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    • Early AM

      May 21

      68° Lo
      Partly to mostly cloudy
      • Ragweed Pollen
        • Ragweed Pollen
        • Grass Pollen
        • Tree Pollen
        • Mold
        • Dust & Dander
        • Air Quality Index
      • Ragweed Pollen
      • Weather
      • Grass Pollen: Moderate
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Today

      May 21

      86° /69°F
      A p.m. shower or thunderstorm
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
    • Tue

      May 22

      80° /69°
      A thunderstorm in the area
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Wed

      May 23

      85° /69°
      A p.m. shower or thunderstorm
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Thu

      May 24

      84° /69°
      A shower and t-storm around
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More

    Day

    86°Hi RealFeel® 92° Precipitation 55%
    Times of clouds and sun, humid; an afternoon shower or thunderstorm
    • Winds from the
    • S 6 mph
    • Gusts: 8 mph
    • Max UV Index: 8 (Very High)
    • Thunderstorms: 40%
    • Precipitation: 0.1 in
    • Rain: 0.1 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 1 hrs
    • Hours of Rain: 1 hrs

    Night

    69°Lo RealFeel® 68° Precipitation 62%
    Mostly cloudy, a couple of showers and a thunderstorm, mainly early; warm and humid
    • Winds from the
    • S 5 mph
    • Gusts: 7 mph
    • Max UV Index: N/A
    • Thunderstorms: 40%
    • Precipitation: 0.18 in
    • Rain: 0.18 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 3 hrs
    • Hours of Rain: 3 hrs

    Irmo Pollen Levels May 21

    • 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 5/21/2017
    High 86° 85° 98° (1941) 88°
    Low 69° 61° 42° (1894) 73°

    Sunrise/Sunset

    • Sunrise: 6:20 AM
    • Sunset: 8:23 PM
    • Duration: 14:03 hr

    Moonrise/Moonset

    • Moonrise: 11:31 AM
    • Moonset: 1:38 AM
    • Duration: 14:07 hr
    Astronomy

    Mon. Pollen

    Mon. Dust & Dander

    Mon. Wind Maps