Islesboro, ME Hourly Weather Forecast
Next 48 Hours
Sun, Apr 12th 2026
Skies will shift from Sunny skies to Overcast conditions as the day goes on. Warming trend from 40°F to 56°. Breezy wind, shifting from NW to SSW at 9.7 mph, while humidity ranges from 23% to 62%, and an avg barometric pressure of 30.4 inHg.
| Sun, Apr 12th | Temp | Humidity | Wind (mph) | Pressure (inHg) | Dew Point | Precip. |
|---|---|---|---|---|---|---|
8 AM Sunny UV: 0.8 |
40°F Feels 34°F |
55% | 11.9 NW | 30.41 | 24.2°F | 0% |
9 AM SunnyUV: 1.9 |
42°F Feels 37°F |
46% | 11.2 NW | 30.45 | 23.1°F | 0% |
10 AM SunnyUV: 3.3 |
46°F Feels 41°F |
39% | 10.1 NNW | 30.45 | 21.7°F | 0% |
11 AM SunnyUV: 4.6 |
49°F Feels 45°F |
34% | 8.9 NW | 30.43 | 22.1°F | 0% |
12 PM SunnyUV: 5.3 |
52°F Feels 49°F |
29% | 7.8 NW | 30.44 | 21°F | 0% |
1 PM SunnyUV: 5.4 |
54°F Feels 52°F |
26% | 6.7 NW | 30.42 | 20.1°F | 0% |
2 PM SunnyUV: 4.6 |
56°F Feels 54°F |
23% | 4.7 WNW | 30.39 | 19.7°F | 0% |
3 PM SunnyUV: 3.3 |
54°F Feels 51°F |
24% | 7.2 SW | 30.41 | 21°F | 0% |
4 PM SunnyUV: 1.9 |
52°F Feels 49°F |
38% | 11.6 SSW | 30.39 | 27.8°F | 0% |
5 PM SunnyUV: 0.8 |
49°F Feels 45°F |
40% | 12.8 SSW | 30.36 | 27.3°F | 0% |
6 PM Overcast  UV: 0.2 |
46°F Feels 41°F |
56% | 11.4 SSW | 30.39 | 30.5°F | 0% |
7 PM Overcast UV: 0 |
44°F Feels 38°F |
59% | 10.3 SSW | 30.39 | 29.8°F | 0% |
8 PM Cloudy  UV: 0 |
43°F Feels 37°F |
53% | 10.1 SSW | 30.37 | 26.1°F | 0% |
9 PM Overcast  UV: 0 |
41°F Feels 36°F |
58% | 9.8 SSW | 30.37 | 27.9°F | 0% |
10 PM Overcast UV: 0 |
40°F Feels 34°F |
62% | 10.1 SSW | 30.35 | 28.5°F | 0% |
11 PM Partly Cloudy  UV: 0 |
40°F Feels 33°F |
58% | 10.1 SSW | 30.35 | 25.4°F | 0% |
Mon, Apr 13th 2026
Skies will shift from moderate rain to light rain as the day goes on. Rain forecasted to be moderate rain at times (up to 0.04in), light rain (up to 0.16in), moderate rain (up to 0.28in), heavy rain (up to 0.30in), heavy rain at times (up to 0.05in). Temps range from 38° to 48°. Breezy wind, shifting from SSW to WSW at 13.4 mph, as humidity ranges 70% to 98%, and an avg barometric pressure of 29.94 inHg.
