• Tonight

    May 22

    Lo 37°

    Clear, brisk and chilly

    Driving Weather
    • Precip
      50%
    • Hours of Precip
      0.5
    • Rain
      0.02 in
    more
  • Sat

    May 23

    64°Lo 44°

    Mostly sunny

    Excellent for driving
    • Precip
      7%
    • Hours of Precip
      0
    • Rain
      0 in
  • Sun

    May 24

    79°Lo 54°

    Mostly sunny; breezy, warmer

    Excellent for driving
    • Precip
      2%
    • Hours of Precip
      0.5
    • Rain
      0.05 in
    more
  • Mon

    May 25

    78°Lo 59°

    Times of clouds and sun

    Very Good for driving
    • Precip
      12%
    • Hours of Precip
      4
    • Rain
      0.24 in
    more
  • Tue

    May 26

    83°Lo 63°

    Cloudy, a t-storm in the p.m.

    Good for driving
    • Precip
      51%
    • Hours of Precip
      0.5
    • Rain
      0.05 in
    more
Next Previous
Hi 64° RealFeel® 66° Precipitation 7%

Day

N

E

S

W

  • W 13 mph
  • Gusts: 18 mph

Mostly sunny; nice in the afternoon

  • Max UV Index: 8 (Very High)
  • Thunderstorms: 1%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs
Lo 44° RealFeel® 40° Precipitation 1%

Night

N

E

S

W

  • SW 8 mph
  • Gusts: 15 mph

Clear to partly cloudy

  • Max UV Index: N/A
  • Thunderstorms: 1%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs

Temperature History - May 23

more Historical Weather Data >
  Today Normal Record 5/23/2014
High 64° 71° N/A 60°
Low 44° 48° N/A 50°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:16 AM with 14:51 of sunlight, then sets at 8:07 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 10:30 AM with -11:-24 of moolight, then sets at 11:05 PM

Waltham Weather Report

Boston: Temperatures to Ride Roller Coaster Into Memorial Day

May 22, 2015; 5:20 PM ET

Temperatures will remain on a roller coaster ride around the Boston area through the Memorial Day holiday weekend. more >

Travel Weather Forecast

May 22, 2015; 6:28 PM ET United States travel weather forecast

Sat. Travel Weather

48 Hour Precipitation Forecast

Sat. Driving Weather