Weather forecast for 10 days
Waltham, MA

Tomorrow, unstable conditions may trigger brief thunderstorms.
Minimal precipitation is anticipated. The maximum temperature will be a hot 86°F, while the minimum temperature will be an enjoyable 64.4°F.
The maximum heat index, which modifies the air temperature to account for humidity, is estimated at a very hot 96.8°F. Take into consideration that the heat index values are calculated for shade and light wind conditions. Bear in mind that direct sunshine exposure increases weather impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees.
Tomorrow's forecasted high will be a couple of degrees higher than the typical July high of 82°F.
Sunrise will be at 5:24 am and sunset at 8:17 pm; tomorrow's daylight will last for 14h and 53min.

Over the next ten days, a mix of dull, dry and sunny and stormy weather is anticipated.
With minimal precipitation of 0.04", rainfall is expected on Sunday and Friday.
Expect a substantial fluctuation in daytime highs over the next several days. Highs will range from 78.8°F to 93.2°F, while the lowest night temperatures will vary also significantly, as the lowest temperatures will be recorded between 53.6°F and 71.6°F.
Friday is expected to be the hottest, reaching up to 93.2°F; Monday and Tuesday, with the highest temperature of 78.8°F, will be the coldest days in Waltham.
Including the humidity's impact, the maximum feel-like temperature may increase considerably and range between 78.8°F and a blistering 105.8°F.

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July stands out as the warmest month in Waltham, bringing average highs of 82°F and lows near 64°F.