Prospect Harbor, ME Weather Tomorrow

The extended forecast for Prospect Harbor begins with tomorrow's weather and continues through the next 5 days with precipitation probability, daily and nightly weather conditions, high and low temperature trends, sunrise and sunset information, sky cover, wind speed, wind direction, and wind chill for the Prospect Harbor area and around Hancock county, Maine.
Updated: Sat Aug 29th 2026 7:15 PM EDT
Prospect Harbor, ME Weather – 8-29 – Sunny
79° / 57°
Sunny
In Prospect Harbor, bright and sunny conditions with highs near 79°F and lows around 57°F. There might be light rainfall having a 17% chance with an estimated 0in. Winds will be light at 10mph and gusts of 8.7mph at 10 PM. Humidity levels should be comfortable, sitting around 54% on average, the maximum being 57% at 11 PM and 53% being its lowest at 8 PM. Barometric pressure is its highest of 30.14inHg at 10 PM, a lowest point of 30.12inHg at 8 PM with an avg 30.13inHg.
Prospect Harbor, ME Weather – 8-30 – Overcast
74° / 56°

Weather Tomorrow

Overcast
Prospect Harbor is set for cloud-filled skies with temperatures peaking at 74°F and dipping to 56°F. Rainfall predicted to have a 53% chance with an estimated 0.04in. Wind will be moderate, blowing around 13mph on average and gusts of 23.3mph at 7 AM. The humidity will be on the higher side, averaging about 74%, the maximum being 97% at 11 PM and 50% being its lowest at 12 PM. Barometric pressure is its highest of 30.13inHg at 12 AM, a lowest point of 29.95inHg at 11 PM with an avg 30.03inHg.
Prospect Harbor, ME Weather – 8-31 – Sunny
72° / 54°
Sunny
Prospect Harbor could see sunshine with daytime highs of 72°F and nighttime lows near 54°F. There's a moderate 36% chance of rainfall with an estimated 0.03in. Winds will be light at 9mph and gusts of 20.8mph at 7 AM. The humidity will be on the higher side, averaging about 72%, the maximum being 98% at 2 AM and 36% being its lowest at 3 PM. Barometric pressure is its highest of 30.09inHg at 11 PM, a lowest point of 29.94inHg at 2 AM with an avg 30.02inHg.
Prospect Harbor, ME Weather – 9-1 – Overcast
65° / 52°
Overcast
Highs will reach 65°F with lows near 52°F in Prospect Harbor, where cloud-filled skies are. There might be light rainfall having a 16% chance. Winds will be light at 8mph and gusts of 19mph at 1 PM. The humidity will be on the higher side, averaging about 69%, the maximum being 82% at 9 PM and 52% being its lowest at 11 AM. Barometric pressure is its highest of 30.19inHg at 9 PM, a lowest point of 30.09inHg at 12 AM with an avg 30.13inHg.
Prospect Harbor, ME Weather – 9-2 – Overcast
66° / 52°
Overcast
Daytime highs will reach 66°F with lows dropping to 52°F in Prospect Harbor, where skies will be overcast. There's a moderate 47% chance of rainfall with an estimated 0.01in. Winds will be light at 10mph and gusts of 20.4mph at 11 PM. High humidity with average of 82% is anticipated, the maximum being 97% at 8 AM and 59% being its lowest at 3 PM. Barometric pressure is its highest of 30.23inHg at 10 AM, a lowest point of 29.97inHg at 11 PM with an avg 30.15inHg.
Prospect Harbor, ME Weather – 9-3 – Light Rain Shower
73° / 54°
Light Rain Shower
Daytime highs will reach 73°F with lows dropping to 54°F in Prospect Harbor, where it will rain at times. The chance of rain is 89% with an estimated 0.25in. Wind will be moderate, blowing around 11mph on average and gusts of 30.2mph at 8 AM. High humidity with average of 92% is anticipated, the maximum being 100% at 6 AM and 71% being its lowest at 5 PM. Barometric pressure is its highest of 30.16inHg at 12 AM, a lowest point of 29.64inHg at 2 PM with an avg 29.76inHg.

Currently

Sunny 71°F
30.11 inHg.
Barometer
48%
Humidity
WSW 10.8 mph
Wind
Sunny

5 Day Forecast Nearby

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