Costigan Weather Forecast
- 55
- 76
Chance Thunderstorms
- 52
- 76
Mostly Sunny
- 55
- 82
Mostly Sunny
- 55
- 83
Partly Sunny
- 58
- 83
Mostly Cloudy
- 60
- 81
Chance Rain Showers
Today 22 Jul Southern Penobscot
Mostly cloudy. Patchy fog in the morning. Scattered Showers with isolated Thunderstorms in the Morning, then scattered Showers and Thunderstorms in the afternoon. Some Thunderstorms may produce gusty Winds in the afternoon. Locally heavy rainfall possible in the afternoon. Humid with Highs in the upper 70s. South Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 50 percent.
Tonight 22 Jul Southern Penobscot
Widespread Showers. Patchy fog. Near steady temperature in the lower 60s. South Winds 10 to 15 Mph with Gusts up to 30 Mph. Chance of rain near 100 percent.
Costigan Temperature Statistics
July Temperature
Bangor, Bangor International Airport (16.8 miles)
Lowest 18 July, 2026
50.6 °FAverage July
72.3 °FHighest 2 July, 2026
93.7 °F
Climate (2021–2026)
Bangor, Bangor International Airport (16.8 miles)
Average Low 2021–2026
37.3 °FAverage 2021–2026
47.1 °FAverage High 2021–2026
56.8 °F