• Tonight

    Apr 19

    Lo 35°

    Partly cloudy

    Ragweed Pollen Weather
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      350 - High
    more
  • Mon

    Apr 20

    49°Lo 43°

    Becoming windier with rain

    Low ragweed pollen levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      350 - High
  • Tue

    Apr 21

    58°Lo 35°

    Warmer with a shower or two

    Low ragweed pollen levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      350 - High
    more
  • Wed

    Apr 22

    56°Lo 33°

    A shower in the afternoon

    Low ragweed pollen levels
    • Precip
      40%
    • Wind
      Speed
      14 mph
    • Cloud
      Cover
      52%
    more
  • Thu

    Apr 23

    49°Lo 30°

    Cloudy with a shower or two

    Ragweed Pollen Weather
    • Precip
      55%
    • Wind
      Speed
      14 mph
    • Cloud
      Cover
      95%
    more
Next Previous
Hi 49° RealFeel® 38° Precipitation 70%

Day

N

E

S

W

  • ESE 15 mph
  • Gusts: 33 mph

Increasingly windy with periods of rain; colder

  • Max UV Index: 2 (Low)
  • Thunderstorms: 5%
  • Precipitation: 0.5 in
  • Rain: 0.5 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 8 hrs
  • Hours of Rain: 8 hrs
Lo 43° RealFeel® 34° Precipitation 67%

Night

N

E

S

W

  • S 8 mph
  • Gusts: 15 mph

Periods of rain

  • Max UV Index: N/A
  • Thunderstorms: 24%
  • Precipitation: 0.34 in
  • Rain: 0.34 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 6 hrs
  • Hours of Rain: 6 hrs

Winchester Pollen Levels - April 20

  • Extreme
  • Very High
  • High
  • Moderate
  • Low
  • Grass

    Pollen

    Low

  • Weed

    Pollen

    Low

  • Tree

    Pollen

    High

  • Mold

    Pollen

    Low

Temperature History - Apr 20

more Historical Weather Data >
  Today Normal Record 4/20/2014
High 49° N/A N/A 61°
Low 43° N/A N/A 25°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:00 AM with 13:37 of sunlight, then sets at 7:37 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 7:26 AM with 14:32 of moolight, then sets at 9:58 PM

Winchester Weather Report

2015 Boston Marathon Forecast: Rain and Wind in Store for Runners

April 19, 2015; 5:34 PM ET

The 119th Boston Marathon will take place on Monday, April 20, and runners set to take on the historic course will face cool and rainy conditions. more >

Mon. Pollen

Mon. Dust & Dander

Mon. Wind Maps