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Personalized Forecasts

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    • Early AM

      Sep 28

      55° Lo
      Drizzle
      • Asthma
      • Weather
      • Hi RealFeel: 76°
      • UV: 4 - Moderate
      • Air Qual.: Good
      More
    • Today

      Sep 28

      60° /52°
      Cooler with a little rain
      • Beneficial
      • weather for asthma
      • Hi RealFeel: 58°
      • UV: 2 - Low
      • Air Qual.: Good
      More
    • Thu

      Sep 29

      59° /54°
      Mostly cloudy, a little rain
      • Neutral
      • weather for asthma
      • Hi RealFeel: 53°
      • UV: 2 - Low
      • Air Qual.: Good
      More
    • Fri

      Sep 30

      59° /55°F
      Breezy with rain and drizzle
      • Beneficial
      • weather for asthma
      • Hi RealFeel: 51°
      • UV: 2 - Low
      • Air Qual.: Good
    • Sat

      Oct 1

      61° /55°
      Periods of rain
      • Neutral
      • weather for asthma
      • Hi RealFeel: 61°
      • UV: 2 - Low
      • Air Qual.: Good
      More

    Day

    59°Hi RealFeel® 51° Precipitation 58%
    Breezy with occasional rain and drizzle
    • NE 21 mph
    • Gusts: 36 mph
    • Max UV Index: 1 (Low)
    • Thunderstorms: 0%
    • Precipitation: 0.12 in
    • Rain: 0.12 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 3.5 hrs
    • Hours of Rain: 3.5 hrs

    Night

    55°Lo RealFeel® 47° Precipitation 79%
    Plenty of clouds with rain tapering to a couple of showers
    • NE 8 mph
    • Gusts: 15 mph
    • Max UV Index: N/A
    • Thunderstorms: 0%
    • Precipitation: 0.38 in
    • Rain: 0.38 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 6 hrs
    • Hours of Rain: 6 hrs

    Temperature History

    more Historical Weather Data >
      Today Normal Record 9/30/2015
    High 59° 67° N/A 79°
    Low 55° 45° N/A 53°

    Sunrise/Sunset

    • Sunrise: 6:42 AM
    • Sunset: 6:27 PM
    • Duration: 11:45 hr

    Moonrise/Moonset

    • Moonrise: 6:10 AM
    • Moonset: 6:31 PM
    • Duration: 12:21 hr
    Astronomy

    Waltham Weather Report

    Rain to soak northeastern US during final days of September

    September 27, 2016; 11:45 PM ET

    Periods of rain will drench portions of the northeastern United States Friday. More >

    Fri. Asthma Risk

    Fri. UV Index