Waltham, MA weather
Today, hourly and 7-day forecast, sunrise and sunset, and the normal climate month by month
Weather in Waltham now
Loading the National Weather Service forecast…
Waltham weather by the hour
Waltham weather for the next 7 days
Source: National Weather Service (NOAA) · forecast for the coordinates of Waltham.
This week in Waltham
Sunrise, sunset and moon in Waltham
What is the weather usually like in Waltham?
Köppen climate classification, calculated from the 1991–2020 normals
- Julywarmest month · 85°F average high
- Januarycoldest month · 19°F average low
- 42.6 inprecipitation per year · 1,082 mm
Average high and low temperature (°F)
Average precipitation (inches)
Best time to visit Waltham: May–June and August–September, with mild temperatures and fewer rainy days.
Source: NOAA NCEI U.S. Climate Normals 1991–2020, station BEDFORD HANSCOM FLD, MA US (USW00014702), adjusted for the elevation of Waltham.
Waltham weather month by month
Sunrise and sunset in Waltham through the year
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 7:09 AM | 4:39 PM | 9 h 29 min |
| February | 6:39 AM | 5:18 PM | 10 h 39 min |
| March | 6:54 AM | 6:52 PM | 11 h 57 min |
| April | 6:01 AM | 7:27 PM | 13 h 25 min |
| May | 5:21 AM | 8:01 PM | 14 h 39 min |
| June | 5:05 AM | 8:25 PM | 15 h 19 min |
| July | 5:20 AM | 8:21 PM | 15 h 1 min |
| August | 5:50 AM | 7:47 PM | 13 h 56 min |
| September | 6:23 AM | 6:56 PM | 12 h 32 min |
| October | 6:56 AM | 6:04 PM | 11 h 7 min |
| November | 6:34 AM | 4:24 PM | 9 h 50 min |
| December | 7:05 AM | 4:14 PM | 9 h 9 min |
Times for the 15th of each month, local time (America/New York).
What is the weather like in Waltham?
Waltham has a hot-summer humid continental climate. The warmest month is July, with an average high of 85°F (30°C), and the coldest is January, with average lows of 19°F (-8°C).
It gets about 42.6 inches (1,082 mm) of precipitation a year. The wettest month is October and the driest is February.
The best time to visit Waltham is May–June and August–September. At 49 ft of elevation, nights are mild most of the year. The live forecast on this page comes from the National Weather Service and the climate averages from NOAA’s 1991–2020 U.S. Climate Normals.
More about Waltham
Weather in towns near Waltham
Questions about the weather in Waltham
What is the hottest month in Waltham?
July, with an average high of 85°F (30°C).
What is the coldest month in Waltham?
January, with an average low of 19°F (-8°C).
How much does it rain in Waltham?
About 42.6 inches (1,082 mm) a year; the wettest month is October.
Does it snow in Waltham?
Snow is very rare or not recorded at the nearest weather station.
When is the best time to visit Waltham?
May–June and August–September, when temperatures are most pleasant and rainy days are fewer.
What climate does Waltham have?
Hot-summer humid continental (Köppen Dfa).
What is the weather like in Waltham in November?
Highs average 53°F and lows 33°F, with about 3.7 inches of precipitation.
What time is sunrise in Waltham?
Around 6:34 AM in mid-November, and sunset around 4:24 PM. Today’s exact times are shown above.
Where does this Waltham weather forecast come from?
From the National Weather Service (NOAA), the official U.S. weather agency, for the exact coordinates of Waltham.
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