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    • Today

      Aug 20

      86° /68°
      Partly sunny
      • Ragweed Pollen
        • Ragweed Pollen
        • Grass Pollen
        • Tree Pollen
        • Mold
        • Dust & Dander
        • Air Quality Index
      • High
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: High
      • Tree Pollen: Low
      More
    • Mon

      Aug 21

      83° /68°F
      Heavy rain and a thunderstorm
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
    • Tue

      Aug 22

      79° /55°
      A thunderstorm in spots
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Wed

      Aug 23

      73° /52°
      Sunny and pleasant
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Thu

      Aug 24

      73° /50°
      Mostly sunny and pleasant
      • Moderate
      • ragweed pollen levels
      • Grass Pollen: Moderate
      • Ragweed Pollen: Moderate
      • Tree Pollen: Low
      More

    Day

    83°Hi RealFeel® 91° Precipitation 61%
    Rain, some heavy, and a thunderstorm in the morning; storms may bring downpours and damaging winds
    • Winds from the
    • SSW 9 mph
    • Gusts: 13 mph
    • Max UV Index: 10 (Extreme)
    • Thunderstorms: 90%
    • Precipitation: 0.4 in
    • Rain: 0.4 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 3 hrs
    • Hours of Rain: 3 hrs

    Night

    68°Lo RealFeel® 65° Precipitation 66%
    A couple of heavy thunderstorms; cloudy, warm and muggy; thunderstorms may be severe
    • Winds from the
    • WSW 7 mph
    • Gusts: 12 mph
    • Max UV Index: N/A
    • Thunderstorms: 90%
    • Precipitation: 0.86 in
    • Rain: 0.86 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 4 hrs
    • Hours of Rain: 4 hrs

    Janesville Pollen Levels Aug 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 8/21/2016
    High 83° 81° N/A 73°
    Low 68° 59° N/A 55°

    Sunrise/Sunset

    • Sunrise: 6:09 AM
    • Sunset: 7:49 PM
    • Duration: 13:40 hr

    Moonrise/Moonset

    • Moonrise: 5:53 AM
    • Moonset: 7:55 PM
    • Duration: 14:02 hr
    Astronomy

    Mon. Pollen

    Mon. Dust & Dander

    Mon. Wind Maps