Weather forecast for 10 days
Waltham, MA

Weather forecast for the weekend

Saturday, May 3.

PM Thunderstorms
5:35 am

7:48 pm
EDT
PM Thunderstorms
82°F / 59°F
  • Wind: 15mph SSW
  • Humidity: 58%
  • Precip. probability: 57%
  • Precipitation: 0"
  • UV index: 7
Today, in Waltham, rainy weather and thunderstorms are expected in the afternoon.
Minimal precipitation is anticipated. The temperature variation is predicted to range from a maximum of a warm 82.4°F to a minimum of a refreshing 59°F.
The maximum heat index, which represents the influence of relative humidity on air temperature, is appraised at 84.2°F.
The temperature of 82.4°F reflects June's climate better than May's.
Sunrise will be at 5:35 am and sunset at 7:48 pm; the daylight will last for 14h and 13min.

Sunday, May 4.

PM Showers
5:33 am

7:49 pm
EDT
PM Showers
66°F / 52°F
  • Wind: 8mph NE
  • Humidity: 79%
  • Precip. probability: 49%
  • Precipitation: 0.31"
  • UV index: 3
Tomorrow, on Sunday, May 4, intermittent rain showers are forecasted for the afternoon.
With a low probability, light precipitation is expected. The maximum temperature will be an enjoyable 66.2°F, while the minimum predicted temperature is a crisp 51.8°F.
Expect the maximum temperature to remain consistent with the typical May high of 66.9°F.
Sunrise will be at 5:33 am and sunset at 7:49 pm; tomorrow's daylight will last for 14h and 16min.

Frequently asked questions

What is the weather forecast for Waltham for tomorrow?
Tomorrow, a few passing showers are expected later today.
Will it rain tomorrow?
Light precipitation of 0.31" is predicted. The chance of rainfall is 49%.
What will be the maximum temperature tomorrow?
Tomorrow, the maximum temperature in Waltham will be 66.2°F, while the minimum temperature will be 51.8°F.
Tomorrow, the highest temperature will be in line with the average maximum temperature in May. Tomorrow, the lowest temperature will be also in line with the average low temperature.
When is the sunrise / sunset tomorrow?
On Sunday, in Waltham, sunrise will be at 5:33 am and sunset at 7:49 pm (EDT).
How many hours of daylight will Waltham have tomorrow?
In Waltham, the length of the day tomorrow will be 14h and 16min.
What is the weather forecast for Waltham for the next ten days?
In Waltham, a combination of showery, gloomy and turbulent weather is expected for the next ten days.
Will it rain in the next ten days?
Rain is expected on Sunday through next Saturday in Waltham. Monday, with elevated precipitation of 0.87", will be the day with the most rainfall.
How warm will it be in the next ten days?
The maximum temperature will range between 53.6°F and 82.4°F, as the minimum temperature will range between 44.6°F and 59°F.
What will be the warmest and the coldest days?
Today is the warmest day, with a maximum temperature of 82.4°F. The coldest day will be Monday, with a maximum of 53.6°F.

Long-term weather forecast

SatMay 3.
  • 82°F
  • 59°F
PM Thunderstorms
PM Thunderstorms
  • Wind: 15mph SSW
  • Humidity: 58%
  • UV index: 7
  • Precip. probability: 57%
  • Precipitation: 0"
  • 5:35 am 7:48 pm EDT
SunMay 4.
  • 66°F
  • 52°F
PM Showers
PM Showers
  • Wind: 8mph NE
  • Humidity: 79%
  • UV index: 3
  • Precip. probability: 49%
  • Precipitation: 0.31"
  • 5:33 am 7:49 pm EDT
MonMay 5.
  • 54°F
  • 50°F
Rain
Rain
  • Wind: 12mph NE
  • Humidity: 83%
  • UV index: 3
  • Precip. probability: 83%
  • Precipitation: 0.87"
  • 5:32 am 7:50 pm EDT
TueMay 6.
  • 63°F
  • 55°F
Rain
Rain
  • Wind: 10mph ESE
  • Humidity: 90%
  • UV index: 3
  • Precip. probability: 82%
  • Precipitation: 0.31"
  • 5:31 am 7:51 pm EDT
WedMay 7.
  • 70°F
  • 55°F
Scattered Thunderstorms
Scattered Thunderstorms
  • Wind: 10mph SW
  • Humidity: 70%
  • UV index: 7
  • Precip. probability: 46%
  • Precipitation: 0.63"
  • 5:30 am 7:52 pm EDT
ThuMay 8.
  • 68°F
  • 50°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 11mph N
  • Humidity: 66%
  • UV index: 5
  • Precip. probability: 24%
  • Precipitation: 0.08"
  • 5:28 am 7:53 pm EDT
FriMay 9.
  • 57°F
  • 45°F
AM Showers
AM Showers
  • Wind: 11mph NNE
  • Humidity: 64%
  • UV index: 7
  • Precip. probability: 37%
  • Precipitation: 0.12"
  • 5:27 am 7:55 pm EDT
SatMay 10.
  • 70°F
  • 50°F
Partly Cloudy
Partly Cloudy
  • Wind: 10mph NW
  • Humidity: 53%
  • UV index: 7
  • Precip. probability: 24%
  • Precipitation: 0.28"
  • 5:26 am 7:56 pm EDT
SunMay 11.
  • 75°F
  • 50°F
Partly Cloudy
Partly Cloudy
  • Wind: 11mph W
  • Humidity: 49%
  • UV index: 7
  • Precip. probability: 24%
  • Precipitation: 0"
  • 5:25 am 7:57 pm EDT
MonMay 12.
  • 72°F
  • 48°F
Partly Cloudy
Partly Cloudy
  • Wind: 11mph WNW
  • Humidity: 47%
  • UV index: 7
  • Precip. probability: 24%
  • Precipitation: 0"
  • 5:24 am 7:58 pm EDT
For the next ten days, a combination of rain-filled, cloud-filled and stormy weather is predicted.
Rain is expected on Sunday through next Saturday.
Temperature differences will be noticeable in the coming days. The maximum temperature will vary between 53.6°F and 82.4°F, while the fluctuation in night temperatures will be also significant, as temperatures overnight will fluctuate from 44.6°F up to 59°F.
With a high of 82.4°F, today is the warmest day; the coldest day will be Monday, with a maximum of 53.6°F.
Updated: May 3, 2025 @ 05:29:20 UTC
Published by: Weather U.S. | About Us
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Weather Forecasting & Climate
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