• Mostly sunny 70°
    Asthma Current Weather
    • Relative Humidity
      50%
    • Yesterday
      Temp
      70°
    • Pressure
      30.05 inHg
  • Tonight

    Aug 20

    Lo 55°

    Mostly cloudy

    Asthma Weather
    • Hi
      RealFeel
      85°
    • UV
      6 - High
    • Air Qual.
      Good
    Day Details >
  • Tomorrow

    Aug 21

    Hi 74°

    Intervals of clouds and sun

    Beneficial weather for asthma
    • Hi
      RealFeel
      77°
    • UV
      5 - Moderate
    • Air Qual.
      Good
    Day Details >
  • Friday

    Aug 22

    Hi 72°

    Partly sunny with a shower

    Beneficial weather for asthma
    • Hi
      RealFeel
      73°
    • UV
      5 - Moderate
    • Air Qual.
      Good
    Day Details >
Next

Expect showery weather Friday morning through Friday evening

8/20 8/21 Now: 7:51pm
PM 7-11
  • 7pm Mostly sunny 73° 0%
  • 8pm Mostly cloudy 67° 0%
  • 9pm Mostly cloudy 63° 0%
  • 10pm Mostly cloudy 61° 0%
  • 11pm Mostly cloudy 60° 0%
AM 6-11
  • 6am Mostly cloudy 55° 1%
  • 7am Mostly cloudy 57° 3%
  • 8am Intermittent clouds 59° 6%
  • 9am Intermittent clouds 63° 6%
  • 10am Intermittent clouds 66° 6%
  • 11am Intermittent clouds 70° 6%
PM 12-5
  • 12pm Intermittent clouds 73° 6%
  • 1pm Intermittent clouds 74° 6%
  • 2pm Intermittent clouds 74° 7%
  • 3pm Intermittent clouds 74° 7%
  • 4pm Intermittent clouds 72° 7%
  • 5pm Intermittent clouds 71° 7%
Hourly Forecast >

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Waltham Weather Report

Heavy Rain to Avoid Boston Through Weekend

August 20, 2014; 12:04 PM ET

A wedge of dry air will slowly erode later this week and may allow spotty showers to survive the trip into Boston from the Midwest. more >

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The Dangers of Bus Travel

Dec 10, 2012; 5:00 AM ET While bus transportation is one of the most affordable, it is important to know which motor coach companies rank highest in safety.

Wed. Air Quality

Wed. Asthma Risk

Wed. UV Index