Prospect Harbor, ME Weather Forecast for 5-Days

Updated: Fri Apr 10th 2026 6:15 PM EDT

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Prospect Harbor, ME Weather – 4-10 – Sunny
52° / 37°
Sunny
It will be sunny in Prospect Harbor, with a high of 52°F and a low of 37°F. Wind will be moderate, blowing around 15mph on average and gusts of 20.6mph at 11 PM. The humidity will be on the higher side, averaging about 78%, the maximum being 95% at 8 PM and 75% being its lowest at 7 PM. Barometric pressure is its highest of 30.12inHg at 7 PM, a lowest point of 30.03inHg at 11 PM with an avg 30.07inHg.
Prospect Harbor, ME Weather – 4-11 – Moderate Rain
49° / 37°

Weather Tomorrow

Moderate Rain
Prospect Harbor is set for rain with temperatures peaking at 49°F and dipping to 37°F. The chance of rain is 88% with an estimated 0.32in. Wind will be moderate, blowing around 18mph on average and gusts of 25.9mph at 7 PM. The humidity will be on the higher side, averaging about 67%, the maximum being 98% at 7 AM and 47% being its lowest at 3 PM. Barometric pressure is its highest of 30.22inHg at 11 PM, a lowest point of 29.91inHg at 4 AM with an avg 30.01inHg.
Prospect Harbor, ME Weather – 4-12 – Sunny
48° / 35°
Sunny
Prospect Harbor is set for a sunny day with temperatures peaking at 48°F and dipping to 35°F. Wind will be moderate, blowing around 14mph on average and gusts of 20.5mph at 7 PM. Humidity levels should be comfortable, sitting around 53% on average, the maximum being 65% at 10 PM and 44% being its lowest at 1 PM. Barometric pressure is its highest of 30.41inHg at 9 AM, a lowest point of 30.23inHg at 11 PM with an avg 30.34inHg.
Prospect Harbor, ME Weather – 4-13 – Heavy Rain
45° / 38°
Heavy Rain
In Prospect Harbor, rain showers are likely with a high near 45°F and a low around 38°F. The chance of rain is 88% with an estimated 3.04in. Winds will be strong at speeds peaking at 23mph and gusts of 35.2mph at 11 AM. High humidity with average of 94% is anticipated, the maximum being 98% at 9 PM and 68% being its lowest at 11 PM. Barometric pressure is its highest of 30.34inHg at 11 PM, a lowest point of 29.75inHg at 10 PM with an avg 29.98inHg.
Prospect Harbor, ME Weather – 4-14 – Scattered Showers
57° / 43°
Scattered Showers
In Prospect Harbor, scattered showers are likely with a high near 57°F and a low around 43°F. Rainfall predicted to have a 63% chance with an estimated 0.03in. Wind will be moderate, blowing around 13mph on average and gusts of 23.6mph at 6 AM. High humidity with average of 85% is anticipated, the maximum being 97% at 3 AM and 62% being its lowest at 2 PM. Barometric pressure is its highest of 30.02inHg at 12 PM, a lowest point of 29.76inHg at 12 AM with an avg 29.93inHg.
Prospect Harbor, ME Weather – 4-15 – Scattered Showers
44° / 41°
Scattered Showers
Daytime highs will reach 44°F with lows dropping to 41°F in Prospect Harbor, where on and off showers are set to occur. The chance of rain is 89% with an estimated 0.15in. Winds will be light at 9mph and gusts of 12.8mph at 3 AM. High humidity with average of 97% is anticipated, the maximum being 100% at 11 PM and 94% being its lowest at 12 AM. Barometric pressure is its highest of 29.98inHg at 8 AM, a lowest point of 29.7inHg at 11 PM with an avg 29.88inHg.

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