Squam Weather Forecast
- 66
- 79
Rain Showers
- 58
- 76
Sunny
- 55
- 74
Sunny
- 66
- 75
Mostly Sunny
- 68
- 77
Partly Sunny
- 69
- 80
Chance Thunderstorms
Today 20 Jul Nantucket
Showers with a chance of Thunderstorms this Morning, then Showers likely with a chance of Thunderstorms this afternoon. Locally heavy rainfall possible this morning. Highs in the upper 70s. South Winds 10 to 15 Mph. Chance of rain 80 percent.
Tonight 20 Jul Nantucket
Mostly cloudy with a slight chance of Showers with isolated Thunderstorms in the Evening, then partly cloudy after midnight. Humid with Lows in the upper 60s. Southwest Winds 5 to 10 Mph, becoming northwest 10 to 15 Mph after midnight. Chance of rain 20 percent.
Squam Temperature Statistics
July Temperature
Nantucket, Nantucket Memorial Airport (5.6 miles)
Lowest 5 July, 2025
54.6 °FAverage July
70.1 °FHighest 9 July, 2025
80.7 °F
Climate (2020–Present)
Nantucket, Nantucket Memorial Airport (5.6 miles)
Average Low 2020–2025
47.7 °FAverage 2020–2025
53.6 °FAverage High 2020–2025
59.4 °F