• Today

    Sep 21

    77°Lo 58°

    A passing shower or two

    Low ragweed pollen levels
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      5 - Low
    • Tree
      Pollen
      0 - Low
  • Mon

    Sep 22

    70°Lo 44°

    Partly sunny and breezy

    Low ragweed pollen levels
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      5 - Low
    • Tree
      Pollen
      0 - Low
    more
  • Tue

    Sep 23

    68°Lo 46°

    Mostly sunny and delightful

    Low ragweed pollen levels
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      5 - Low
    • Tree
      Pollen
      0 - Low
    more
  • Wed

    Sep 24

    68°Lo 43°

    A full day of sunshine

    Low ragweed pollen levels
    • Precip
      4%
    • Wind
      Speed
      4 mph
    • Cloud
      Cover
      0%
    more
  • Thu

    Sep 25

    71°Lo 46°

    A full day of sunshine

    Ragweed Pollen Weather
    • Precip
      7%
    • Wind
      Speed
      3 mph
    • Cloud
      Cover
      0%
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Sun
9am
10am 11am 12pm 1pm 2pm 3pm 4pm
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Forecast
Partly Cloudy
Mostly Cloudy
Mostly Cloudy
Mostly Cloudy
Showers
Cloudy
Cloudy
Showers
Temp (°F) 67° 70° 72° 74° 76° 76° 77° 75°
RealFeel® 65° 69° 71° 75° 76° 77° 78° 75°
Humidity 85% 79% 78% 75% 72% 70% 69% 70%
   
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Rain
 
34%
 
37%
 
43%
 
47%
 
51%
 
43%
 
39%
 
43%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Wind (mph) 6 SSW 7 S 8 S 7 S 6 S 6 S 5 S 4 SSE
UV Index 1 2 2 2 2 2 1 1
Cloud Cover 72% 76% 88% 89% 88% 92% 91% 92%
Dew Point 62° 63° 65° 66° 66° 66° 66° 65°
Middle Grid line 80 F Middle Grid line 75 F Middle Grid line 70 F Middle Grid line 65 F

Temperature History - Sep 21

more Historical Weather Data >
  Today Normal Record 9/21/2013
High 77° N/A N/A 73°
Low 58° N/A N/A 52°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:32 AM with 12:14 of sunlight, then sets at 6:46 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 4:02 AM with 13:19 of moolight, then sets at 5:21 PM

Top Story

Blackstone Weather Report

Boston: September Temperature Roller Coaster to Continue

September 21, 2014; 4:42 AM ET

In keeping with tradition, temperatures will continue their up-and-down cycle during the second half of September around Boston. more >

Sun. Pollen

Sun. Dust & Dander

Sun. Wind Maps