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Islesboro, ME Weather Forecast for 5-Days

Updated: Mon Apr 13th 2026 5:15 PM EDT

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Islesboro, ME Weather – 4-13 – Moderate Rain
51° / 39°
Moderate Rain
Islesboro is set for rain showers with temperatures peaking at 51°F and dipping to 39°F. The chance of rain is 86% with an estimated 0.28in. Winds will be strong at speeds peaking at 22mph and gusts of 28.2mph at 10 PM. High humidity with average of 90% is anticipated, the maximum being 96% at 7 PM and 85% being its lowest at 11 PM. Barometric pressure is its highest of 29.75inHg at 11 PM, a lowest point of 29.69inHg at 6 PM with an avg 29.71inHg.
Islesboro, ME Weather – 4-14 – Moderate Rain
56° / 39°

Weather Tomorrow

Moderate Rain
Islesboro may see rain showers, with daytime highs of 56°F and overnight lows near 39°F. The chance of rain is 82% with an estimated 0.3in. Wind will be moderate, blowing around 13mph on average and gusts of 21.6mph at 12 AM. High humidity with average of 81% is anticipated, the maximum being 95% at 8 PM and 65% being its lowest at 1 PM. Barometric pressure is its highest of 30.03inHg at 10 AM, a lowest point of 29.76inHg at 12 AM with an avg 29.91inHg.
Islesboro, ME Weather – 4-15 – Moderate Rain
58° / 39°
Moderate Rain
In Islesboro, rain showers are likely with a high near 58°F and a low around 39°F. The chance of rain is 88% with an estimated 0.59in. Winds will be light at 7mph and gusts of 10mph at 1 PM. High humidity with average of 91% is anticipated, the maximum being 98% at 8 PM and 75% being its lowest at 11 AM. Barometric pressure is its highest of 29.91inHg at 10 PM, a lowest point of 29.77inHg at 2 AM with an avg 29.84inHg.
Islesboro, ME Weather – 4-16 – Heavy Rain
47° / 42°
Heavy Rain
Rain is in the forecast for Islesboro, with a high of 47°F and a low of 42°F. The chance of rain is 87% with an estimated 1.57in. Winds will be light at 8mph and gusts of 12.5mph at 7 PM. High humidity with average of 97% is anticipated, the maximum being 99% at 8 PM and 95% being its lowest at 9 AM. Barometric pressure is its highest of 29.95inHg at 3 PM, a lowest point of 29.85inHg at 10 PM with an avg 29.91inHg.
Islesboro, ME Weather – 4-17 – Scattered Showers
58° / 42°
Scattered Showers
Islesboro could see passing showers with daytime highs of 58°F and nighttime lows near 42°F. The chance of rain is 89% with an estimated 0.06in. Wind will be moderate, blowing around 11mph on average and gusts of 18.1mph at 5 PM. High humidity with average of 90% is anticipated, the maximum being 100% at 5 AM and 71% being its lowest at 4 PM. Barometric pressure is its highest of 30.1inHg at 11 PM, a lowest point of 29.72inHg at 4 AM with an avg 29.87inHg.
Islesboro, ME Weather – 4-18 – Overcast
47° / 40°
Overcast
Overcast is in the forecast for Islesboro, with a high of 47°F and a low of 40°F. Winds will be light at 9mph and gusts of 13.6mph at 12 AM. High humidity with average of 90% is anticipated, the maximum being 95% at 5 AM and 81% being its lowest at 3 PM. Barometric pressure is its highest of 30.2inHg at 9 AM, a lowest point of 30.08inHg at 11 PM with an avg 30.15inHg.

Currently

Overcast 50°F
29.76 inHg.
Barometer
93%
Humidity
SSW 17.3 mph
Wind
Overcast

5 Day Forecast Nearby

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