• Tonight

    Feb 11

    Lo 1°

    Clouds breaking; colder

    Ragweed Pollen Weather
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
  • Fri

    Feb 12

    23°Lo 7°

    Sun giving way to clouds

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
  • Sat

    Feb 13

    13°Lo -7°

    Cloudy, a snow shower; windy

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
  • Sun

    Feb 14

    11°Lo -9°

    Sunshine and bitterly cold

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
  • Mon

    Feb 15

    23°Lo 10°

    Not as cold

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Fri
4am
5am 6am 7am 8am 9am 10am 11am
  4am 5am 6am 7am 8am 9am 10am 11am
Forecast
Mostly Clear
Mostly Clear
Mostly Clear
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Temp (°F) 10° 14° 17°
RealFeel® 13° 17° 20°
Humidity 65% 64% 65% 77% 64% 58% 55% 54%
   
  4am 5am 6am 7am 8am 9am 10am 11am
Rain
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  4am 5am 6am 7am 8am 9am 10am 11am
Wind (mph) 4 WNW 4 W 2 W 2 WSW 4 WSW 5 WSW 5 SW 6 SW
UV Index 0 0 0 0 0 1 2 2
Cloud Cover 26% 26% 26% 25% 25% 25% 25% 25%
Dew Point -3° -5° -6° -5° -4° -2°
Middle Grid line 20 F Middle Grid line 15 F Middle Grid line 10 F Middle Grid line 5 F Middle Grid line 0 F

Temperature History - Feb 12

more Historical Weather Data >
  Today Normal Record 2/12/2015
High 23° 35° N/A 25°
Low 11° N/A

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:51 AM with 10:26 of sunlight, then sets at 5:17 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 9:11 AM with 13:11 of moolight, then sets at 10:22 PM

Winchester Weather Report

Boston: Polar vortex to smack region during Valentine's Day weekend

February 11, 2016; 4:32 PM ET

The coldest air of the winter and perhaps during all of last winter will plunge across the Boston area during Valentine's Day weekend. more >

Fri. Pollen

Fri. Dust & Dander

Fri. Wind Maps