• Today

    Apr 21

    66°Lo 43°

    Mostly sunny

    Moderate indoor dust & dander levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      50 - Moderate
  • Tue

    Apr 22

    69°Lo 42°

    Some sun, then clouds

    Low indoor dust & dander levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      50 - Moderate
    more
  • Wed

    Apr 23

    56°Lo 32°

    Clouds breaking and cooler

    Moderate indoor dust & dander levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      50 - Moderate
    more
  • Thu

    Apr 24

    61°Lo 36°

    Mostly sunny and breezy

    High indoor dust & dander levels
    • Precip
      4%
    • Wind
      Speed
      14 mph
    • Cloud
      Cover
      25%
    more
  • Fri

    Apr 25

    65°Lo 44°

    A shower in the afternoon

    High indoor dust & dander levels
    • Precip
      49%
    • Wind
      Speed
      5 mph
    • Cloud
      Cover
      62%
    more
Next Previous
Hi 66° RealFeel® 70° Precipitation 1%

Day

N

E

S

W

  • S 5 mph
  • Gusts: 10 mph

Mostly sunny

  • Max UV Index: 7 (High)
  • Thunderstorms: 4%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs
Lo 43° RealFeel® 41° Precipitation 6%

Night

N

E

S

W

  • WSW 3 mph
  • Gusts: 7 mph

Mainly clear

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

Blackstone Pollen Levels - April 21

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

    Pollen

    Low

  • Weed

    Pollen

    Low

  • Tree

    Pollen

    Moderate

  • Mold

    Pollen

    Low

Temperature History - Apr 21

more Historical Weather Data >
  Today Normal Record 4/21/2013
High 66° N/A N/A 53°
Low 43° N/A N/A 32°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:57 AM with 13:37 of sunlight, then sets at 7:34 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 1:03 AM with 10:15 of moolight, then sets at 11:18 AM

Top Story

Blackstone Weather Report

Boston: Milder Patriots' Day Follows Easter Cooldown

April 21, 2014; 4:57 AM ET

After taking a tumble Easter Sunday, temperatures will quickly rebound in Boston for Patriots' Day. more >

Is it a Cold or the Flu?

Apr 19, 2014; 5:00 AM ET Symptoms caused by the common cold can often resemble those associated with the influenza virus, so how do you differentiate between the two?

Mon. Pollen

Mon. Dust & Dander

Mon. Wind Maps