Waltham Weather Forecast
- 54
- 65
Rain Showers
- 56
- 77
Mostly Sunny
- 54
- 68
Chance Rain Showers
- 52
- 74
Chance Rain Showers
- 53
- 73
Chance Rain Showers
- 55
- 74
Chance Rain Showers
Today 18 Jun Interior Hancock
Mostly cloudy. Patchy fog in the morning. Scattered Showers in the Morning, then widespread Showers and scattered Thunderstorms in the afternoon. Cooler with Highs in the mid 60s. Temperature falling into the upper 50s in the afternoon. Southeast Winds 5 to 10 Mph with Gusts up to 25 Mph, increasing to 15 to 20 Mph with Gusts up to 40 Mph in the afternoon. Chance of rain 90 percent.
Tonight 18 Jun Interior Hancock
Showers with a chance of Thunderstorms in the Evening, then a chance of Showers after midnight. Patchy fog in the Evening, then Areas of fog after midnight. Near steady temperature in the upper 50s. Southeast Winds 15 to 20 Mph with Gusts up to 40 Mph, becoming southwest 5 to 10 Mph with Gusts up to 20 Mph after midnight. Chance of rain near 100 percent.
Waltham Temperature Statistics
June Temperature
Bar Harbor, Hancock County-Bar Harbor Airport (17.4 miles)
Lowest 1 June, 2026
37 °FAverage June
60.2 °FHighest 10 June, 2026
82 °F
Climate (2021–2026)
Bar Harbor, Hancock County-Bar Harbor Airport (17.4 miles)
Average Low 2021–2026
38.2 °FAverage 2021–2026
46.4 °FAverage High 2021–2026
54.5 °F