Forecast Details for Waltham, MA

Recent Locations: Flint, MI Monument, CO Waltham, MA

Tonight: Mostly cloudy, with a low around 66. Calm wind becoming northeast around 6 mph after midnight.

Thursday: A slight chance of showers after 3pm. Mostly cloudy, with a high near 71. East wind around 8 mph. Chance of precipitation is 20%.

Thursday Night: A chance of showers, mainly after 8pm. Cloudy, with a low around 60. East wind around 5 mph becoming calm in the evening. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

Friday: A chance of showers, mainly before 11am. Mostly cloudy, with a high near 69. East wind 5 to 8 mph. Chance of precipitation is 30%.

Friday Night: A chance of showers before 11pm, then a chance of showers and thunderstorms between 11pm and 5am, then showers likely and possibly a thunderstorm after 5am. Cloudy, with a low around 59. East wind around 6 mph. Chance of precipitation is 60%.

Saturday: A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 70. East wind around 7 mph. Chance of precipitation is 60%.

Saturday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 62. Northeast wind 3 to 6 mph. Chance of precipitation is 60%.

Sunday: A chance of showers before 9am. Mostly cloudy, with a high near 73. Northeast wind around 6 mph. Chance of precipitation is 30%.

Sunday Night: Mostly cloudy, with a low around 63. East wind around 5 mph becoming calm in the evening.

Monday: Partly sunny, with a high near 85. Calm wind becoming south around 6 mph in the afternoon.

Monday Night: A chance of showers. Partly cloudy, with a low around 69. Southwest wind around 6 mph. Chance of precipitation is 30%.

Tuesday: Showers and thunderstorms likely. Partly sunny, with a high near 88. Southwest wind 6 to 10 mph. Chance of precipitation is 60%.

Tuesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 71. West wind around 7 mph. Chance of precipitation is 40%.

Wednesday: Mostly sunny, with a high near 87. West wind 6 to 9 mph.

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Weather Topic: What is Fog?

Home - Education - Cloud Types - Fog

Fog Next Topic: Fractus Clouds

Fog is technically a type of stratus cloud, which lies along the ground and obscures visibility.

It is usually created when humidity in the air condenses into tiny water droplets. Because of this, some places are more prone to foggy weather, such as regions close to a body of water.

Fog is similar to mist; both are the appearance of water droplets suspended in the air, but fog is the term applied to the condition when visibility is less than 1 km.

Next Topic: Fractus Clouds

Weather Topic: What is Freezing Rain?

Home - Education - Precipitation - Freezing Rain

Next Topic: Graupel

Freezing rain is a condition where precipitation which has fallen in the form of water droplets reaches temperatures which are below freezing and freezes upon coming into contact with surface objects. The result of this precipitation is a glaze of ice which can be damaging to plants and man-made structures. A severe onset of freezing rain which results in a very thick glaze of ice is known as an ice storm.

Next Topic: Graupel