10-day forecast for Isle au Haut, ME: 58° to 86°, with precipitation expected on 3 days. The table below breaks each day into morning, afternoon, evening and overnight.
86°
Best day: Sunday, August 9
62° · 1.4 in
Worst day: Monday, August 17
Tap any day below to see morning, afternoon, evening and overnight.
Mon, 1079° / 66°0.03
Morning72°feels 73°
Afternoon78°feels 80°
Evening70°feels 71°
Overnight68°feels 68°
79 °
Isle au Haut, Monday, 10 August
Light rain. High 79°, low 66°.
Pressure29.97 inHg
Wind7.8 mph SW
Humidity74%
Visibility6.2 mi
Dew point59°
Tue, 1169° / 61°0.02
Morning65°feels 66°
Afternoon67°feels 67°
Evening69°feels 69°
Overnight65°feels 66°
69 °
Isle au Haut, Tuesday, 11 August
Light rain. High 69°, low 61°.
Pressure29.71 inHg
Wind6.1 mph S
Humidity94%
Visibility4.2 mi
Dew point62°
Wed, 1266° / 63°0
Morning63°feels 62°
Afternoon65°feels 65°
Evening64°feels 64°
Overnight63°feels 63°
66 °
Isle au Haut, Wednesday, 12 August
Overcast. High 66°, low 63°.
Pressure29.77 inHg
Wind10.3 mph SW
Humidity79%
Visibility6.2 mi
Dew point58°
Thu, 1366° / 61°0.11
Morning62°feels 62°
Afternoon63°feels 64°
Evening64°feels 64°
Overnight62°feels 63°
66 °
Isle au Haut, Thursday, 13 August
Light rain. High 66°, low 61°.
Pressure29.71 inHg
Wind10.6 mph S
Humidity89%
Visibility6.2 mi
Dew point61°
Fri, 1465° / 59°0
Morning60°feels 59°
Afternoon63°feels 62°
Evening64°feels 64°
Overnight61°feels 60°
65 °
Isle au Haut, Friday, 14 August
Partly cloudy. High 65°, low 59°.
Pressure29.94 inHg
Wind18.9 mph NW
Humidity70%
Visibility—
Dew point52°
Sat, 1564° / 59°0
Morning60°feels 59°
Afternoon62°feels 61°
Evening63°feels 63°
Overnight62°feels 62°
64 °
Isle au Haut, Saturday, 15 August
Clear. High 64°, low 59°.
Pressure30.15 inHg
Wind19 mph SW
Humidity65%
Visibility—
Dew point50°
Sun, 1663° / 58°0.96
Morning61°feels 61°
Afternoon63°feels 63°
Evening62°feels 62°
Overnight59°feels 58°
63 °
Isle au Haut, Sunday, 16 August
Heavy rain. High 63°, low 58°.
Pressure30.03 inHg
Wind36.4 mph SE
Humidity81%
Visibility—
Dew point56°
Mon, 1762° / 58°1.4
Morning60°feels 61°
Afternoon59°feels 58°
Evening62°feels 61°
Overnight61°feels 61°
62 °
Isle au Haut, Monday, 17 August
Heavy rain. High 62°, low 58°.
Pressure29.68 inHg
Wind32 mph N
Humidity92%
Visibility—
Dew point56°
Tue, 1865° / 60°0
Morning61°feels 61°
Afternoon63°feels 63°
Evening65°feels 65°
Overnight62°feels 62°
65 °
Isle au Haut, Tuesday, 18 August
Overcast. High 65°, low 60°.
Pressure30.06 inHg
Wind13.2 mph SW
Humidity81%
Visibility—
Dew point56°
About this forecast
How reliable is a 10-day forecast?
The first 3–5 days are the most reliable, typically within 2–4°. From day six to ten the models show the trend: the direction of change is right more often than the exact numbers.
What does the time-of-day table show?
Temperature in Isle au Haut, ME around 8am, 2pm, 8pm and 2am each day — handy for planning a walk, a drive or work outdoors.
How is the best day chosen?
We weigh the daytime high against precipitation: a warm, dry day scores highest.