• Tonight

    May 31

    Lo 60°

    Clear and mild

    Ragweed Pollen Weather
    • Grass
      Pollen
      3 - Moderate
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      5 - High
  • Wed

    Jun 1

    75°Lo 53°

    Sunny and not as warm

    Low ragweed pollen levels
    • Grass
      Pollen
      3 - Moderate
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      5 - High
    more
  • Thu

    Jun 2

    69°Lo 54°

    Sun and some clouds

    Low ragweed pollen levels
    • Grass
      Pollen
      3 - Moderate
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      5 - High
    more
  • Fri

    Jun 3

    75°Lo 59°

    A couple of thunderstorms

    Low ragweed pollen levels
    • Grass
      Pollen
      3 - Moderate
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      5 - High
    more
  • Sat

    Jun 4

    81°Lo 60°

    Some sun; pleasant and warmer

    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 >
  Tue
8am
9am
  8am 9am
Forecast
Partly Sunny
Partly Cloudy
Temp (°F) 70° 74°
RealFeel® 70° 75°
Humidity 62% 52%
   
  8am 9am
Rain
 
0%
 
0%
Snow
 
0%
 
0%
Ice
 
0%
 
0%
   
  8am 9am
Wind (mph) 6 WSW 7 W
UV Index 2 3
Cloud Cover 36% 67%
Dew Point 57° 56°
Middle Grid line 75 F Middle Grid line 70 F Middle Grid line 65 F

Temperature History - May 31

more Historical Weather Data >
  Today Normal Record 5/31/2015
High 86° 73° N/A 72°
Low 60° 52° N/A 49°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:10 AM with 15:07 of sunlight, then sets at 8:17 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 2:23 AM with 12:34 of moolight, then sets at 2:57 PM

Londonderry Weather Report

Bout of cooler air to interrupt summerlike warmth across northeastern US

May 31, 2016; 6:02 PM ET

Temperatures and humidity levels will throttle back as dry air expands southward in the northeastern United States through the middle of the week. more >

Tue. Pollen

Tue. Dust & Dander

Tue. Wind Maps