• Today

    Apr 19

    57°Lo 37°

    Sunny and cooler

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

    Apr 20

    53°Lo 49°

    Heavy rain; becoming windier

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

    Apr 21

    68°Lo 42°

    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

    62°Lo 42°

    Mostly cloudy and breezy

    Low ragweed pollen levels
    • Precip
      25%
    • Wind
      Speed
      15 mph
    • Cloud
      Cover
      77%
    more
  • Thu

    Apr 23

    56°Lo 35°

    Mostly cloudy and breezy

    Ragweed Pollen Weather
    • Precip
      17%
    • Wind
      Speed
      14 mph
    • Cloud
      Cover
      85%
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Mon
1am
2am 3am 4am 5am 6am 7am 8am
  1am 2am 3am 4am 5am 6am 7am 8am
Forecast
Cloudy
Cloudy
Cloudy
Cloudy
Mostly Cloudy
Mostly Cloudy
Cloudy
Cloudy
Temp (°F) 40° 39° 38° 37° 37° 38° 40° 43°
RealFeel® 41° 41° 39° 38° 39° 36° 35° 37°
Humidity 70% 74% 77% 80% 80% 80% 77% 72%
   
  1am 2am 3am 4am 5am 6am 7am 8am
Rain
 
1%
 
1%
 
1%
 
1%
 
1%
 
1%
 
4%
 
49%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  1am 2am 3am 4am 5am 6am 7am 8am
Wind (mph) 4 SE 2 E 2 E 4 E 4 E 6 ESE 8 ESE 9 ESE
UV Index 0 0 0 0 0 0 0 0
Cloud Cover 57% 62% 68% 73% 79% 84% 90% 96%
Dew Point 31° 32° 32° 31° 32° 33° 33° 35°
Middle Grid line 45 F Middle Grid line 40 F Middle Grid line 35 F

Temperature History - Apr 20

more Historical Weather Data >
  Today Normal Record 4/20/2014
High 53° 60° N/A 54°
Low 49° 37° N/A 28°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:57 AM with 13:35 of sunlight, then sets at 7:32 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 7:22 AM with 14:29 of moolight, then sets at 9:51 PM

Walpole Weather Report

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

April 19, 2015; 9:24 AM 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