| Mon, Apr 13th | Temp | Humidity | Wind (mph) | Pressure (inHg) | Dew Point | Precip. |
|---|---|---|---|---|---|---|
12 AM Overcast UV: 0 |
39°F Feels 32°F |
70% | 10.7 SSW | 30.32 | 30.4°F | 0% |
1 AM Overcast UV: 0 |
39°F Feels 31°F |
92% | 13.6 SSW | 30.29 | 36.1°F | 0% |
2 AM Overcast UV: 0 |
39°F Feels 30°F |
85% | 15 SSW | 30.28 | 34.8°F | 0% |
3 AM Moderate Rain At Times UV: 0 |
38°F Feels 29°F |
90% | 15.4 SSW | 30.22 | 35.4°F | 100% Rain est. 0.02in |
4 AM Moderate Rain At TimesUV: 0 |
38°F Feels 29°F |
92% | 16.1 SSW | 30.19 | 35.6°F | 100% Rain est. 0.04in |
5 AM Light Rain UV: 0 |
38°F Feels 28°F |
95% | 17.4 SSW | 30.16 | 35.9°F | 100% Rain est. 0.05in |
6 AM Light Rain UV: 0 |
38°F Feels 28°F |
95% | 18.8 S | 30.1 | 36.6°F | 100% Rain est. 0.13in |
7 AM Light RainUV: 0 |
38°F Feels 29°F |
96% | 20.1 S | 30.07 | 37°F | 100% Rain est. 0.16in |
8 AM Moderate Rain UV: 0.1 |
39°F Feels 30°F |
96% | 20.4 SSW | 30.04 | 37.4°F | 100% Rain est. 0.2in |
9 AM Moderate RainUV: 0.1 |
40°F Feels 31°F |
95% | 19.5 SSW | 29.98 | 38.8°F | 100% Rain est. 0.25in |
10 AM Moderate RainUV: 0.3 |
41°F Feels 32°F |
95% | 18.6 SSW | 29.95 | 39.5°F | 100% Rain est. 0.28in |
11 AM Heavy Rain UV: 1.1 |
42°F Feels 35°F |
95% | 17.7 SSW | 29.92 | 40.2°F | 100% Rain est. 0.3in |
12 PM Heavy RainUV: 0.8 |
44°F Feels 37°F |
93% | 15.4 SSW | 29.86 | 42.1°F | 100% Rain est. 0.15in |
1 PM Heavy RainUV: 0.8 |
45°F Feels 39°F |
92% | 12.5 SSW | 29.83 | 43.1°F | 100% Rain est. 0.08in |
2 PM Cloudy  UV: 0.6 |
46°F Feels 40°F |
91% | 11.2 SSW | 29.8 | 44°F | 0% |
3 PM Cloudy UV: 0.4 |
46°F Feels 41°F |
93% | 10.1 SSW | 29.76 | 44.9°F | 0% |
4 PM Cloudy UV: 0.3 |
47°F Feels 41°F |
94% | 10.3 SW | 29.74 | 45.3°F | 0% |
5 PM Overcast UV: 0.2 |
47°F Feels 41°F |
95% | 9.8 SW | 29.72 | 45.7°F | 0% |
6 PM Moderate Rain At Times UV: 0.1 |
47°F Feels 41°F |
96% | 9.8 SSW | 29.71 | 45.7°F | 100% Rain est. 0.04in |
7 PM Heavy Rain At Times UV: 0 |
47°F Feels 41°F |
97% | 8.5 SW | 29.7 | 45.7°F | 100% Rain est. 0.05in |
8 PM Light RainUV: 0 |
47°F Feels 42°F |
97% | 7.8 SW | 29.7 | 45.7°F | 100% Rain est. 0.07in |
9 PM Light RainUV: 0 |
47°F Feels 42°F |
98% | 7.4 SW | 29.7 | 45.9°F | 100% Rain est. 0.04in |
10 PM Light RainUV: 0 |
48°F Feels 45°F |
98% | 7.4 WSW | 29.7 | 46°F | 100% Rain est. 0.02in |
11 PM Mist UV: 0 |
48°F Feels 45°F |
97% | 7.6 WSW | 29.79 | 49.2°F | 0% |
Tue, Apr 14th 2026
Foggy skies will dominate from morning to night. Temps range from 48° to 49°. Breezy wind, shifting from W to NNW at 7.8 mph, while humidity around 98%, and an avg barometric pressure of 29.78 inHg.
| Tue, Apr 14th | Temp | Humidity | Wind (mph) | Pressure (inHg) | Dew Point | Precip. |
|---|---|---|---|---|---|---|
12 AM Fog UV: 0 |
48°F Feels 46°F |
98% | 7.4 W | 29.72 | 47.1°F | 0% |
1 AM FogUV: 0 |
48°F Feels 47°F |
98% | 8.1 W | 29.73 | 47.5°F | 0% |
2 AM FogUV: 0 |
49°F Feels 48°F |
98% | 8.1 W | 29.74 | 47.9°F | 0% |
3 AM FogUV: 0 |
49°F Feels 48°F |
98% | 7.6 WNW | 29.77 | 48.1°F | 0% |
4 AM FogUV: 0 |
49°F Feels 48°F |
98% | 8.1 WNW | 29.78 | 48.2°F | 0% |
5 AM FogUV: 0 |
49°F Feels 48°F |
98% | 8.3 WNW | 29.8 | 48.3°F | 0% |
6 AM Fog UV: 0 |
49°F Feels 48°F |
98% | 7.8 NW | 29.85 | 48.5°F | 0% |
7 AM FogUV: 0.2 |
49°F Feels 48°F |
98% | 6.7 NNW | 29.88 | 48.5°F | 0% |
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35°F |
30.45 inHg.
Barometer 56%
Humidity NW 10.7mph Wind |
| Sunny | ||
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