset

    • Sunrise: 6:23 AM
    • Sunset: 7:59 PM
    • Duration: 13:36 hr

    Moonrise/Moonset

    • Moonrise: 2:52 AM
    • Moonset: 5:37 PM
    • Duration: 14:45 hr
    Astronomy

    Fri. Pollen

    Fri. Dust & Dander

    Fri. Wind Maps